TY  - JOUR
AU  - Vasiljević, Zorka Z
AU  - Vunduk, Jovana
AU  - Dojčinović, Milena
AU  - Mišković, Goran
AU  - Tadic, Nenad
AU  - Vidic, Jasmina
AU  - Nikolić, Maria Vesna
PY  - 2024
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3190
AB  - In this paper, we have systematically studied the structural, morphological, and optical properties of Ni-doped TiO2, synthesized via a simple, cost-effective electrospinning method followed by calcination at 500 C. The nanofibers with a core-shell structure were relatively homogeneous, smooth and randomly oriented, and there were no significant differences in fiber diameters due to Ni2+ content. Core loss mapping using electron energy loss spectroscopy confirmed an even distribution of titanium and relatively uniform nickel in the fibers. It was found that doping with 0.5 mol.% Ni2+ decreased the rutile content, while doping with 1 mol.% Ni2+ resulted in a pure anatase phase with a significantly increased specific surface area (36.6 m2/g). Further increase in Ni2+ content (3-10 mol.%) not only prolonged the response of TiO2 nanofibers to visible light, but also increased the specific surface area (49.5 m2/g), decreased crystallite size (7 nm), and increased rutile content in TiO2 (33 wt.%). Photoluminescence analysis revealed that doping TiO2 with different amounts of Ni2+ leads to a gradual decrease of emission spectra intensity and red shift in the maxima positions. The XPS results confirmed that as the Ni2+ content enlarged, the Ti2+ and Ti3+ content increased significantly, effectively promoting the formation of oxygen vacancies. Raman analysis showed that an increase in nickel content (3-5 mol.%) led to a decrease and shift in peak intensity due to Ti3+ formation and also the possible presence of NiTiO3 phases. HRTEM analysis showed that Ni was doped into the substitution sites of both the anatase and rutile TiO2 lattice but had a stronger influence on the distortion of the anatase phase. The obtained results indicate that Ni-doped TiO2 nanofibers are good candidates for photocatalytic applications.
PB  - Elsevier
T2  - Food Packaging and Shelf Life
T1  - ZnO and Fe2TiO5 Nanoparticles Obtained by Green Synthesis as Active Components of Alginate Food Packaging Films
SP  - 101280
VL  - 43
DO  - 10.1016/j.fpsl.2024.101280
ER  - 

@article{
author = "Vasiljević, Zorka Z and Vunduk, Jovana and Dojčinović, Milena and Mišković, Goran and Tadic, Nenad and Vidic, Jasmina and Nikolić, Maria Vesna",
year = "2024",
abstract = "In this paper, we have systematically studied the structural, morphological, and optical properties of Ni-doped TiO2, synthesized via a simple, cost-effective electrospinning method followed by calcination at 500 C. The nanofibers with a core-shell structure were relatively homogeneous, smooth and randomly oriented, and there were no significant differences in fiber diameters due to Ni2+ content. Core loss mapping using electron energy loss spectroscopy confirmed an even distribution of titanium and relatively uniform nickel in the fibers. It was found that doping with 0.5 mol.% Ni2+ decreased the rutile content, while doping with 1 mol.% Ni2+ resulted in a pure anatase phase with a significantly increased specific surface area (36.6 m2/g). Further increase in Ni2+ content (3-10 mol.%) not only prolonged the response of TiO2 nanofibers to visible light, but also increased the specific surface area (49.5 m2/g), decreased crystallite size (7 nm), and increased rutile content in TiO2 (33 wt.%). Photoluminescence analysis revealed that doping TiO2 with different amounts of Ni2+ leads to a gradual decrease of emission spectra intensity and red shift in the maxima positions. The XPS results confirmed that as the Ni2+ content enlarged, the Ti2+ and Ti3+ content increased significantly, effectively promoting the formation of oxygen vacancies. Raman analysis showed that an increase in nickel content (3-5 mol.%) led to a decrease and shift in peak intensity due to Ti3+ formation and also the possible presence of NiTiO3 phases. HRTEM analysis showed that Ni was doped into the substitution sites of both the anatase and rutile TiO2 lattice but had a stronger influence on the distortion of the anatase phase. The obtained results indicate that Ni-doped TiO2 nanofibers are good candidates for photocatalytic applications.",
publisher = "Elsevier",
journal = "Food Packaging and Shelf Life",
title = "ZnO and Fe2TiO5 Nanoparticles Obtained by Green Synthesis as Active Components of Alginate Food Packaging Films",
pages = "101280",
volume = "43",
doi = "10.1016/j.fpsl.2024.101280"
}

Vasiljević, Z. Z., Vunduk, J., Dojčinović, M., Mišković, G., Tadic, N., Vidic, J.,& Nikolić, M. V.. (2024). ZnO and Fe2TiO5 Nanoparticles Obtained by Green Synthesis as Active Components of Alginate Food Packaging Films. in Food Packaging and Shelf Life
Elsevier., 43, 101280.
https://doi.org/10.1016/j.fpsl.2024.101280

Vasiljević ZZ, Vunduk J, Dojčinović M, Mišković G, Tadic N, Vidic J, Nikolić MV. ZnO and Fe2TiO5 Nanoparticles Obtained by Green Synthesis as Active Components of Alginate Food Packaging Films. in Food Packaging and Shelf Life. 2024;43:101280.
doi:10.1016/j.fpsl.2024.101280 .

Vasiljević, Zorka Z, Vunduk, Jovana, Dojčinović, Milena, Mišković, Goran, Tadic, Nenad, Vidic, Jasmina, Nikolić, Maria Vesna, "ZnO and Fe2TiO5 Nanoparticles Obtained by Green Synthesis as Active Components of Alginate Food Packaging Films" in Food Packaging and Shelf Life, 43 (2024):101280,
https://doi.org/10.1016/j.fpsl.2024.101280 . .

TY  - JOUR
AU  - Dojčinović, Milena
AU  - Stojković Simatović, Ivana
AU  - Nikolić, Maria Vesna
PY  - 2024
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3185
AB  - Ni foam is an extensively used current collector and substrate in investigations of electrochemically active materials such as supercapacitors and electrocatalysts for oxygen and hydrogen evolution reactions. This material is relatively cheap, porous, and conductive and has a large specific surface area, all of which make it a good substrate. We investigated Ni-Mg ferrites and NiMn2O4 as active materials for electrochemical energy storage. These materials, when loaded on Ni foam, gave promising capacitance values: 172 F/g (at 2 mV/s) for NiMn2O4 in 6 M KOH and 242 F/g (at 2 mV/s) for MgFe2O4 in 3 M KOH. Nevertheless, during the authors’ work, many experimental problems occurred. Inconsistencies in the results directed further investigation towards measuring the capacitance of the active materials using GCE and platinum electrodes as substrates to discover if Ni foam was the culprit of the inconsistencies. When non-nickel substrates were used, both NiMn2O4 and MgFe2O4 showed reduced capacitance. Experimental problems associated with the utilization of Ni foam as a substrate for active materials in supercapacitor electrodes are discussed here, combined with other problems already addressed in the scientific literature
PB  - MDPI
T2  - Materials
T1  - Supercapacitor electrodes: Is nickel foam the right substrate for active materials?
IS  - 6
SP  - 1292
VL  - 17
DO  - 10.3390/ma17061292
ER  - 

@article{
author = "Dojčinović, Milena and Stojković Simatović, Ivana and Nikolić, Maria Vesna",
year = "2024",
abstract = "Ni foam is an extensively used current collector and substrate in investigations of electrochemically active materials such as supercapacitors and electrocatalysts for oxygen and hydrogen evolution reactions. This material is relatively cheap, porous, and conductive and has a large specific surface area, all of which make it a good substrate. We investigated Ni-Mg ferrites and NiMn2O4 as active materials for electrochemical energy storage. These materials, when loaded on Ni foam, gave promising capacitance values: 172 F/g (at 2 mV/s) for NiMn2O4 in 6 M KOH and 242 F/g (at 2 mV/s) for MgFe2O4 in 3 M KOH. Nevertheless, during the authors’ work, many experimental problems occurred. Inconsistencies in the results directed further investigation towards measuring the capacitance of the active materials using GCE and platinum electrodes as substrates to discover if Ni foam was the culprit of the inconsistencies. When non-nickel substrates were used, both NiMn2O4 and MgFe2O4 showed reduced capacitance. Experimental problems associated with the utilization of Ni foam as a substrate for active materials in supercapacitor electrodes are discussed here, combined with other problems already addressed in the scientific literature",
publisher = "MDPI",
journal = "Materials",
title = "Supercapacitor electrodes: Is nickel foam the right substrate for active materials?",
number = "6",
pages = "1292",
volume = "17",
doi = "10.3390/ma17061292"
}

Dojčinović, M., Stojković Simatović, I.,& Nikolić, M. V.. (2024). Supercapacitor electrodes: Is nickel foam the right substrate for active materials?. in Materials
MDPI., 17(6), 1292.
https://doi.org/10.3390/ma17061292

Dojčinović M, Stojković Simatović I, Nikolić MV. Supercapacitor electrodes: Is nickel foam the right substrate for active materials?. in Materials. 2024;17(6):1292.
doi:10.3390/ma17061292 .

Dojčinović, Milena, Stojković Simatović, Ivana, Nikolić, Maria Vesna, "Supercapacitor electrodes: Is nickel foam the right substrate for active materials?" in Materials, 17, no. 6 (2024):1292,
https://doi.org/10.3390/ma17061292 . .

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Singh, Charanjeet
AU  - Bogdanović, Milica
PY  - 2024
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3166
AB  - Complex impedance spectra at room temperature in the frequency range of 8 Hz—5 MHz were measured on freshly cut leaf sections of the Aloe vera plant by AC impedance spectroscopy. They were analyzed using a classical 'brickwork' equivalent circuit composed of grain and grain boundary contributions commonly applied to solid-state materials. The obtained grain resistance/capacitance was 0.4 MΩ/72 pF and grain boundary resistance/ capacitance was 66.4 MΩ/50 nF. The determined conductivity changed according to the Jonscher power law with σDC of 4.02 · 10–5 (Ωm)−1 and frequency constant of 0.92 characteristic for hopping as the conduction mechanism. Analysis of dielectric permittivity and electric modulus confirmed the non-Debye relaxation behavior. Nyquist plots for electric modulus revealed conductivity relaxation in the low frequency attributed to grain boundaries and impedance modulus displayed dielectric relaxation in the high frequency region associated with grains. A correlation has been established among the investigated parameters, morphology, and EIS-derived simulated parameters.
PB  - IOP publishing
T2  - Materials Research Express
T1  - Exploration of the charge transport mechanism, complex impedance, dielectric/electric modulus and energy storage characteristics of the aloe vera (Aloe Barbadensis Miller) plant
SP  - 016302
VL  - 11
DO  - 10.1088/2053-1591/ad1b03
ER  - 

@article{
author = "Nikolić, Maria Vesna and Singh, Charanjeet and Bogdanović, Milica",
year = "2024",
abstract = "Complex impedance spectra at room temperature in the frequency range of 8 Hz—5 MHz were measured on freshly cut leaf sections of the Aloe vera plant by AC impedance spectroscopy. They were analyzed using a classical 'brickwork' equivalent circuit composed of grain and grain boundary contributions commonly applied to solid-state materials. The obtained grain resistance/capacitance was 0.4 MΩ/72 pF and grain boundary resistance/ capacitance was 66.4 MΩ/50 nF. The determined conductivity changed according to the Jonscher power law with σDC of 4.02 · 10–5 (Ωm)−1 and frequency constant of 0.92 characteristic for hopping as the conduction mechanism. Analysis of dielectric permittivity and electric modulus confirmed the non-Debye relaxation behavior. Nyquist plots for electric modulus revealed conductivity relaxation in the low frequency attributed to grain boundaries and impedance modulus displayed dielectric relaxation in the high frequency region associated with grains. A correlation has been established among the investigated parameters, morphology, and EIS-derived simulated parameters.",
publisher = "IOP publishing",
journal = "Materials Research Express",
title = "Exploration of the charge transport mechanism, complex impedance, dielectric/electric modulus and energy storage characteristics of the aloe vera (Aloe Barbadensis Miller) plant",
pages = "016302",
volume = "11",
doi = "10.1088/2053-1591/ad1b03"
}

Nikolić, M. V., Singh, C.,& Bogdanović, M.. (2024). Exploration of the charge transport mechanism, complex impedance, dielectric/electric modulus and energy storage characteristics of the aloe vera (Aloe Barbadensis Miller) plant. in Materials Research Express
IOP publishing., 11, 016302.
https://doi.org/10.1088/2053-1591/ad1b03

Nikolić MV, Singh C, Bogdanović M. Exploration of the charge transport mechanism, complex impedance, dielectric/electric modulus and energy storage characteristics of the aloe vera (Aloe Barbadensis Miller) plant. in Materials Research Express. 2024;11:016302.
doi:10.1088/2053-1591/ad1b03 .

Nikolić, Maria Vesna, Singh, Charanjeet, Bogdanović, Milica, "Exploration of the charge transport mechanism, complex impedance, dielectric/electric modulus and energy storage characteristics of the aloe vera (Aloe Barbadensis Miller) plant" in Materials Research Express, 11 (2024):016302,
https://doi.org/10.1088/2053-1591/ad1b03 . .

TY  - CONF
AU  - Vasiljević, Zorka Z
AU  - Dojčinović, Milena
AU  - Ilić, Nikola
AU  - Vujančević, Jelena
AU  - Nikolić, Maria Vesna
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3177
AB  - Pure phase orthorhombic pseudobrookite (Fe2TiO5) was synthesized using a
modified sol-gel method. Bulk samples were obtained by uniaxial pressing of the
obtained powder into compacts sintered at 900 oC for 2 h. A noticeable NTC
thermistor effect was noted with a B20/55 value of 5747 K and high resistivity of 45
Mcm at 25 oC. A non-linear current-voltage characteristic was observed in the
voltage range (0.2–1100 V) at room temperature (25 oC). Non-saturated (lossy) P-E
loops were obtained at both measured frequencies (100 Hz and 1 kHz) more
expressed for the higher measured frequency, with the maximal polarization of
0.291 mikroC/cm2 and remanent polarization of 0.123 mikroC/cm2 for 20 kV/cm2 and 1 kHz.
Complex impedance measured in the temperature range 20–330 oC enabled analysis
of the contribution of grain boundary and grains to the conduction mechanism. Bulk
conductivity data determined in this temperature range was analyzed using
Jonscher’s universal dielectric response model and showed that the conduction
process followed the nearest neighbor hopping conduction mechanism.
PB  - Institut za multidisciplinarna istraņivanja Kneza Vińeslava 1, 11000 Belgrade, Serbia
C3  - Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia, 2023
T1  - Investigating NTC thermistor, ferroelectric and electric properties of Fe2TiO5
SP  - 118
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_3177
ER  - 

@conference{
author = "Vasiljević, Zorka Z and Dojčinović, Milena and Ilić, Nikola and Vujančević, Jelena and Nikolić, Maria Vesna",
year = "2023",
abstract = "Pure phase orthorhombic pseudobrookite (Fe2TiO5) was synthesized using a
modified sol-gel method. Bulk samples were obtained by uniaxial pressing of the
obtained powder into compacts sintered at 900 oC for 2 h. A noticeable NTC
thermistor effect was noted with a B20/55 value of 5747 K and high resistivity of 45
Mcm at 25 oC. A non-linear current-voltage characteristic was observed in the
voltage range (0.2–1100 V) at room temperature (25 oC). Non-saturated (lossy) P-E
loops were obtained at both measured frequencies (100 Hz and 1 kHz) more
expressed for the higher measured frequency, with the maximal polarization of
0.291 mikroC/cm2 and remanent polarization of 0.123 mikroC/cm2 for 20 kV/cm2 and 1 kHz.
Complex impedance measured in the temperature range 20–330 oC enabled analysis
of the contribution of grain boundary and grains to the conduction mechanism. Bulk
conductivity data determined in this temperature range was analyzed using
Jonscher’s universal dielectric response model and showed that the conduction
process followed the nearest neighbor hopping conduction mechanism.",
publisher = "Institut za multidisciplinarna istraņivanja Kneza Vińeslava 1, 11000 Belgrade, Serbia",
journal = "Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia, 2023",
title = "Investigating NTC thermistor, ferroelectric and electric properties of Fe2TiO5",
pages = "118",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_3177"
}

Vasiljević, Z. Z., Dojčinović, M., Ilić, N., Vujančević, J.,& Nikolić, M. V.. (2023). Investigating NTC thermistor, ferroelectric and electric properties of Fe2TiO5. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia, 2023
Institut za multidisciplinarna istraņivanja Kneza Vińeslava 1, 11000 Belgrade, Serbia., 118.
https://hdl.handle.net/21.15107/rcub_rimsi_3177

Vasiljević ZZ, Dojčinović M, Ilić N, Vujančević J, Nikolić MV. Investigating NTC thermistor, ferroelectric and electric properties of Fe2TiO5. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia, 2023. 2023;:118.
https://hdl.handle.net/21.15107/rcub_rimsi_3177 .

Vasiljević, Zorka Z, Dojčinović, Milena, Ilić, Nikola, Vujančević, Jelena, Nikolić, Maria Vesna, "Investigating NTC thermistor, ferroelectric and electric properties of Fe2TiO5" in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia, 2023 (2023):118,
https://hdl.handle.net/21.15107/rcub_rimsi_3177 .

TY  - CONF
AU  - Ahmetović, Sanita
AU  - Vasiljević, Zorka Z
AU  - Rajić, Vladimir
AU  - Bartolić, Dragana
AU  - Novaković, Mirjana
AU  - Tadić, Nenad B.
AU  - Cvjetićanin, Nikola
AU  - Nikolić, Maria Vesna
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2158
AB  - In this work, titanium dioxide (TiO2) nanofibers doped with 0.5–5 mol% 
zirconium ions (Zr4+) were synthesized by combining the sol-gel process and 
electrospinning method, and calcined at 500 °C. The morphological, structural and 
optical properties of pure and Zr-doped TiO2 nanofibers were investigated. According to 
the XRD and FTIR analyses, the addition of Zr as a dopant suppressed the 
transformation of anatase to rutile phase. Scanning electron microscopy showed that all 
fibers were smooth, fragile and randomly oriented after the calcination process. HRTEM 
analysis revealed that Zr4+ ions were incorporated at the substitutional sites in the anatase 
TiO2 crystalline lattice. The photocatalytic efficiency for degradation of methylene blue 
(MB) was examined for both pure and Zr-doped TiO2 samples. Nanofibers doped with 
1% of Zr4+ ions have shown the highest photocatalytic activity of 98%, wich can be 
explained by considering lower PL intensity in the PL spectrum of this sample, 
indicating suppressed electron-hole recombination.
PB  - Faculty of Technology, University of Novi Sad  Bul. cara Lazara 1, 21000 Novi Sad, Serbia
C3  - Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad
T1  - INVESTIGATING THE EFFECTS OF Zr DOPING ON THE TITANIUM  DIOXIDE NANOFIBRES
SP  - 134/OA-101
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2158
ER  - 

@conference{
author = "Ahmetović, Sanita and Vasiljević, Zorka Z and Rajić, Vladimir and Bartolić, Dragana and Novaković, Mirjana and Tadić, Nenad B. and Cvjetićanin, Nikola and Nikolić, Maria Vesna",
year = "2023",
abstract = "In this work, titanium dioxide (TiO2) nanofibers doped with 0.5–5 mol% 
zirconium ions (Zr4+) were synthesized by combining the sol-gel process and 
electrospinning method, and calcined at 500 °C. The morphological, structural and 
optical properties of pure and Zr-doped TiO2 nanofibers were investigated. According to 
the XRD and FTIR analyses, the addition of Zr as a dopant suppressed the 
transformation of anatase to rutile phase. Scanning electron microscopy showed that all 
fibers were smooth, fragile and randomly oriented after the calcination process. HRTEM 
analysis revealed that Zr4+ ions were incorporated at the substitutional sites in the anatase 
TiO2 crystalline lattice. The photocatalytic efficiency for degradation of methylene blue 
(MB) was examined for both pure and Zr-doped TiO2 samples. Nanofibers doped with 
1% of Zr4+ ions have shown the highest photocatalytic activity of 98%, wich can be 
explained by considering lower PL intensity in the PL spectrum of this sample, 
indicating suppressed electron-hole recombination.",
publisher = "Faculty of Technology, University of Novi Sad  Bul. cara Lazara 1, 21000 Novi Sad, Serbia",
journal = "Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad",
title = "INVESTIGATING THE EFFECTS OF Zr DOPING ON THE TITANIUM  DIOXIDE NANOFIBRES",
pages = "134/OA-101",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2158"
}

Ahmetović, S., Vasiljević, Z. Z., Rajić, V., Bartolić, D., Novaković, M., Tadić, N. B., Cvjetićanin, N.,& Nikolić, M. V.. (2023). INVESTIGATING THE EFFECTS OF Zr DOPING ON THE TITANIUM  DIOXIDE NANOFIBRES. in Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad
Faculty of Technology, University of Novi Sad  Bul. cara Lazara 1, 21000 Novi Sad, Serbia., 134/OA-101.
https://hdl.handle.net/21.15107/rcub_rimsi_2158

Ahmetović S, Vasiljević ZZ, Rajić V, Bartolić D, Novaković M, Tadić NB, Cvjetićanin N, Nikolić MV. INVESTIGATING THE EFFECTS OF Zr DOPING ON THE TITANIUM  DIOXIDE NANOFIBRES. in Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad. 2023;:134/OA-101.
https://hdl.handle.net/21.15107/rcub_rimsi_2158 .

Ahmetović, Sanita, Vasiljević, Zorka Z, Rajić, Vladimir, Bartolić, Dragana, Novaković, Mirjana, Tadić, Nenad B., Cvjetićanin, Nikola, Nikolić, Maria Vesna, "INVESTIGATING THE EFFECTS OF Zr DOPING ON THE TITANIUM  DIOXIDE NANOFIBRES" in Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad (2023):134/OA-101,
https://hdl.handle.net/21.15107/rcub_rimsi_2158 .

TY  - CONF
AU  - Ahmetović, Sanita
AU  - Vasiljević, Zorka Z
AU  - Rajić, Vladmir
AU  - Bartolić, Dragana
AU  - Novaković, Mirjana
AU  - Tadić, Nenad B.
AU  - Cvjetićanin, Nikola
AU  - Nikolić, Maria Vesna
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2153
AB  - Pure, samarium (Sm3+) and zirconium (Zr4+) doped titanium dioxide (TiO2) 
nanofibers were synthesized using the electrospinning method followed by 
calcination at 500 °C for 1 h. The structure, morphology and optical properties of the 
obtained nanofibers were investigated as a function of different Sm3+ and Zr4+ 
contents (0.5–5 mol%). XRD and FTIR analysis showed that addition of Sm or Zr 
suppressed the transformation of anatase to rutile. After calcination all fibers were 
smooth, fragile and randomly oriented. HRTEM analysis revealed that doping with 
Sm didn’t affect the TiO2 crystal lattice whilst Zr4+ ions replaced the substitutional 
sites in the anatase crystalline lattice. The effects of Sm3+ and Zr4+-dopant content 
and different doses of photocatalyst on the photodegradation of methylene blue 
(MB) were monitored under UV-light illumination. TiO2:0.5%Sm3+ and 
TiO2:1.0%Zr4+ nanofibers have shown the highest photocatalytic activity of 97% 
and 98% due to red shifting of the band gap towards visible light in the case of Sm 
and suppressed electron-hole recombination shown in recorded PL spectra in the 
case of Zr.
PB  - Institut za multidisciplinarna istraživanja Kneza Višeslava 1, 11000 Belgrade, Serbia
C3  - Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia
T1  - SYNTHESIS AND CHARACTERIZATION OF PURE AND  Sm-, Zr-DOPED TiO2 NANOFIBERS AND ITS  PHOTOCATALYTIC ACTIVITY
SP  - 61/O-1
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2153
ER  - 

@conference{
author = "Ahmetović, Sanita and Vasiljević, Zorka Z and Rajić, Vladmir and Bartolić, Dragana and Novaković, Mirjana and Tadić, Nenad B. and Cvjetićanin, Nikola and Nikolić, Maria Vesna",
year = "2023",
abstract = "Pure, samarium (Sm3+) and zirconium (Zr4+) doped titanium dioxide (TiO2) 
nanofibers were synthesized using the electrospinning method followed by 
calcination at 500 °C for 1 h. The structure, morphology and optical properties of the 
obtained nanofibers were investigated as a function of different Sm3+ and Zr4+ 
contents (0.5–5 mol%). XRD and FTIR analysis showed that addition of Sm or Zr 
suppressed the transformation of anatase to rutile. After calcination all fibers were 
smooth, fragile and randomly oriented. HRTEM analysis revealed that doping with 
Sm didn’t affect the TiO2 crystal lattice whilst Zr4+ ions replaced the substitutional 
sites in the anatase crystalline lattice. The effects of Sm3+ and Zr4+-dopant content 
and different doses of photocatalyst on the photodegradation of methylene blue 
(MB) were monitored under UV-light illumination. TiO2:0.5%Sm3+ and 
TiO2:1.0%Zr4+ nanofibers have shown the highest photocatalytic activity of 97% 
and 98% due to red shifting of the band gap towards visible light in the case of Sm 
and suppressed electron-hole recombination shown in recorded PL spectra in the 
case of Zr.",
publisher = "Institut za multidisciplinarna istraživanja Kneza Višeslava 1, 11000 Belgrade, Serbia",
journal = "Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia",
title = "SYNTHESIS AND CHARACTERIZATION OF PURE AND  Sm-, Zr-DOPED TiO2 NANOFIBERS AND ITS  PHOTOCATALYTIC ACTIVITY",
pages = "61/O-1",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2153"
}

Ahmetović, S., Vasiljević, Z. Z., Rajić, V., Bartolić, D., Novaković, M., Tadić, N. B., Cvjetićanin, N.,& Nikolić, M. V.. (2023). SYNTHESIS AND CHARACTERIZATION OF PURE AND  Sm-, Zr-DOPED TiO2 NANOFIBERS AND ITS  PHOTOCATALYTIC ACTIVITY. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia
Institut za multidisciplinarna istraživanja Kneza Višeslava 1, 11000 Belgrade, Serbia., 61/O-1.
https://hdl.handle.net/21.15107/rcub_rimsi_2153

Ahmetović S, Vasiljević ZZ, Rajić V, Bartolić D, Novaković M, Tadić NB, Cvjetićanin N, Nikolić MV. SYNTHESIS AND CHARACTERIZATION OF PURE AND  Sm-, Zr-DOPED TiO2 NANOFIBERS AND ITS  PHOTOCATALYTIC ACTIVITY. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia. 2023;:61/O-1.
https://hdl.handle.net/21.15107/rcub_rimsi_2153 .

Ahmetović, Sanita, Vasiljević, Zorka Z, Rajić, Vladmir, Bartolić, Dragana, Novaković, Mirjana, Tadić, Nenad B., Cvjetićanin, Nikola, Nikolić, Maria Vesna, "SYNTHESIS AND CHARACTERIZATION OF PURE AND  Sm-, Zr-DOPED TiO2 NANOFIBERS AND ITS  PHOTOCATALYTIC ACTIVITY" in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia (2023):61/O-1,
https://hdl.handle.net/21.15107/rcub_rimsi_2153 .

TY  - CONF
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Z
AU  - Rakočević, Lazar
AU  - Pavlović, Vera P.
AU  - Ammar, Souad
AU  - Vujančević, Jelena
AU  - Nikolić, Maria Vesna
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2291
AB  - Mixed spinel ferrites MgxNi1-xFe2O4 were synthesized via sol-gel combustion synthesis with citric acid as fuel, followed by calcination at 700 °C for 3 hours. Obtained powders were characterized via X-ray diffraction analysis (XRD), X-ray photoelectron (XPS), FTIR and Raman spectroscopy and FESEM microscopy. Elemental composition was examined via energy dispersive spectroscopy (EDS). Humidity sensing properties were tested by measuring AC impedance in a climactic chamber at 25 °C and in the relative humidity range of 40–90%. Temperature sensing properties were tested by measuring DC resistance at 40% RH in the temperature range 40–90 °C. Synthesized powders were proven to be pure spinel Fd 3m phase with spherical, slightly agglomerated particles. Substitution of Mg with Ni results in structural changes such as a change in inversion parameter and particle agglomeration, which influences sensing properties of the material. Results show that the sensing properties of magnesium ferrite can be improved by incorporating 10% of nickel in the spinel lattice structure. Mg0.9Ni0.1Fe2O4 exhibited higher temperature sensitivity and higher sensitivity towards humidity compared to MgFe2O4, while further substitution of Mg with Ni resulted in the decline of sensing properties, increase in particle size and agglomeration degree.
PB  - Faculty of Technology, University of Novi Sad, Novi Sad, Serbia
C3  - Programme and Book of Abstracts of The 15th Conference for Young Scientists in Ceramics (CYSC-2023)
T1  - Magnesium substitution with nickel and its influence on the sensing properties of MgFe2O4
SP  - 62
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2291
ER  - 

@conference{
author = "Dojčinović, Milena and Vasiljević, Zorka Z and Rakočević, Lazar and Pavlović, Vera P. and Ammar, Souad and Vujančević, Jelena and Nikolić, Maria Vesna",
year = "2023",
abstract = "Mixed spinel ferrites MgxNi1-xFe2O4 were synthesized via sol-gel combustion synthesis with citric acid as fuel, followed by calcination at 700 °C for 3 hours. Obtained powders were characterized via X-ray diffraction analysis (XRD), X-ray photoelectron (XPS), FTIR and Raman spectroscopy and FESEM microscopy. Elemental composition was examined via energy dispersive spectroscopy (EDS). Humidity sensing properties were tested by measuring AC impedance in a climactic chamber at 25 °C and in the relative humidity range of 40–90%. Temperature sensing properties were tested by measuring DC resistance at 40% RH in the temperature range 40–90 °C. Synthesized powders were proven to be pure spinel Fd 3m phase with spherical, slightly agglomerated particles. Substitution of Mg with Ni results in structural changes such as a change in inversion parameter and particle agglomeration, which influences sensing properties of the material. Results show that the sensing properties of magnesium ferrite can be improved by incorporating 10% of nickel in the spinel lattice structure. Mg0.9Ni0.1Fe2O4 exhibited higher temperature sensitivity and higher sensitivity towards humidity compared to MgFe2O4, while further substitution of Mg with Ni resulted in the decline of sensing properties, increase in particle size and agglomeration degree.",
publisher = "Faculty of Technology, University of Novi Sad, Novi Sad, Serbia",
journal = "Programme and Book of Abstracts of The 15th Conference for Young Scientists in Ceramics (CYSC-2023)",
title = "Magnesium substitution with nickel and its influence on the sensing properties of MgFe2O4",
pages = "62",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2291"
}

Dojčinović, M., Vasiljević, Z. Z., Rakočević, L., Pavlović, V. P., Ammar, S., Vujančević, J.,& Nikolić, M. V.. (2023). Magnesium substitution with nickel and its influence on the sensing properties of MgFe2O4. in Programme and Book of Abstracts of The 15th Conference for Young Scientists in Ceramics (CYSC-2023)
Faculty of Technology, University of Novi Sad, Novi Sad, Serbia., 62.
https://hdl.handle.net/21.15107/rcub_rimsi_2291

Dojčinović M, Vasiljević ZZ, Rakočević L, Pavlović VP, Ammar S, Vujančević J, Nikolić MV. Magnesium substitution with nickel and its influence on the sensing properties of MgFe2O4. in Programme and Book of Abstracts of The 15th Conference for Young Scientists in Ceramics (CYSC-2023). 2023;:62.
https://hdl.handle.net/21.15107/rcub_rimsi_2291 .

Dojčinović, Milena, Vasiljević, Zorka Z, Rakočević, Lazar, Pavlović, Vera P., Ammar, Souad, Vujančević, Jelena, Nikolić, Maria Vesna, "Magnesium substitution with nickel and its influence on the sensing properties of MgFe2O4" in Programme and Book of Abstracts of The 15th Conference for Young Scientists in Ceramics (CYSC-2023) (2023):62,
https://hdl.handle.net/21.15107/rcub_rimsi_2291 .

TY  - CONF
AU  - Vasiljević, Zorka Z
AU  - Vunduk, Jovana
AU  - Dojčinović, Milena
AU  - Bartolić, Dragana
AU  - Ognjanović, Miloš
AU  - Tadic, Nenad
AU  - Mišković, Goran
AU  - Nikolić, Maria Vesna
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2132
AB  - Green synthesis is a more sustainable option using renewable biomass such as plants as
reducing or stabilizing agents compared to toxic chemical compounds. These biological
substances also behave as capping agents, which control the size and shape of the
nanoparticles. In this work, ZnO nanoparticles (NPs) have been prepared via a simple, low
cost and ecofriendly method using citrus fruit peel and extracts as biological reducing agents.
Zinc nitrate and zinc acetate were used as a source of zinc ions.XRD analysis revealed the
formation of a ZnO wurtzite phase without impurities. Synthesized ZnO NPs with an average
electronic band gap ∼3 eV were obtained and found to have round-like, hexagonal-like or
needle-like structures depending on precursor type. EDS analysis showed a homogeoneous
distribution in Zn and O elements, attributed to single-phase ZnO constituents. Antibacterial
and antioxidant activities of synthesized NPs were evaluated. Obtained results showed that
ZnO synthesized from nitrate precursors are more effective in inhibiting growth of
Salmonella and Staphylococcus Aureus. Antioxidant activity of ZnO NPs determined using
CUPRAC and ABTS assays showed higher activity of ZnO obtained using nitrate precursors.
The maximum scavenging activity of 90% was observed at the concentration of 10 mg/ml
PB  - Serbian Ceramic Society
C3  - Serbian Ceramic Society Conference - ADVANCED CERAMICS AND APPLICATION XI Program and the Book of Abstracts
T1  - Biosynthesis of ZnO nanoparticles using agro-waste with antibacterial and antioxidant activity
SP  - 43
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2132
ER  - 

@conference{
author = "Vasiljević, Zorka Z and Vunduk, Jovana and Dojčinović, Milena and Bartolić, Dragana and Ognjanović, Miloš and Tadic, Nenad and Mišković, Goran and Nikolić, Maria Vesna",
year = "2023",
abstract = "Green synthesis is a more sustainable option using renewable biomass such as plants as
reducing or stabilizing agents compared to toxic chemical compounds. These biological
substances also behave as capping agents, which control the size and shape of the
nanoparticles. In this work, ZnO nanoparticles (NPs) have been prepared via a simple, low
cost and ecofriendly method using citrus fruit peel and extracts as biological reducing agents.
Zinc nitrate and zinc acetate were used as a source of zinc ions.XRD analysis revealed the
formation of a ZnO wurtzite phase without impurities. Synthesized ZnO NPs with an average
electronic band gap ∼3 eV were obtained and found to have round-like, hexagonal-like or
needle-like structures depending on precursor type. EDS analysis showed a homogeoneous
distribution in Zn and O elements, attributed to single-phase ZnO constituents. Antibacterial
and antioxidant activities of synthesized NPs were evaluated. Obtained results showed that
ZnO synthesized from nitrate precursors are more effective in inhibiting growth of
Salmonella and Staphylococcus Aureus. Antioxidant activity of ZnO NPs determined using
CUPRAC and ABTS assays showed higher activity of ZnO obtained using nitrate precursors.
The maximum scavenging activity of 90% was observed at the concentration of 10 mg/ml",
publisher = "Serbian Ceramic Society",
journal = "Serbian Ceramic Society Conference - ADVANCED CERAMICS AND APPLICATION XI Program and the Book of Abstracts",
title = "Biosynthesis of ZnO nanoparticles using agro-waste with antibacterial and antioxidant activity",
pages = "43",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2132"
}

Vasiljević, Z. Z., Vunduk, J., Dojčinović, M., Bartolić, D., Ognjanović, M., Tadic, N., Mišković, G.,& Nikolić, M. V.. (2023). Biosynthesis of ZnO nanoparticles using agro-waste with antibacterial and antioxidant activity. in Serbian Ceramic Society Conference - ADVANCED CERAMICS AND APPLICATION XI Program and the Book of Abstracts
Serbian Ceramic Society., 43.
https://hdl.handle.net/21.15107/rcub_rimsi_2132

Vasiljević ZZ, Vunduk J, Dojčinović M, Bartolić D, Ognjanović M, Tadic N, Mišković G, Nikolić MV. Biosynthesis of ZnO nanoparticles using agro-waste with antibacterial and antioxidant activity. in Serbian Ceramic Society Conference - ADVANCED CERAMICS AND APPLICATION XI Program and the Book of Abstracts. 2023;:43.
https://hdl.handle.net/21.15107/rcub_rimsi_2132 .

Vasiljević, Zorka Z, Vunduk, Jovana, Dojčinović, Milena, Bartolić, Dragana, Ognjanović, Miloš, Tadic, Nenad, Mišković, Goran, Nikolić, Maria Vesna, "Biosynthesis of ZnO nanoparticles using agro-waste with antibacterial and antioxidant activity" in Serbian Ceramic Society Conference - ADVANCED CERAMICS AND APPLICATION XI Program and the Book of Abstracts (2023):43,
https://hdl.handle.net/21.15107/rcub_rimsi_2132 .

TY  - CONF
AU  - Nikolić, Maria Vesna
AU  - Vasiljević, Zorka Z
AU  - Vidic, Jasmina
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2133
AB  - Replacement of non-degradable food packaging materials with a biodegradable alternative
enables reduction of environmental pollution. Metal oxides nanoparticles are good candidates
for enhancing and ensuring good mechanical, thermal and barrier properties of biodegradable
polymer packaging films. Their incorporation in biodegradable food packaging films has also
lead to enhanced antioxidant, antifungal and antibacterial properties of the food packaging
and also oxygen barrier properties, UV protection, oxygen and ethylene scavenging resulting
in an active food packaging material. The synthesis method has a significant influence on the
resulting properties of metal oxide nanoparticles. Green synthesis using plant extracts and
extracts of plant bio-waste as reducing and capping agents are one direction for obtaining
metal oxide nanoparticles with improved antioxidant and antimicrobial properties. Utilization
of bio-waste materials both for metal oxide nanoparticle synthesis and as a source of
biopolymers for packaging enables better environmental protection and ensures a circular bioeconomy. In selection of metal oxide nanoparticles suitable for application in active
packaging bio-nano-composites special attention needs to be paid to nanoparticle migration
and cytotoxic activity in order to produce safe, active and biodegradable food packaging
materials for the future.
PB  - Serbian Ceramic Society
C3  - Serbian Ceramic Society Conference - ADVANCED CERAMICS AND APPLICATION XI Program and the Book of Abstracts
T1  - Metal oxide nanoparticles as active food packaging components
SP  - 42
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2133
ER  - 

@conference{
author = "Nikolić, Maria Vesna and Vasiljević, Zorka Z and Vidic, Jasmina",
year = "2023",
abstract = "Replacement of non-degradable food packaging materials with a biodegradable alternative
enables reduction of environmental pollution. Metal oxides nanoparticles are good candidates
for enhancing and ensuring good mechanical, thermal and barrier properties of biodegradable
polymer packaging films. Their incorporation in biodegradable food packaging films has also
lead to enhanced antioxidant, antifungal and antibacterial properties of the food packaging
and also oxygen barrier properties, UV protection, oxygen and ethylene scavenging resulting
in an active food packaging material. The synthesis method has a significant influence on the
resulting properties of metal oxide nanoparticles. Green synthesis using plant extracts and
extracts of plant bio-waste as reducing and capping agents are one direction for obtaining
metal oxide nanoparticles with improved antioxidant and antimicrobial properties. Utilization
of bio-waste materials both for metal oxide nanoparticle synthesis and as a source of
biopolymers for packaging enables better environmental protection and ensures a circular bioeconomy. In selection of metal oxide nanoparticles suitable for application in active
packaging bio-nano-composites special attention needs to be paid to nanoparticle migration
and cytotoxic activity in order to produce safe, active and biodegradable food packaging
materials for the future.",
publisher = "Serbian Ceramic Society",
journal = "Serbian Ceramic Society Conference - ADVANCED CERAMICS AND APPLICATION XI Program and the Book of Abstracts",
title = "Metal oxide nanoparticles as active food packaging components",
pages = "42",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2133"
}

Nikolić, M. V., Vasiljević, Z. Z.,& Vidic, J.. (2023). Metal oxide nanoparticles as active food packaging components. in Serbian Ceramic Society Conference - ADVANCED CERAMICS AND APPLICATION XI Program and the Book of Abstracts
Serbian Ceramic Society., 42.
https://hdl.handle.net/21.15107/rcub_rimsi_2133

Nikolić MV, Vasiljević ZZ, Vidic J. Metal oxide nanoparticles as active food packaging components. in Serbian Ceramic Society Conference - ADVANCED CERAMICS AND APPLICATION XI Program and the Book of Abstracts. 2023;:42.
https://hdl.handle.net/21.15107/rcub_rimsi_2133 .

Nikolić, Maria Vesna, Vasiljević, Zorka Z, Vidic, Jasmina, "Metal oxide nanoparticles as active food packaging components" in Serbian Ceramic Society Conference - ADVANCED CERAMICS AND APPLICATION XI Program and the Book of Abstracts (2023):42,
https://hdl.handle.net/21.15107/rcub_rimsi_2133 .

TY  - JOUR
AU  - Sentic, Milica
AU  - Trajkovic, Ivana
AU  - Manojlović, Dragan
AU  - Stanković, Dalibor
AU  - Nikolić, Maria Vesna
AU  - Sojic, Neso
AU  - Vidic, Jasmina
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2661
AB  - The modern lifestyle has increased our utilization of pollutants such as heavy metals,
aromatic compounds, and contaminants that are of rising concern, involving pharmaceutical and personal products and other materials that may have an important environmental impact. In particular, the ultimate results of the intense use of highly stable materials, such as heavy metals and chemical restudies, are that they turn into waste materials, which, when discharged, accumulate in environmental water bodies. In this context, the present review presents the application of metal–organic frameworks (MOFs) in electrochemiluminescent (ECL) sensing for water pollutant detection. MOF composites applied as innovative luminophore or luminophore carriers, materials for electrode modification, and the enhancement of co-reaction in ECL sensors have enabled the sensitive monitoring of some of the most common contaminants of emerging concern such as heavy metals, volatile organic compounds, pharmaceuticals, industrial chemicals, and cyanotoxins. Moreover, we provide future trends and prospects associated with ECL MOF composites for environmental sensing.
PB  - MDPI
T2  - mdpi
T1  - Luminescent Metal–Organic Frameworks for Electrochemiluminescent Detection of Water Pollutants
IS  - 23
SP  - 7502
VL  - 16
DO  - 10.3390/ma16237502
ER  - 

@article{
author = "Sentic, Milica and Trajkovic, Ivana and Manojlović, Dragan and Stanković, Dalibor and Nikolić, Maria Vesna and Sojic, Neso and Vidic, Jasmina",
year = "2023",
abstract = "The modern lifestyle has increased our utilization of pollutants such as heavy metals,
aromatic compounds, and contaminants that are of rising concern, involving pharmaceutical and personal products and other materials that may have an important environmental impact. In particular, the ultimate results of the intense use of highly stable materials, such as heavy metals and chemical restudies, are that they turn into waste materials, which, when discharged, accumulate in environmental water bodies. In this context, the present review presents the application of metal–organic frameworks (MOFs) in electrochemiluminescent (ECL) sensing for water pollutant detection. MOF composites applied as innovative luminophore or luminophore carriers, materials for electrode modification, and the enhancement of co-reaction in ECL sensors have enabled the sensitive monitoring of some of the most common contaminants of emerging concern such as heavy metals, volatile organic compounds, pharmaceuticals, industrial chemicals, and cyanotoxins. Moreover, we provide future trends and prospects associated with ECL MOF composites for environmental sensing.",
publisher = "MDPI",
journal = "mdpi",
title = "Luminescent Metal–Organic Frameworks for Electrochemiluminescent Detection of Water Pollutants",
number = "23",
pages = "7502",
volume = "16",
doi = "10.3390/ma16237502"
}

Sentic, M., Trajkovic, I., Manojlović, D., Stanković, D., Nikolić, M. V., Sojic, N.,& Vidic, J.. (2023). Luminescent Metal–Organic Frameworks for Electrochemiluminescent Detection of Water Pollutants. in mdpi
MDPI., 16(23), 7502.
https://doi.org/10.3390/ma16237502

Sentic M, Trajkovic I, Manojlović D, Stanković D, Nikolić MV, Sojic N, Vidic J. Luminescent Metal–Organic Frameworks for Electrochemiluminescent Detection of Water Pollutants. in mdpi. 2023;16(23):7502.
doi:10.3390/ma16237502 .

Sentic, Milica, Trajkovic, Ivana, Manojlović, Dragan, Stanković, Dalibor, Nikolić, Maria Vesna, Sojic, Neso, Vidic, Jasmina, "Luminescent Metal–Organic Frameworks for Electrochemiluminescent Detection of Water Pollutants" in mdpi, 16, no. 23 (2023):7502,
https://doi.org/10.3390/ma16237502 . .

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Ammar, Souad
AU  - Ilić, Nikola
AU  - Singh, Charanjeet
AU  - Dojčinović, Milena
AU  - Jotania, Rajshree
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2128
AB  - SrCo0.2Zn0.2Fe11.6O18.8 hexaferrite was obtained by a “one-pot” green sol-gel synthesis
method utilizing aqueous mandarin orange (Citrus reticulata) peel extract as an eco-friendly reactant.
The research objective was to analyze the influence of cobalt and zinc co-doping and the synthesis
process on the structure, morphology, magnetic, dielectric and ferroelectric properties of strontium
hexaferrite in view of future applications. Structural and morphological characterization using
X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron
microscopy coupled to energy dispersive X-ray spectrometry (SEM-EDX) confirmed the formation
of a Co and Zn ion incorporated M-type magnetoplumbite with c/a lattice parameter ratio of 3.919
as crystallite nanoplatelets of 32 and 53 nm in thickness and width, respectively. The magnetic
hysteresis loop of the synthesized powder recorded by a vibrating sample magnetometer (VSM) at
room temperature confirmed its ferromagnetic nature with a coercive field (Hc) of 2539 Oe and a
saturation magnetization (Ms) and remanent magnetization (Mr) of 44.6 emu/g and 21.4 emu/g,
respectively. Room temperature ferroelectric loops measured at 100 Hz showed a maximal (Pmax)
and a remanent (Pr) polarization of 195.4 and 31.0 nC/cm2, respectively. Both increased when the
magnitude of the applied electrical field increased in the 1–24 kV/cm range. The dielectric constant
decreased with the frequency increase, in accordance with the Maxwell–Wagner model, while the
conductivity changed according to the Jonscher power law. The complex impedance was modeled
with an equivalent circuit, enabling identification of the dominant contribution of grain boundary
resistance (272.3 MW) and capacitance (7.16 pF).
PB  - MDPI
T2  - Crystals
T1  - Ferroelectric, Magnetic and Dielectric Properties of SrCo0.2Zn0.2Fe11.6O18.8 Hexaferrite Obtained by “One-Pot” Green Sol-Gel Synthesis Utilizing Citrus reticulata Peel Extract
IS  - 1452
VL  - 13
DO  - 10.3390/cryst13101452
ER  - 

@article{
author = "Nikolić, Maria Vesna and Ammar, Souad and Ilić, Nikola and Singh, Charanjeet and Dojčinović, Milena and Jotania, Rajshree",
year = "2023",
abstract = "SrCo0.2Zn0.2Fe11.6O18.8 hexaferrite was obtained by a “one-pot” green sol-gel synthesis
method utilizing aqueous mandarin orange (Citrus reticulata) peel extract as an eco-friendly reactant.
The research objective was to analyze the influence of cobalt and zinc co-doping and the synthesis
process on the structure, morphology, magnetic, dielectric and ferroelectric properties of strontium
hexaferrite in view of future applications. Structural and morphological characterization using
X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron
microscopy coupled to energy dispersive X-ray spectrometry (SEM-EDX) confirmed the formation
of a Co and Zn ion incorporated M-type magnetoplumbite with c/a lattice parameter ratio of 3.919
as crystallite nanoplatelets of 32 and 53 nm in thickness and width, respectively. The magnetic
hysteresis loop of the synthesized powder recorded by a vibrating sample magnetometer (VSM) at
room temperature confirmed its ferromagnetic nature with a coercive field (Hc) of 2539 Oe and a
saturation magnetization (Ms) and remanent magnetization (Mr) of 44.6 emu/g and 21.4 emu/g,
respectively. Room temperature ferroelectric loops measured at 100 Hz showed a maximal (Pmax)
and a remanent (Pr) polarization of 195.4 and 31.0 nC/cm2, respectively. Both increased when the
magnitude of the applied electrical field increased in the 1–24 kV/cm range. The dielectric constant
decreased with the frequency increase, in accordance with the Maxwell–Wagner model, while the
conductivity changed according to the Jonscher power law. The complex impedance was modeled
with an equivalent circuit, enabling identification of the dominant contribution of grain boundary
resistance (272.3 MW) and capacitance (7.16 pF).",
publisher = "MDPI",
journal = "Crystals",
title = "Ferroelectric, Magnetic and Dielectric Properties of SrCo0.2Zn0.2Fe11.6O18.8 Hexaferrite Obtained by “One-Pot” Green Sol-Gel Synthesis Utilizing Citrus reticulata Peel Extract",
number = "1452",
volume = "13",
doi = "10.3390/cryst13101452"
}

Nikolić, M. V., Ammar, S., Ilić, N., Singh, C., Dojčinović, M.,& Jotania, R.. (2023). Ferroelectric, Magnetic and Dielectric Properties of SrCo0.2Zn0.2Fe11.6O18.8 Hexaferrite Obtained by “One-Pot” Green Sol-Gel Synthesis Utilizing Citrus reticulata Peel Extract. in Crystals
MDPI., 13(1452).
https://doi.org/10.3390/cryst13101452

Nikolić MV, Ammar S, Ilić N, Singh C, Dojčinović M, Jotania R. Ferroelectric, Magnetic and Dielectric Properties of SrCo0.2Zn0.2Fe11.6O18.8 Hexaferrite Obtained by “One-Pot” Green Sol-Gel Synthesis Utilizing Citrus reticulata Peel Extract. in Crystals. 2023;13(1452).
doi:10.3390/cryst13101452 .

Nikolić, Maria Vesna, Ammar, Souad, Ilić, Nikola, Singh, Charanjeet, Dojčinović, Milena, Jotania, Rajshree, "Ferroelectric, Magnetic and Dielectric Properties of SrCo0.2Zn0.2Fe11.6O18.8 Hexaferrite Obtained by “One-Pot” Green Sol-Gel Synthesis Utilizing Citrus reticulata Peel Extract" in Crystals, 13, no. 1452 (2023),
https://doi.org/10.3390/cryst13101452 . .

TY  - CONF
AU  - Nikolić, Maria Vesna
AU  - Mastilović, Sreten
PY  - 2023
UR  - https://ieeexplore.ieee.org/document/10168374
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2022
AB  - In this work we have established a mathematical function to model the influence of the ambient temperature, relative humidity and frequency on the change of impedance. The proposed empirical description is a combination of the power function (modeling the temperature effect) and a reverse-sigmoid function inspired by the three-parameter Weibull cumulative distribution function (modeling the relative humidity and frequency effects). This empirical model was validated by using our iron manganite (FeMnO3) thick film measurement data. The reduction of impedance of thick film samples with change in relative humidity in the range 30-90% was measured in a temperature and climatic chamber in the frequency range 42 Hz – 1 MHz at three ambient/working temperatures (25, 50 and 75 C). The obtained experimental data was successfully fitted using the specially tailored empirical model. Application of this model enables prediction of the iron manganite sensor performance for different temperatures both within the confines of the analyzed temperature range (interpolation) and outside of it (extrapolation). Future development will include applying this model to analyzing the temperature influence on relative humidity sensing for other metal oxide sensing materials that have shown a similar dependence and in a wider ambient temperature range.
PB  - IEEE
C3  - Proceedings of the 46th International Spring Seminar on Electronics Technology (ISSE), May 10-14, 2023,Timisoara, Romania
T1  - Modeling the effect of temperature on relative humidity sensing
SP  - 1-6
DO  - 10.1109/ISSE57496.2023.10168734
ER  - 

@conference{
author = "Nikolić, Maria Vesna and Mastilović, Sreten",
year = "2023",
abstract = "In this work we have established a mathematical function to model the influence of the ambient temperature, relative humidity and frequency on the change of impedance. The proposed empirical description is a combination of the power function (modeling the temperature effect) and a reverse-sigmoid function inspired by the three-parameter Weibull cumulative distribution function (modeling the relative humidity and frequency effects). This empirical model was validated by using our iron manganite (FeMnO3) thick film measurement data. The reduction of impedance of thick film samples with change in relative humidity in the range 30-90% was measured in a temperature and climatic chamber in the frequency range 42 Hz – 1 MHz at three ambient/working temperatures (25, 50 and 75 C). The obtained experimental data was successfully fitted using the specially tailored empirical model. Application of this model enables prediction of the iron manganite sensor performance for different temperatures both within the confines of the analyzed temperature range (interpolation) and outside of it (extrapolation). Future development will include applying this model to analyzing the temperature influence on relative humidity sensing for other metal oxide sensing materials that have shown a similar dependence and in a wider ambient temperature range.",
publisher = "IEEE",
journal = "Proceedings of the 46th International Spring Seminar on Electronics Technology (ISSE), May 10-14, 2023,Timisoara, Romania",
title = "Modeling the effect of temperature on relative humidity sensing",
pages = "1-6",
doi = "10.1109/ISSE57496.2023.10168734"
}

Nikolić, M. V.,& Mastilović, S.. (2023). Modeling the effect of temperature on relative humidity sensing. in Proceedings of the 46th International Spring Seminar on Electronics Technology (ISSE), May 10-14, 2023,Timisoara, Romania
IEEE., 1-6.
https://doi.org/10.1109/ISSE57496.2023.10168734

Nikolić MV, Mastilović S. Modeling the effect of temperature on relative humidity sensing. in Proceedings of the 46th International Spring Seminar on Electronics Technology (ISSE), May 10-14, 2023,Timisoara, Romania. 2023;:1-6.
doi:10.1109/ISSE57496.2023.10168734 .

Nikolić, Maria Vesna, Mastilović, Sreten, "Modeling the effect of temperature on relative humidity sensing" in Proceedings of the 46th International Spring Seminar on Electronics Technology (ISSE), May 10-14, 2023,Timisoara, Romania (2023):1-6,
https://doi.org/10.1109/ISSE57496.2023.10168734 . .

TY  - CHAP
AU  - Nikolić, Maria Vesna
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1730
AB  - Spinel ferrites are a widely investigated and applied class of materials with a cubic spinel lattice structure. Their unique multifunctional properties (magnetic characteristics, tunable shape/size, large number of active surface sites, high values of specific surface area, good chemical stability, and possibilities for enhancing properties through surface modification) influenced by the synthesis procedure make them attractive for biomedical applications as magnetic nanoparticles in drug delivery to a set target, magnetic hyperthermia, tissue engineering, magnetic extraction of biological components and magnetic diagnostics. In this review, we give an overview of up-to-date synthesis procedures for obtaining magnetic spinel nanoparticles and nanocomposites with optimal properties for biomedical applications.
PB  - Materials Research Foundations
T2  - Magnetic Nanoparticles for Biomedical Applications
T1  - Magnetic spinel ferrite nanoparticles from synthesis to biomedical applications
EP  - 75
SP  - 41
VL  - 143
DO  - 10.21741/9781644902335-2
ER  - 

@inbook{
author = "Nikolić, Maria Vesna",
year = "2023",
abstract = "Spinel ferrites are a widely investigated and applied class of materials with a cubic spinel lattice structure. Their unique multifunctional properties (magnetic characteristics, tunable shape/size, large number of active surface sites, high values of specific surface area, good chemical stability, and possibilities for enhancing properties through surface modification) influenced by the synthesis procedure make them attractive for biomedical applications as magnetic nanoparticles in drug delivery to a set target, magnetic hyperthermia, tissue engineering, magnetic extraction of biological components and magnetic diagnostics. In this review, we give an overview of up-to-date synthesis procedures for obtaining magnetic spinel nanoparticles and nanocomposites with optimal properties for biomedical applications.",
publisher = "Materials Research Foundations",
journal = "Magnetic Nanoparticles for Biomedical Applications",
booktitle = "Magnetic spinel ferrite nanoparticles from synthesis to biomedical applications",
pages = "75-41",
volume = "143",
doi = "10.21741/9781644902335-2"
}

Nikolić, M. V.. (2023). Magnetic spinel ferrite nanoparticles from synthesis to biomedical applications. in Magnetic Nanoparticles for Biomedical Applications
Materials Research Foundations., 143, 41-75.
https://doi.org/10.21741/9781644902335-2

Nikolić MV. Magnetic spinel ferrite nanoparticles from synthesis to biomedical applications. in Magnetic Nanoparticles for Biomedical Applications. 2023;143:41-75.
doi:10.21741/9781644902335-2 .

Nikolić, Maria Vesna, "Magnetic spinel ferrite nanoparticles from synthesis to biomedical applications" in Magnetic Nanoparticles for Biomedical Applications, 143 (2023):41-75,
https://doi.org/10.21741/9781644902335-2 . .

TY  - JOUR
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Z
AU  - Rakočević, Lazar
AU  - Pavlović, Vera P.
AU  - Ammar, Souad
AU  - Vujancevic, Jelena
AU  - Nikolić, Maria Vesna
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1615
AB  - Temperature- and humidity-sensing properties were evaluated of NixMg1-x spinel ferrites (0 ≤ x ≤ 1) synthesized by a sol-gel combustion method using citric acid as fuel and nitrate ions as oxidizing agents. After the exothermic reaction, amorphous powders were calcined at 700 °C   ollowed by characterization with XRD, FTIR, XPS, EDS and Raman spectroscopy and FESEM 
 icroscopy. Synthesized powders were tested as humidity- and temperature-sensing materials in the form of thick films on interdigitated electrodes on alumina substrate in a climatic chamber. The physicochemical investigation of synthesized materials revealed a cubic spinel Fd3m phase, nanosized but agglomerated particles with a partially to completely inverse spinel structure with increasing Ni content. Ni0.1Mg0.9Fe2O4 showed the highest material constant (B30,90) value of 3747 K and temperature sensitivity (α) of −4.08%/K compared to pure magnesium ferrite (B30,90 value of 3426 K and α of −3.73%/K) and the highest average sensitivity towards humidity of 922 kΩ/%RH in the relative humidity (RH) range of 40–90% at the working temperature of 25 °C.
PB  - MDPI (Basel, Switzerland)
T2  - Chemosensors
T1  - Humidity and Temperature Sensing of Mixed Nickel–Magnesium Spinel Ferrites
IS  - 1
SP  - 34
VL  - 11
DO  - https://doi.org/10.3390/chemosensors11010034
ER  - 

@article{
author = "Dojčinović, Milena and Vasiljević, Zorka Z and Rakočević, Lazar and Pavlović, Vera P. and Ammar, Souad and Vujancevic, Jelena and Nikolić, Maria Vesna",
year = "2023",
abstract = "Temperature- and humidity-sensing properties were evaluated of NixMg1-x spinel ferrites (0 ≤ x ≤ 1) synthesized by a sol-gel combustion method using citric acid as fuel and nitrate ions as oxidizing agents. After the exothermic reaction, amorphous powders were calcined at 700 °C   ollowed by characterization with XRD, FTIR, XPS, EDS and Raman spectroscopy and FESEM 
 icroscopy. Synthesized powders were tested as humidity- and temperature-sensing materials in the form of thick films on interdigitated electrodes on alumina substrate in a climatic chamber. The physicochemical investigation of synthesized materials revealed a cubic spinel Fd3m phase, nanosized but agglomerated particles with a partially to completely inverse spinel structure with increasing Ni content. Ni0.1Mg0.9Fe2O4 showed the highest material constant (B30,90) value of 3747 K and temperature sensitivity (α) of −4.08%/K compared to pure magnesium ferrite (B30,90 value of 3426 K and α of −3.73%/K) and the highest average sensitivity towards humidity of 922 kΩ/%RH in the relative humidity (RH) range of 40–90% at the working temperature of 25 °C.",
publisher = "MDPI (Basel, Switzerland)",
journal = "Chemosensors",
title = "Humidity and Temperature Sensing of Mixed Nickel–Magnesium Spinel Ferrites",
number = "1",
pages = "34",
volume = "11",
doi = "https://doi.org/10.3390/chemosensors11010034"
}

Dojčinović, M., Vasiljević, Z. Z., Rakočević, L., Pavlović, V. P., Ammar, S., Vujancevic, J.,& Nikolić, M. V.. (2023). Humidity and Temperature Sensing of Mixed Nickel–Magnesium Spinel Ferrites. in Chemosensors
MDPI (Basel, Switzerland)., 11(1), 34.
https://doi.org/https://doi.org/10.3390/chemosensors11010034

Dojčinović M, Vasiljević ZZ, Rakočević L, Pavlović VP, Ammar S, Vujancevic J, Nikolić MV. Humidity and Temperature Sensing of Mixed Nickel–Magnesium Spinel Ferrites. in Chemosensors. 2023;11(1):34.
doi:https://doi.org/10.3390/chemosensors11010034 .

Dojčinović, Milena, Vasiljević, Zorka Z, Rakočević, Lazar, Pavlović, Vera P., Ammar, Souad, Vujancevic, Jelena, Nikolić, Maria Vesna, "Humidity and Temperature Sensing of Mixed Nickel–Magnesium Spinel Ferrites" in Chemosensors, 11, no. 1 (2023):34,
https://doi.org/https://doi.org/10.3390/chemosensors11010034 . .

TY  - JOUR
AU  - Ahmetović, Sanita
AU  - Vasiljević, Zorka Z
AU  - Rajić, Vladimir
AU  - Bartolić, Dragana
AU  - Novaković, Mirjana
AU  - Tadić, Nenad B.
AU  - Cvjetićanin, Nikola
AU  - Nikolić, Maria Vesna
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1578
AB  - Pure and samarium (Sm3+) - or zirconium (Zr4+)-doped TiO2 nanofibers were synthesized by  electro- 
spinning method followed by calcination at 500 °C for 1 h. As-spun fibers were smooth, straight and 
continuous, whilst EDS analysis confirmed the fiber composition and incorporation  of  dopants  in  
the  fibers. Doping with Sm3+ and Zr4+ greatly inhibited the phase transformation of anatase to 
rutile, by surrounding of Sm3+ ions through formation of Ti-O-Sm bonds  and  by  replacement  of  
Ti4+  ions  with  larger Zr4+ ions. This was confirmed by HRTEM and SAED analysis. The size of 
nanofibers was determined to be 133 nm, 175 nm and 155 nm for pure, (0.5%)Sm3+:TiO2 and 
(1%)Zr4+:TiO2, respectively. After  cal- cination, TiO2 crystal lattice with interplanar spacing of 
0.353 nm of (101) crystal  plane  was not  significantly disturbed by Sm doping whilst  crystal  
lattice  spacing  of  0.357  nm  of  (101)  planes  of anatase  phase  in  case  TiO2:1.0%Zr4+,  
significantly  differs  from  the  value  of  pure  TiO2   (0.352  nm),  thus implying that Zr was 
doped into substitutional  sites  of  the  TiO2  lattice.  The  indirect  band  gaps  were 
calculated to be in the range  3.07–3.24  eV.  TiO2:0.5%Sm3+ and  TiO2:1.0%Zr4+ exhibited  higher  
specific surface area, of 47.1  and 59.4 m2/g, respectively, than pure TiO2  fibers (19.7 m2/g). 
Effects of Sm3+ and Zr4+ dopant content on the photodegradation efficiency of methylene blue (MB) 
were studied. TiO2:0.5%Sm3+ and TiO2:1.0%Zr4+ nanofibers have shown  the  highest  photocatalytic  
activity  of  97%  and 98%  with  constant  rates  0.01768  min−1  and  0.01939  min−1,  
respectively,  within180  min irradiation under
visible light.
PB  - Elsevier
T2  - Journal of Alloys and Compounds
T1  - Examination of the doping effects of samarium (Sm3+) and zirconium (Zr4+) on the photocatalytic  activity of TiO2  nanofibers
SP  - 167423
VL  - 930
DO  - 10.1016/j.jallcom.2022.167423
ER  - 

@article{
author = "Ahmetović, Sanita and Vasiljević, Zorka Z and Rajić, Vladimir and Bartolić, Dragana and Novaković, Mirjana and Tadić, Nenad B. and Cvjetićanin, Nikola and Nikolić, Maria Vesna",
year = "2023",
abstract = "Pure and samarium (Sm3+) - or zirconium (Zr4+)-doped TiO2 nanofibers were synthesized by  electro- 
spinning method followed by calcination at 500 °C for 1 h. As-spun fibers were smooth, straight and 
continuous, whilst EDS analysis confirmed the fiber composition and incorporation  of  dopants  in  
the  fibers. Doping with Sm3+ and Zr4+ greatly inhibited the phase transformation of anatase to 
rutile, by surrounding of Sm3+ ions through formation of Ti-O-Sm bonds  and  by  replacement  of  
Ti4+  ions  with  larger Zr4+ ions. This was confirmed by HRTEM and SAED analysis. The size of 
nanofibers was determined to be 133 nm, 175 nm and 155 nm for pure, (0.5%)Sm3+:TiO2 and 
(1%)Zr4+:TiO2, respectively. After  cal- cination, TiO2 crystal lattice with interplanar spacing of 
0.353 nm of (101) crystal  plane  was not  significantly disturbed by Sm doping whilst  crystal  
lattice  spacing  of  0.357  nm  of  (101)  planes  of anatase  phase  in  case  TiO2:1.0%Zr4+,  
significantly  differs  from  the  value  of  pure  TiO2   (0.352  nm),  thus implying that Zr was 
doped into substitutional  sites  of  the  TiO2  lattice.  The  indirect  band  gaps  were 
calculated to be in the range  3.07–3.24  eV.  TiO2:0.5%Sm3+ and  TiO2:1.0%Zr4+ exhibited  higher  
specific surface area, of 47.1  and 59.4 m2/g, respectively, than pure TiO2  fibers (19.7 m2/g). 
Effects of Sm3+ and Zr4+ dopant content on the photodegradation efficiency of methylene blue (MB) 
were studied. TiO2:0.5%Sm3+ and TiO2:1.0%Zr4+ nanofibers have shown  the  highest  photocatalytic  
activity  of  97%  and 98%  with  constant  rates  0.01768  min−1  and  0.01939  min−1,  
respectively,  within180  min irradiation under
visible light.",
publisher = "Elsevier",
journal = "Journal of Alloys and Compounds",
title = "Examination of the doping effects of samarium (Sm3+) and zirconium (Zr4+) on the photocatalytic  activity of TiO2  nanofibers",
pages = "167423",
volume = "930",
doi = "10.1016/j.jallcom.2022.167423"
}

Ahmetović, S., Vasiljević, Z. Z., Rajić, V., Bartolić, D., Novaković, M., Tadić, N. B., Cvjetićanin, N.,& Nikolić, M. V.. (2023). Examination of the doping effects of samarium (Sm3+) and zirconium (Zr4+) on the photocatalytic  activity of TiO2  nanofibers. in Journal of Alloys and Compounds
Elsevier., 930, 167423.
https://doi.org/10.1016/j.jallcom.2022.167423

Ahmetović S, Vasiljević ZZ, Rajić V, Bartolić D, Novaković M, Tadić NB, Cvjetićanin N, Nikolić MV. Examination of the doping effects of samarium (Sm3+) and zirconium (Zr4+) on the photocatalytic  activity of TiO2  nanofibers. in Journal of Alloys and Compounds. 2023;930:167423.
doi:10.1016/j.jallcom.2022.167423 .

Ahmetović, Sanita, Vasiljević, Zorka Z, Rajić, Vladimir, Bartolić, Dragana, Novaković, Mirjana, Tadić, Nenad B., Cvjetićanin, Nikola, Nikolić, Maria Vesna, "Examination of the doping effects of samarium (Sm3+) and zirconium (Zr4+) on the photocatalytic  activity of TiO2  nanofibers" in Journal of Alloys and Compounds, 930 (2023):167423,
https://doi.org/10.1016/j.jallcom.2022.167423 . .

TY  - CONF
AU  - Vasiljević, Zorka Z
AU  - Vunduk, Jovana
AU  - Dojčinović, Milena
AU  - Bartolić, Dragana
AU  - Ognjanović, Miloš
AU  - Mišković, Goran
AU  - Nikolić, Maria Vesna
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1645
AB  - Metal oxide nanomaterials have gained a lot of attention during last decades due to their potential applications in wastewater treatment, energy storage, sensors, food packaging, etc. To date, these materials have been synthesized by different chemical and physical techniques. However many of them employ environmentally unfriendly solvents and toxic chemical compounds. To tackle this problem, use of renewable biomass such as plants and fungi as reducing or stabilizing agents in green synthesis has been considered as more sustainable option compared to toxic chemical compounds. These biological substances also behave as capping agent, which control the size and the shape of the nanoparticles. In this work, ZnO nanoparticles (NPs) have been prepared via simple, low cost and ecofriendly method using citrus fruit peel and extracts, Agaricus bisporus powder and extract as biological reducing agents. Zinc nitrate and zinc acetate were used as source of zinc ions. Structural and optical properties were investigated by X-ray diffraction analysis (XRD), Zeta potential, Fourier Transform Infrared (FTIR) spectroscopy, UV-visible (UV-vis) spectroscopy and Photoluminescence spectroscopy (PL). Morphological features were characterized by Field Emission Scanning Electron microscopy (FESEM) and High Resolution Transmission Electron Microscopy (HRTEM). Antibacterial and antioxidant activity was tested and evaluated.
PB  - University of Novi Sad, Faculty of Technology Novi Sad
C3  - Abstract book / 2nd International Conference on Advanced Production and Processing 2022, Novi Sad
T1  - GREEN BIOSYNTHESIS OF ZnO NANOPARTICLES USING AGRO-WASTE AND THEIR ANTIBACTERIAL AND ANTIOXIDANT ACTIVITY
SP  - 106
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1645
ER  - 

@conference{
author = "Vasiljević, Zorka Z and Vunduk, Jovana and Dojčinović, Milena and Bartolić, Dragana and Ognjanović, Miloš and Mišković, Goran and Nikolić, Maria Vesna",
year = "2022",
abstract = "Metal oxide nanomaterials have gained a lot of attention during last decades due to their potential applications in wastewater treatment, energy storage, sensors, food packaging, etc. To date, these materials have been synthesized by different chemical and physical techniques. However many of them employ environmentally unfriendly solvents and toxic chemical compounds. To tackle this problem, use of renewable biomass such as plants and fungi as reducing or stabilizing agents in green synthesis has been considered as more sustainable option compared to toxic chemical compounds. These biological substances also behave as capping agent, which control the size and the shape of the nanoparticles. In this work, ZnO nanoparticles (NPs) have been prepared via simple, low cost and ecofriendly method using citrus fruit peel and extracts, Agaricus bisporus powder and extract as biological reducing agents. Zinc nitrate and zinc acetate were used as source of zinc ions. Structural and optical properties were investigated by X-ray diffraction analysis (XRD), Zeta potential, Fourier Transform Infrared (FTIR) spectroscopy, UV-visible (UV-vis) spectroscopy and Photoluminescence spectroscopy (PL). Morphological features were characterized by Field Emission Scanning Electron microscopy (FESEM) and High Resolution Transmission Electron Microscopy (HRTEM). Antibacterial and antioxidant activity was tested and evaluated.",
publisher = "University of Novi Sad, Faculty of Technology Novi Sad",
journal = "Abstract book / 2nd International Conference on Advanced Production and Processing 2022, Novi Sad",
title = "GREEN BIOSYNTHESIS OF ZnO NANOPARTICLES USING AGRO-WASTE AND THEIR ANTIBACTERIAL AND ANTIOXIDANT ACTIVITY",
pages = "106",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1645"
}

Vasiljević, Z. Z., Vunduk, J., Dojčinović, M., Bartolić, D., Ognjanović, M., Mišković, G.,& Nikolić, M. V.. (2022). GREEN BIOSYNTHESIS OF ZnO NANOPARTICLES USING AGRO-WASTE AND THEIR ANTIBACTERIAL AND ANTIOXIDANT ACTIVITY. in Abstract book / 2nd International Conference on Advanced Production and Processing 2022, Novi Sad
University of Novi Sad, Faculty of Technology Novi Sad., 106.
https://hdl.handle.net/21.15107/rcub_rimsi_1645

Vasiljević ZZ, Vunduk J, Dojčinović M, Bartolić D, Ognjanović M, Mišković G, Nikolić MV. GREEN BIOSYNTHESIS OF ZnO NANOPARTICLES USING AGRO-WASTE AND THEIR ANTIBACTERIAL AND ANTIOXIDANT ACTIVITY. in Abstract book / 2nd International Conference on Advanced Production and Processing 2022, Novi Sad. 2022;:106.
https://hdl.handle.net/21.15107/rcub_rimsi_1645 .

Vasiljević, Zorka Z, Vunduk, Jovana, Dojčinović, Milena, Bartolić, Dragana, Ognjanović, Miloš, Mišković, Goran, Nikolić, Maria Vesna, "GREEN BIOSYNTHESIS OF ZnO NANOPARTICLES USING AGRO-WASTE AND THEIR ANTIBACTERIAL AND ANTIOXIDANT ACTIVITY" in Abstract book / 2nd International Conference on Advanced Production and Processing 2022, Novi Sad (2022):106,
https://hdl.handle.net/21.15107/rcub_rimsi_1645 .

TY  - CONF
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Z
AU  - Tadic, Nenad
AU  - Spreitzer, Matjaz
AU  - Rakočević, Lazar
AU  - Nikolić, Maria Vesna
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1618
AB  - Nickel-manganite is a versatile material used in many technology applications. One of the established uses is as a supercapacitor electrode. The advantage of this type of material is the abundance of required metals, compared to noble metals, the synthesis methods' simplicity, and high redox activity. Metal-oxide battery materials are usually combined with activated carbon to enhance the specific surface area and add to energy storage capacity via surface charge accumulation. In the current work, nickel manganite was synthesized via the sol-gel combustion synthesis method with glycine as fuel and nitrate ions as oxidizers. The post-combustion amorphous powder was calcined at temperatures between 300 and 800 °C. Powders were structurally characterized. Obtained materials were tested as energy storage electrodes in a three-electrode cell setup in 6 M KOH aqueous solution as electrolyte. Methods embedded in electrochemical characterization were cyclic voltammetry (CV), electric impedance spectroscopy (EIS) and constant current chronopotentiometry at different current densities to obtain galvanostatic charge-discharge (GCD) curves. Results show considerable charge storage activity, which can be ascribed to oxido reduction reactions of manganese ions and charge accumulation on the surface of the activated carbon.
PB  - Serbian Academy of Sciences and Arts
C3  - SECOND INTERNATIONAL CONFERENCE ELMINA 2022 Program and Book of Abstracts Publisher:
T1  - Nickel manganite-carbonized alginate composite for use as energy storage electrodes
EP  - 171
SP  - 170
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1618
ER  - 

@conference{
author = "Dojčinović, Milena and Vasiljević, Zorka Z and Tadic, Nenad and Spreitzer, Matjaz and Rakočević, Lazar and Nikolić, Maria Vesna",
year = "2022",
abstract = "Nickel-manganite is a versatile material used in many technology applications. One of the established uses is as a supercapacitor electrode. The advantage of this type of material is the abundance of required metals, compared to noble metals, the synthesis methods' simplicity, and high redox activity. Metal-oxide battery materials are usually combined with activated carbon to enhance the specific surface area and add to energy storage capacity via surface charge accumulation. In the current work, nickel manganite was synthesized via the sol-gel combustion synthesis method with glycine as fuel and nitrate ions as oxidizers. The post-combustion amorphous powder was calcined at temperatures between 300 and 800 °C. Powders were structurally characterized. Obtained materials were tested as energy storage electrodes in a three-electrode cell setup in 6 M KOH aqueous solution as electrolyte. Methods embedded in electrochemical characterization were cyclic voltammetry (CV), electric impedance spectroscopy (EIS) and constant current chronopotentiometry at different current densities to obtain galvanostatic charge-discharge (GCD) curves. Results show considerable charge storage activity, which can be ascribed to oxido reduction reactions of manganese ions and charge accumulation on the surface of the activated carbon.",
publisher = "Serbian Academy of Sciences and Arts",
journal = "SECOND INTERNATIONAL CONFERENCE ELMINA 2022 Program and Book of Abstracts Publisher:",
title = "Nickel manganite-carbonized alginate composite for use as energy storage electrodes",
pages = "171-170",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1618"
}

Dojčinović, M., Vasiljević, Z. Z., Tadic, N., Spreitzer, M., Rakočević, L.,& Nikolić, M. V.. (2022). Nickel manganite-carbonized alginate composite for use as energy storage electrodes. in SECOND INTERNATIONAL CONFERENCE ELMINA 2022 Program and Book of Abstracts Publisher:
Serbian Academy of Sciences and Arts., 170-171.
https://hdl.handle.net/21.15107/rcub_rimsi_1618

Dojčinović M, Vasiljević ZZ, Tadic N, Spreitzer M, Rakočević L, Nikolić MV. Nickel manganite-carbonized alginate composite for use as energy storage electrodes. in SECOND INTERNATIONAL CONFERENCE ELMINA 2022 Program and Book of Abstracts Publisher:. 2022;:170-171.
https://hdl.handle.net/21.15107/rcub_rimsi_1618 .

Dojčinović, Milena, Vasiljević, Zorka Z, Tadic, Nenad, Spreitzer, Matjaz, Rakočević, Lazar, Nikolić, Maria Vesna, "Nickel manganite-carbonized alginate composite for use as energy storage electrodes" in SECOND INTERNATIONAL CONFERENCE ELMINA 2022 Program and Book of Abstracts Publisher: (2022):170-171,
https://hdl.handle.net/21.15107/rcub_rimsi_1618 .

TY  - CONF
AU  - Nikolić, Maria Vesna
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1742
AB  - The Internet of Things (IoT) represents a multi-layer
technology connecting diverse hardware (smart appliances,
smart gadgets, and wearable, biocompatible, and mobile
consumer devices) by middleware to the cloud of things
(CoT). It is changing how electronics interface with our
physical world in terms of sensing, information display and
communication. Gas sensors and sensor nodes are a vital
component of the IoT. Modern electronic systems are
flexible, transparent, biocompatible and wearable. Semiconducting metal oxides are earth
abundant multifunctional materials. Their multifunctionality stems from their complex and
widely varied electronic structure and properties. They include a wide range of band gaps,
high surface activity, and electrical properties making them the subject of continuous
research, especially in the form of nanoparticles for application in sensors, optoelectronics
and electronic devices. Metal oxides are stable materials, easy to synthesize and process. In
nanostructure form they show a wide range of enhanced properties, such as a suitable band
gap, conduction properties and confined conduction pathways for photoelectric electronic
devices. They are excellent candidates, in crystalline or amorphous form, for optoelectronic
devices, such as flat panel displays, solar cells, organic light-emitting diode displays (OLEDs)
and emerging flexible and transparent electronics, as they can exhibit high electrical
performance and excellent visible range transparency. The high growing demand for flexible
electronics requires low temperature and high-throughput synthesis of oxide thin films on
flexible plastic substrates. High sensitivity, fast response/recovery and good selectivity are
generally required of a good sensing material. Metal oxides still remain the first choice for
application in sensors, especially gas sensors due to their ease of fabrication, low cost, high
sensitivity, and stability. Some of their disadvantages are low selectivity and high operating
temperature. Over time commercially produced metal oxide gas sensors have reduced in size
being produced in different technologies, starting with tube-type sensors in the eighties of the
last century, through screen-printed sensors produced in the nineties and completing with
state-of-the art micro-electro-mechanical system (MEMS) sensors produced today.
Development of low cost, reduced power consumption and reliable sensing devices for the
detection of gases for environmental and industrial applications, especially at room
temperature remains a significant scientific and technological challenge.
PB  - Technische Universität Wien Getreidemarkt 9, A-1060 Wien, Österreich
PB  - Eugen G. Leuze Verlag Karlstraße 4, D-88348 Bad Saulgau, Germany www.leuze-verlag.de
C3  - 45th International Spring Seminar on Electronics Technology, May 11-15, 2022, Vienna, Austria
T1  - Semicondcuting metal oxide nanoparticles in sensors, optoelectronics and electronic devices
SP  - 13
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1742
ER  - 

@conference{
author = "Nikolić, Maria Vesna",
year = "2022",
abstract = "The Internet of Things (IoT) represents a multi-layer
technology connecting diverse hardware (smart appliances,
smart gadgets, and wearable, biocompatible, and mobile
consumer devices) by middleware to the cloud of things
(CoT). It is changing how electronics interface with our
physical world in terms of sensing, information display and
communication. Gas sensors and sensor nodes are a vital
component of the IoT. Modern electronic systems are
flexible, transparent, biocompatible and wearable. Semiconducting metal oxides are earth
abundant multifunctional materials. Their multifunctionality stems from their complex and
widely varied electronic structure and properties. They include a wide range of band gaps,
high surface activity, and electrical properties making them the subject of continuous
research, especially in the form of nanoparticles for application in sensors, optoelectronics
and electronic devices. Metal oxides are stable materials, easy to synthesize and process. In
nanostructure form they show a wide range of enhanced properties, such as a suitable band
gap, conduction properties and confined conduction pathways for photoelectric electronic
devices. They are excellent candidates, in crystalline or amorphous form, for optoelectronic
devices, such as flat panel displays, solar cells, organic light-emitting diode displays (OLEDs)
and emerging flexible and transparent electronics, as they can exhibit high electrical
performance and excellent visible range transparency. The high growing demand for flexible
electronics requires low temperature and high-throughput synthesis of oxide thin films on
flexible plastic substrates. High sensitivity, fast response/recovery and good selectivity are
generally required of a good sensing material. Metal oxides still remain the first choice for
application in sensors, especially gas sensors due to their ease of fabrication, low cost, high
sensitivity, and stability. Some of their disadvantages are low selectivity and high operating
temperature. Over time commercially produced metal oxide gas sensors have reduced in size
being produced in different technologies, starting with tube-type sensors in the eighties of the
last century, through screen-printed sensors produced in the nineties and completing with
state-of-the art micro-electro-mechanical system (MEMS) sensors produced today.
Development of low cost, reduced power consumption and reliable sensing devices for the
detection of gases for environmental and industrial applications, especially at room
temperature remains a significant scientific and technological challenge.",
publisher = "Technische Universität Wien Getreidemarkt 9, A-1060 Wien, Österreich, Eugen G. Leuze Verlag Karlstraße 4, D-88348 Bad Saulgau, Germany www.leuze-verlag.de",
journal = "45th International Spring Seminar on Electronics Technology, May 11-15, 2022, Vienna, Austria",
title = "Semicondcuting metal oxide nanoparticles in sensors, optoelectronics and electronic devices",
pages = "13",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1742"
}

Nikolić, M. V.. (2022). Semicondcuting metal oxide nanoparticles in sensors, optoelectronics and electronic devices. in 45th International Spring Seminar on Electronics Technology, May 11-15, 2022, Vienna, Austria
Technische Universität Wien Getreidemarkt 9, A-1060 Wien, Österreich., 13.
https://hdl.handle.net/21.15107/rcub_rimsi_1742

Nikolić MV. Semicondcuting metal oxide nanoparticles in sensors, optoelectronics and electronic devices. in 45th International Spring Seminar on Electronics Technology, May 11-15, 2022, Vienna, Austria. 2022;:13.
https://hdl.handle.net/21.15107/rcub_rimsi_1742 .

Nikolić, Maria Vesna, "Semicondcuting metal oxide nanoparticles in sensors, optoelectronics and electronic devices" in 45th International Spring Seminar on Electronics Technology, May 11-15, 2022, Vienna, Austria (2022):13,
https://hdl.handle.net/21.15107/rcub_rimsi_1742 .

TY  - CONF
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Z
AU  - Tadic, Nenad
AU  - Krstic, Jugoslav
AU  - Nikolić, Maria Vesna
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1617
AB  - Transition metal oxides (TMOs) are promising materials because of their specific properties enabling their application in energy solutions, such as their pseudocapacitive behavior enabling utilization as electrode materials in supercapacitors. Activated carbon is a material well known as an electric double layer capacitor (EDLC). Bringing together the two different capacitor materials- TMOs as pseudocapacitors and carbon materials as EDL capacitors is the goal for generating future generation supercapacitors. Nickel manganite is a material of interest because of various oxidation states of manganese which provide its reactivity in oxidoreduction reactions, enhancing the pseudocapacitive behavior. Herein, we synthesized nano-sized nickel manganite by a sol-gel combustion synthesis process using glycine as fuel and subsequent calcination process. The structure and morphology of synthesized material was investigated via XRD, FESEM, and FTIR spectroscopy. Specific surface area and was determined from measured nitrogen 
 desorption/desorption isotherms. Activated carbon was obtained by pyrolytic carbonization of alginate hydrogel in nitrogen atmosphere and activation with KOH. The material was combined with synthesized NiMn2O4 nanopowder and tested as supercapacitor electrode. The second alternative was incorporating NiMn2O4 powder into alginate hydrogel, followed by pyrolysis in nitrogen atmosphere to obtain a NiMn2O4 -activated
carbon composite. The obtained materials were electrochemically characterized with cyclic voltammetry (LV) and galvanostatic chronopotentiometry to get galvanostatic charge-discharge curves. We calculated high specific capacitance values ranging to several hundred F/g, showing our hybrid material is a promising electrode in a supercapacitor system.
PB  - Krakow : Agencja Reklamowa EURO GRAPHIC
PB  - Krakow : Polskie Towarzystwo Ceramiczne
C3  - Abstract Book / Ceramics in Europe 2022, Krakow, 10-14 July, 2022
T1  - Alginate-derived activated carbon hybridized with NiMn2O4 for use in supercapacitors
SP  - 404
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1617
ER  - 

@conference{
author = "Dojčinović, Milena and Vasiljević, Zorka Z and Tadic, Nenad and Krstic, Jugoslav and Nikolić, Maria Vesna",
year = "2022",
abstract = "Transition metal oxides (TMOs) are promising materials because of their specific properties enabling their application in energy solutions, such as their pseudocapacitive behavior enabling utilization as electrode materials in supercapacitors. Activated carbon is a material well known as an electric double layer capacitor (EDLC). Bringing together the two different capacitor materials- TMOs as pseudocapacitors and carbon materials as EDL capacitors is the goal for generating future generation supercapacitors. Nickel manganite is a material of interest because of various oxidation states of manganese which provide its reactivity in oxidoreduction reactions, enhancing the pseudocapacitive behavior. Herein, we synthesized nano-sized nickel manganite by a sol-gel combustion synthesis process using glycine as fuel and subsequent calcination process. The structure and morphology of synthesized material was investigated via XRD, FESEM, and FTIR spectroscopy. Specific surface area and was determined from measured nitrogen 
 desorption/desorption isotherms. Activated carbon was obtained by pyrolytic carbonization of alginate hydrogel in nitrogen atmosphere and activation with KOH. The material was combined with synthesized NiMn2O4 nanopowder and tested as supercapacitor electrode. The second alternative was incorporating NiMn2O4 powder into alginate hydrogel, followed by pyrolysis in nitrogen atmosphere to obtain a NiMn2O4 -activated
carbon composite. The obtained materials were electrochemically characterized with cyclic voltammetry (LV) and galvanostatic chronopotentiometry to get galvanostatic charge-discharge curves. We calculated high specific capacitance values ranging to several hundred F/g, showing our hybrid material is a promising electrode in a supercapacitor system.",
publisher = "Krakow : Agencja Reklamowa EURO GRAPHIC, Krakow : Polskie Towarzystwo Ceramiczne",
journal = "Abstract Book / Ceramics in Europe 2022, Krakow, 10-14 July, 2022",
title = "Alginate-derived activated carbon hybridized with NiMn2O4 for use in supercapacitors",
pages = "404",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1617"
}

Dojčinović, M., Vasiljević, Z. Z., Tadic, N., Krstic, J.,& Nikolić, M. V.. (2022). Alginate-derived activated carbon hybridized with NiMn2O4 for use in supercapacitors. in Abstract Book / Ceramics in Europe 2022, Krakow, 10-14 July, 2022
Krakow : Agencja Reklamowa EURO GRAPHIC., 404.
https://hdl.handle.net/21.15107/rcub_rimsi_1617

Dojčinović M, Vasiljević ZZ, Tadic N, Krstic J, Nikolić MV. Alginate-derived activated carbon hybridized with NiMn2O4 for use in supercapacitors. in Abstract Book / Ceramics in Europe 2022, Krakow, 10-14 July, 2022. 2022;:404.
https://hdl.handle.net/21.15107/rcub_rimsi_1617 .

Dojčinović, Milena, Vasiljević, Zorka Z, Tadic, Nenad, Krstic, Jugoslav, Nikolić, Maria Vesna, "Alginate-derived activated carbon hybridized with NiMn2O4 for use in supercapacitors" in Abstract Book / Ceramics in Europe 2022, Krakow, 10-14 July, 2022 (2022):404,
https://hdl.handle.net/21.15107/rcub_rimsi_1617 .

TY  - CONF
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Z
AU  - Pavlović, Vera P.
AU  - Vujančević, Jelena
AU  - Tadić, Nenad B.
AU  - Nikolić, Maria Vesna
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13642
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1611
AB  - Problems that countries all over the world have in common are dependence of economy and energy production on fossil fuels. There is a growing need for energy production and storage routes that are safe for the environment, renewable, efficient and cheap. One of the directions in which science is moving forward is discovering materials suitable for use in batteries and supercapacitors to improve their operating potential, electrical capacity or biocompatibility. The objective is also to synthesize materials for batteries or supercapacitors that are cheap, consist of earth abundant elements and have high electrochemical activity.In this work, mixed nickel-magnesium ferrites NixMg1−xFe2O4, with x being 0, 0.1, 0.3, 0.5, 0.7, 0.9 and 1, were synthesized via sol-gel combustion synthesis with citric acid used as fuel and nitrate ions used as oxidizing agents. Combusted powders were calcined at 700 °C. The structure and morphology of the powders were characterized with X-ray diffraction method (XRD), field emission scanning electron microscopy (FESEM), Raman and FTIR spectroscopy. The band gap was calculated by using UV/Vis diffuse reflectance spectroscopy (DRS). Samples were cast on nickel foam and tested as energy storage materials in a three-electrode setup in 3 M KOH aqueous solution as electrolyte. The methods used were cyclic voltammetry (CV) and constant current chronopotentiometry to obtain galvanostatic charge-discharge (GCD) curves. Results show that all of the synthesized materials show battery-type charge storage in alkaline electrolyte due to the formation of metal cation oxyhydroxides. With increasing nickel content, electrochemical activity drops. The highest value of capacity, 34.3 mA h g-1 at the current density of 500 mA g-1 is ascribed to magnesium ferrite, MgFe2O4.
PB  - Belgrade : University of Belgrade, Faculty of Physical Chemistry
C3  - Contemporary batteries and supercapacitors : COIN2022 : program and book of abstracts / International Symposium Belgrade, June 1-2, 2022
T1  - Mixed Ni-Mg Spinel Ferrites Used as Materials for Charge Storage Electrodes
EP  - 47
SP  - 47
UR  - https://hdl.handle.net/21.15107/rcub_dais_13642
ER  - 

@conference{
author = "Dojčinović, Milena and Vasiljević, Zorka Z and Pavlović, Vera P. and Vujančević, Jelena and Tadić, Nenad B. and Nikolić, Maria Vesna",
year = "2022",
abstract = "Problems that countries all over the world have in common are dependence of economy and energy production on fossil fuels. There is a growing need for energy production and storage routes that are safe for the environment, renewable, efficient and cheap. One of the directions in which science is moving forward is discovering materials suitable for use in batteries and supercapacitors to improve their operating potential, electrical capacity or biocompatibility. The objective is also to synthesize materials for batteries or supercapacitors that are cheap, consist of earth abundant elements and have high electrochemical activity.In this work, mixed nickel-magnesium ferrites NixMg1−xFe2O4, with x being 0, 0.1, 0.3, 0.5, 0.7, 0.9 and 1, were synthesized via sol-gel combustion synthesis with citric acid used as fuel and nitrate ions used as oxidizing agents. Combusted powders were calcined at 700 °C. The structure and morphology of the powders were characterized with X-ray diffraction method (XRD), field emission scanning electron microscopy (FESEM), Raman and FTIR spectroscopy. The band gap was calculated by using UV/Vis diffuse reflectance spectroscopy (DRS). Samples were cast on nickel foam and tested as energy storage materials in a three-electrode setup in 3 M KOH aqueous solution as electrolyte. The methods used were cyclic voltammetry (CV) and constant current chronopotentiometry to obtain galvanostatic charge-discharge (GCD) curves. Results show that all of the synthesized materials show battery-type charge storage in alkaline electrolyte due to the formation of metal cation oxyhydroxides. With increasing nickel content, electrochemical activity drops. The highest value of capacity, 34.3 mA h g-1 at the current density of 500 mA g-1 is ascribed to magnesium ferrite, MgFe2O4.",
publisher = "Belgrade : University of Belgrade, Faculty of Physical Chemistry",
journal = "Contemporary batteries and supercapacitors : COIN2022 : program and book of abstracts / International Symposium Belgrade, June 1-2, 2022",
title = "Mixed Ni-Mg Spinel Ferrites Used as Materials for Charge Storage Electrodes",
pages = "47-47",
url = "https://hdl.handle.net/21.15107/rcub_dais_13642"
}

Dojčinović, M., Vasiljević, Z. Z., Pavlović, V. P., Vujančević, J., Tadić, N. B.,& Nikolić, M. V.. (2022). Mixed Ni-Mg Spinel Ferrites Used as Materials for Charge Storage Electrodes. in Contemporary batteries and supercapacitors : COIN2022 : program and book of abstracts / International Symposium Belgrade, June 1-2, 2022
Belgrade : University of Belgrade, Faculty of Physical Chemistry., 47-47.
https://hdl.handle.net/21.15107/rcub_dais_13642

Dojčinović M, Vasiljević ZZ, Pavlović VP, Vujančević J, Tadić NB, Nikolić MV. Mixed Ni-Mg Spinel Ferrites Used as Materials for Charge Storage Electrodes. in Contemporary batteries and supercapacitors : COIN2022 : program and book of abstracts / International Symposium Belgrade, June 1-2, 2022. 2022;:47-47.
https://hdl.handle.net/21.15107/rcub_dais_13642 .

Dojčinović, Milena, Vasiljević, Zorka Z, Pavlović, Vera P., Vujančević, Jelena, Tadić, Nenad B., Nikolić, Maria Vesna, "Mixed Ni-Mg Spinel Ferrites Used as Materials for Charge Storage Electrodes" in Contemporary batteries and supercapacitors : COIN2022 : program and book of abstracts / International Symposium Belgrade, June 1-2, 2022 (2022):47-47,
https://hdl.handle.net/21.15107/rcub_dais_13642 .

TY  - JOUR
AU  - Rizzoto, Francesco
AU  - Vasiljević, Zorka Z
AU  - Stanojević, Gordana
AU  - Dojčinović, Milena
AU  - Jankovic-Castvan, Ivona
AU  - Vujancevic, Jelena
AU  - Tadic, Nenad
AU  - Branković, Goran
AU  - MAGNIEZ, Aurélie
AU  - Vidic, Jasmina
AU  - Nikolić, Maria Vesna
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1584
AB  - An emerging technology of active packaging enables prolongation of food shelf life by limiting the oxygen transfer and the reactivity of free radicals, which both destruct food freshness. In this work, Fe2TiO5 nanoparticles were synthesized using a modified sol–gel method and evaluated as an enforcement of alginate food packaging film. Pure phase Fe2TiO5 nanoparticles had an average particle size of 44 nm and rhombohedral morphology. Fe2TiO5 nanoparticles induce no cell damage of human Caco-2 epithelial cells and show no inhibitory effect towards growth of a panel of bacterial strains, suggesting good biocompatibility. Films obtained by incorporation of Fe2TiO5 nanoparticles into alginate using the solvent casting method show no migration of iron or titanium ions from films to food simulants again suggesting their safety as a packaging material. Fe2TiO5 nanoparticles also showed strong antioxidant efficiency as determined using the DPPḢ assay, and confirmed further in a preservation test on fresh fruit.
PB  - Elsevier
T2  - Food Chemistry
T1  - Antioxidant and cell-friendly Fe2TiO5 nanoparticles for food packaging application
VL  - 390
DO  - 10.1016/j.foodchem.2022.133198
ER  - 

@article{
author = "Rizzoto, Francesco and Vasiljević, Zorka Z and Stanojević, Gordana and Dojčinović, Milena and Jankovic-Castvan, Ivona and Vujancevic, Jelena and Tadic, Nenad and Branković, Goran and MAGNIEZ, Aurélie and Vidic, Jasmina and Nikolić, Maria Vesna",
year = "2022",
abstract = "An emerging technology of active packaging enables prolongation of food shelf life by limiting the oxygen transfer and the reactivity of free radicals, which both destruct food freshness. In this work, Fe2TiO5 nanoparticles were synthesized using a modified sol–gel method and evaluated as an enforcement of alginate food packaging film. Pure phase Fe2TiO5 nanoparticles had an average particle size of 44 nm and rhombohedral morphology. Fe2TiO5 nanoparticles induce no cell damage of human Caco-2 epithelial cells and show no inhibitory effect towards growth of a panel of bacterial strains, suggesting good biocompatibility. Films obtained by incorporation of Fe2TiO5 nanoparticles into alginate using the solvent casting method show no migration of iron or titanium ions from films to food simulants again suggesting their safety as a packaging material. Fe2TiO5 nanoparticles also showed strong antioxidant efficiency as determined using the DPPḢ assay, and confirmed further in a preservation test on fresh fruit.",
publisher = "Elsevier",
journal = "Food Chemistry",
title = "Antioxidant and cell-friendly Fe2TiO5 nanoparticles for food packaging application",
volume = "390",
doi = "10.1016/j.foodchem.2022.133198"
}

Rizzoto, F., Vasiljević, Z. Z., Stanojević, G., Dojčinović, M., Jankovic-Castvan, I., Vujancevic, J., Tadic, N., Branković, G., MAGNIEZ, A., Vidic, J.,& Nikolić, M. V.. (2022). Antioxidant and cell-friendly Fe2TiO5 nanoparticles for food packaging application. in Food Chemistry
Elsevier., 390.
https://doi.org/10.1016/j.foodchem.2022.133198

Rizzoto F, Vasiljević ZZ, Stanojević G, Dojčinović M, Jankovic-Castvan I, Vujancevic J, Tadic N, Branković G, MAGNIEZ A, Vidic J, Nikolić MV. Antioxidant and cell-friendly Fe2TiO5 nanoparticles for food packaging application. in Food Chemistry. 2022;390.
doi:10.1016/j.foodchem.2022.133198 .

Rizzoto, Francesco, Vasiljević, Zorka Z, Stanojević, Gordana, Dojčinović, Milena, Jankovic-Castvan, Ivona, Vujancevic, Jelena, Tadic, Nenad, Branković, Goran, MAGNIEZ, Aurélie, Vidic, Jasmina, Nikolić, Maria Vesna, "Antioxidant and cell-friendly Fe2TiO5 nanoparticles for food packaging application" in Food Chemistry, 390 (2022),
https://doi.org/10.1016/j.foodchem.2022.133198 . .

TY  - CONF
AU  - Labus, Nebojša J.
AU  - Marković, Smilja
AU  - Nikolić, Maria Vesna
AU  - Rosić, Milena
AU  - Matijašević, Srđan
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13641
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1610
AB  - Sintering and phase transition are often superimposed at dimensional change diagram recorded during heating. Phase transition kinetic is thus hard to deconvolute due to the superposition of the sintering and phase transition dimensional change phenomena. Metastabile perovskite phase ZnTiO3has transition to stabile spinel Zn2TiO4which occurs at 945oC with high kinetic rate. Nano powder with 40 nm particle diameter was pressed uniaxially at 200 MPa pressure without binder to form compact that will be consequently sintered. Dimensional change during heating was monitored using dilatometric thermo-mechanical analyzer TMA model SETSYS Evolution. Lever`s rule was used to calculate amount of the emerging phase during phase transition. The compacted specimens were treated on the nonisothermal schedule up to 1050oC.Sintering phenomenon of the ZnTiO3 nanopowder compact was also recorded up to 900oCwith isothermal holding of 25 minutes where phase transition was avoided due to lower temperature and isothermal holding. Second run heating of the obtained sintered specimens were recorded with the heating schedule of non-isothermal heating up to 1050oC. Kinetic of the phase transition was obtained from dilatograms recorded during sintering and from bulk on the second run heating. Furthermore, phase transition kinetics was obtained by subsequent data subtraction of the sintering curves without phase transition from the dilatation sintering curves containing phase transition. In such a manner complex kinetics of phenomena such as sintering, linear expansion and phase transition recorded as dimensional change during heating brings the recognition of their mutual interconnected relations. Also application of these mathematical operations on dilatometric data leads to the established procedure for the sintering and phase transition data treatment.
PB  - Belgrade : ETRAN Society
PB  - Belgrade : Academic Mind
C3  - Зборник радова / IX међународне конференције ИцЕТРАН и LXVI конференције ЕТРАН, Нови Пазар 6-9. јуна 2022. године = Proceedings / IX International Conference IcETRAN and LXVI ETRAN Conference, Novi Pazar, Serbia, 6-9, June, 2022
T1  - Sintering and Phase Transition of the ZnTiO3 Nano Powder Dilatometric Data Deconvolution
EP  - 486
SP  - 479
UR  - https://hdl.handle.net/21.15107/rcub_dais_13641
ER  - 

@conference{
author = "Labus, Nebojša J. and Marković, Smilja and Nikolić, Maria Vesna and Rosić, Milena and Matijašević, Srđan",
year = "2022",
abstract = "Sintering and phase transition are often superimposed at dimensional change diagram recorded during heating. Phase transition kinetic is thus hard to deconvolute due to the superposition of the sintering and phase transition dimensional change phenomena. Metastabile perovskite phase ZnTiO3has transition to stabile spinel Zn2TiO4which occurs at 945oC with high kinetic rate. Nano powder with 40 nm particle diameter was pressed uniaxially at 200 MPa pressure without binder to form compact that will be consequently sintered. Dimensional change during heating was monitored using dilatometric thermo-mechanical analyzer TMA model SETSYS Evolution. Lever`s rule was used to calculate amount of the emerging phase during phase transition. The compacted specimens were treated on the nonisothermal schedule up to 1050oC.Sintering phenomenon of the ZnTiO3 nanopowder compact was also recorded up to 900oCwith isothermal holding of 25 minutes where phase transition was avoided due to lower temperature and isothermal holding. Second run heating of the obtained sintered specimens were recorded with the heating schedule of non-isothermal heating up to 1050oC. Kinetic of the phase transition was obtained from dilatograms recorded during sintering and from bulk on the second run heating. Furthermore, phase transition kinetics was obtained by subsequent data subtraction of the sintering curves without phase transition from the dilatation sintering curves containing phase transition. In such a manner complex kinetics of phenomena such as sintering, linear expansion and phase transition recorded as dimensional change during heating brings the recognition of their mutual interconnected relations. Also application of these mathematical operations on dilatometric data leads to the established procedure for the sintering and phase transition data treatment.",
publisher = "Belgrade : ETRAN Society, Belgrade : Academic Mind",
journal = "Зборник радова / IX међународне конференције ИцЕТРАН и LXVI конференције ЕТРАН, Нови Пазар 6-9. јуна 2022. године = Proceedings / IX International Conference IcETRAN and LXVI ETRAN Conference, Novi Pazar, Serbia, 6-9, June, 2022",
title = "Sintering and Phase Transition of the ZnTiO3 Nano Powder Dilatometric Data Deconvolution",
pages = "486-479",
url = "https://hdl.handle.net/21.15107/rcub_dais_13641"
}

Labus, N. J., Marković, S., Nikolić, M. V., Rosić, M.,& Matijašević, S.. (2022). Sintering and Phase Transition of the ZnTiO3 Nano Powder Dilatometric Data Deconvolution. in Зборник радова / IX међународне конференције ИцЕТРАН и LXVI конференције ЕТРАН, Нови Пазар 6-9. јуна 2022. године = Proceedings / IX International Conference IcETRAN and LXVI ETRAN Conference, Novi Pazar, Serbia, 6-9, June, 2022
Belgrade : ETRAN Society., 479-486.
https://hdl.handle.net/21.15107/rcub_dais_13641

Labus NJ, Marković S, Nikolić MV, Rosić M, Matijašević S. Sintering and Phase Transition of the ZnTiO3 Nano Powder Dilatometric Data Deconvolution. in Зборник радова / IX међународне конференције ИцЕТРАН и LXVI конференције ЕТРАН, Нови Пазар 6-9. јуна 2022. године = Proceedings / IX International Conference IcETRAN and LXVI ETRAN Conference, Novi Pazar, Serbia, 6-9, June, 2022. 2022;:479-486.
https://hdl.handle.net/21.15107/rcub_dais_13641 .

Labus, Nebojša J., Marković, Smilja, Nikolić, Maria Vesna, Rosić, Milena, Matijašević, Srđan, "Sintering and Phase Transition of the ZnTiO3 Nano Powder Dilatometric Data Deconvolution" in Зборник радова / IX међународне конференције ИцЕТРАН и LXVI конференције ЕТРАН, Нови Пазар 6-9. јуна 2022. године = Proceedings / IX International Conference IcETRAN and LXVI ETRAN Conference, Novi Pazar, Serbia, 6-9, June, 2022 (2022):479-486,
https://hdl.handle.net/21.15107/rcub_dais_13641 .

TY  - CONF
AU  - Vasiljević, Zorka Z
AU  - Dojčinović, Milena
AU  - Vujancevic, Jelena
AU  - Spreitzer, Matjaz
AU  - Kovač, Janez
AU  - Jankovic-Castvan, Ivona
AU  - Bartolić, Dragana
AU  - Markovic, Smilja
AU  - Tadic, Nenad
AU  - Nikolić, Maria Vesna
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2197
AB  - Novel crystalline iron-titanate fibers were synthesized for the first time to the best of our knowledge, through a simple, low cost electrospinning method followed by calcination treatment at different temperatures (500–750 °C for 3 h and at 500 °C for 6 h and at 550 °C for 4 h). The fibers were prepared from a precursor solution containing polyvinylpyrrolidone (PVP), iron(III) nonahydrate, titanium isopropoxide, N,N-Dimethylformamide and ethanol. As spun fibers were smooth, straight, beadless and uniform forming a nonwoven fibrous mat, with an average diameter of ca. 205 nm. Upon calcination in air the PVP matrice was removed and XRD and FTIR analysis showed that the duration of the calcination process, besides the temperature, had a direct influence on phase formation. Pure phase of pseudobrookite was obtained at 600 °C, 500 °C for 6 h and at 550 °C for 4 h. In addition, the morphology of obtained nanofibers was directly affected by the calcination temperature. The surface of fibers obtained after calcination was no longer smooth and the fiber diameter decreased due to complete degradation of PVP. At 700 oC and 750 °C, fibers were thicker which can be attributed to growth of Fe2TiO5 nanoparticles and simultaneous coalescence of small particles. All samples exhibited a type IV nitrogen adsorption isotherm with a type- H3 indicating slit-shaped mesoporous structure. The BET surface areas of 500 oC for 6 h, 550 oC for 4 h and 600 oC for 3 h were estimated to be 62, 38.7 and 33.2 m2/g, respectively.
PB  - University of Novi Sad, Faculty of Technology Novi Sad
C3  - Abstract book/14th ECerS conference for young scientist in ceramics
T1  - INFLUENCE OF CALCINATION TEMPERATURE ON THE STRUCTURE, MORPHOLOGY AND OPTICAL PROPERTIES OF ELECTROSPUN PSEUDOBROOKITE NANOFIBERS
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2197
ER  - 

@conference{
author = "Vasiljević, Zorka Z and Dojčinović, Milena and Vujancevic, Jelena and Spreitzer, Matjaz and Kovač, Janez and Jankovic-Castvan, Ivona and Bartolić, Dragana and Markovic, Smilja and Tadic, Nenad and Nikolić, Maria Vesna",
year = "2021",
abstract = "Novel crystalline iron-titanate fibers were synthesized for the first time to the best of our knowledge, through a simple, low cost electrospinning method followed by calcination treatment at different temperatures (500–750 °C for 3 h and at 500 °C for 6 h and at 550 °C for 4 h). The fibers were prepared from a precursor solution containing polyvinylpyrrolidone (PVP), iron(III) nonahydrate, titanium isopropoxide, N,N-Dimethylformamide and ethanol. As spun fibers were smooth, straight, beadless and uniform forming a nonwoven fibrous mat, with an average diameter of ca. 205 nm. Upon calcination in air the PVP matrice was removed and XRD and FTIR analysis showed that the duration of the calcination process, besides the temperature, had a direct influence on phase formation. Pure phase of pseudobrookite was obtained at 600 °C, 500 °C for 6 h and at 550 °C for 4 h. In addition, the morphology of obtained nanofibers was directly affected by the calcination temperature. The surface of fibers obtained after calcination was no longer smooth and the fiber diameter decreased due to complete degradation of PVP. At 700 oC and 750 °C, fibers were thicker which can be attributed to growth of Fe2TiO5 nanoparticles and simultaneous coalescence of small particles. All samples exhibited a type IV nitrogen adsorption isotherm with a type- H3 indicating slit-shaped mesoporous structure. The BET surface areas of 500 oC for 6 h, 550 oC for 4 h and 600 oC for 3 h were estimated to be 62, 38.7 and 33.2 m2/g, respectively.",
publisher = "University of Novi Sad, Faculty of Technology Novi Sad",
journal = "Abstract book/14th ECerS conference for young scientist in ceramics",
title = "INFLUENCE OF CALCINATION TEMPERATURE ON THE STRUCTURE, MORPHOLOGY AND OPTICAL PROPERTIES OF ELECTROSPUN PSEUDOBROOKITE NANOFIBERS",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2197"
}

Vasiljević, Z. Z., Dojčinović, M., Vujancevic, J., Spreitzer, M., Kovač, J., Jankovic-Castvan, I., Bartolić, D., Markovic, S., Tadic, N.,& Nikolić, M. V.. (2021). INFLUENCE OF CALCINATION TEMPERATURE ON THE STRUCTURE, MORPHOLOGY AND OPTICAL PROPERTIES OF ELECTROSPUN PSEUDOBROOKITE NANOFIBERS. in Abstract book/14th ECerS conference for young scientist in ceramics
University of Novi Sad, Faculty of Technology Novi Sad..
https://hdl.handle.net/21.15107/rcub_rimsi_2197

Vasiljević ZZ, Dojčinović M, Vujancevic J, Spreitzer M, Kovač J, Jankovic-Castvan I, Bartolić D, Markovic S, Tadic N, Nikolić MV. INFLUENCE OF CALCINATION TEMPERATURE ON THE STRUCTURE, MORPHOLOGY AND OPTICAL PROPERTIES OF ELECTROSPUN PSEUDOBROOKITE NANOFIBERS. in Abstract book/14th ECerS conference for young scientist in ceramics. 2021;.
https://hdl.handle.net/21.15107/rcub_rimsi_2197 .

Vasiljević, Zorka Z, Dojčinović, Milena, Vujancevic, Jelena, Spreitzer, Matjaz, Kovač, Janez, Jankovic-Castvan, Ivona, Bartolić, Dragana, Markovic, Smilja, Tadic, Nenad, Nikolić, Maria Vesna, "INFLUENCE OF CALCINATION TEMPERATURE ON THE STRUCTURE, MORPHOLOGY AND OPTICAL PROPERTIES OF ELECTROSPUN PSEUDOBROOKITE NANOFIBERS" in Abstract book/14th ECerS conference for young scientist in ceramics (2021),
https://hdl.handle.net/21.15107/rcub_rimsi_2197 .

TY  - CONF
AU  - Ahmetović, Sanita
AU  - Vasiljević, Zorka Z
AU  - Cvjetićanin, Nikola
AU  - Vujančević, Jelena
AU  - Tadić, Nenad B.
AU  - Pavlović, Vladimir B.
AU  - Nikolić, Maria Vesna
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2154
AB  - Samarium and zirconium-doped TiO2 nanofibers (3 and 5 wt.%) were synthesised by a 
simple modified electrospinning method. The effects of calcination temperature on the size 
of the as-spun doped titania fibers was investigated. As-spun nanofibers were studied and 
characterized through thermal gravimetric analysis (TG-DTA), Fourier Transform Infrared 
Spectroscopy (FTIR) and Scanning electron microscopy (SEM), while the structure and 
morphology of calcined fibers was studied by X-Ray Diffraction (XRD), Field Emission 
Electron Microscopy (FESEM) and spectroscopic techniques (FT-IR and DRS UV-vis). The 
influence of dopant type and amount on the photocatalytic degradation of Methylene blue 
(MB) was investigated.
PB  - Institute of Technical Sciences of SASA  Knez Mihailova 35/IV, 11000 Belgrade, Serbia
C3  - Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia.
T1  - Synthesis of Samarium and Zirconium-doped TiO2 nanofibers with improved photocatalytic activity
SP  - 24/5-2
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2154
ER  - 

@conference{
author = "Ahmetović, Sanita and Vasiljević, Zorka Z and Cvjetićanin, Nikola and Vujančević, Jelena and Tadić, Nenad B. and Pavlović, Vladimir B. and Nikolić, Maria Vesna",
year = "2021",
abstract = "Samarium and zirconium-doped TiO2 nanofibers (3 and 5 wt.%) were synthesised by a 
simple modified electrospinning method. The effects of calcination temperature on the size 
of the as-spun doped titania fibers was investigated. As-spun nanofibers were studied and 
characterized through thermal gravimetric analysis (TG-DTA), Fourier Transform Infrared 
Spectroscopy (FTIR) and Scanning electron microscopy (SEM), while the structure and 
morphology of calcined fibers was studied by X-Ray Diffraction (XRD), Field Emission 
Electron Microscopy (FESEM) and spectroscopic techniques (FT-IR and DRS UV-vis). The 
influence of dopant type and amount on the photocatalytic degradation of Methylene blue 
(MB) was investigated.",
publisher = "Institute of Technical Sciences of SASA  Knez Mihailova 35/IV, 11000 Belgrade, Serbia",
journal = "Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia.",
title = "Synthesis of Samarium and Zirconium-doped TiO2 nanofibers with improved photocatalytic activity",
pages = "24/5-2",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2154"
}

Ahmetović, S., Vasiljević, Z. Z., Cvjetićanin, N., Vujančević, J., Tadić, N. B., Pavlović, V. B.,& Nikolić, M. V.. (2021). Synthesis of Samarium and Zirconium-doped TiO2 nanofibers with improved photocatalytic activity. in Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia.
Institute of Technical Sciences of SASA  Knez Mihailova 35/IV, 11000 Belgrade, Serbia., 24/5-2.
https://hdl.handle.net/21.15107/rcub_rimsi_2154

Ahmetović S, Vasiljević ZZ, Cvjetićanin N, Vujančević J, Tadić NB, Pavlović VB, Nikolić MV. Synthesis of Samarium and Zirconium-doped TiO2 nanofibers with improved photocatalytic activity. in Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia.. 2021;:24/5-2.
https://hdl.handle.net/21.15107/rcub_rimsi_2154 .

Ahmetović, Sanita, Vasiljević, Zorka Z, Cvjetićanin, Nikola, Vujančević, Jelena, Tadić, Nenad B., Pavlović, Vladimir B., Nikolić, Maria Vesna, "Synthesis of Samarium and Zirconium-doped TiO2 nanofibers with improved photocatalytic activity" in Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia. (2021):24/5-2,
https://hdl.handle.net/21.15107/rcub_rimsi_2154 .

TY  - CONF
AU  - Dojčinović, Milena
AU  - Vasiljević, Zorka Z
AU  - Tadić, Nenad B.
AU  - Krstić, Jugoslav B.
AU  - Marković, Smilja
AU  - Spreitzer, Matjaž
AU  - Kovač, Janez
AU  - Nikolić, Maria Vesna
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/12397
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1630
AB  - NiMn2O4, with a cubic spinel structure and numerous and various applications in modern technology, were synthesized with two synthetic routes: sol-gel combustion method with glycine as fuel and electrospinning method with polyvinylpyrrolidone (PVP). Both amorphous powders from sol-gel synthesis and as-spun fibers from electrospinning synthesis were calcined, electrospun fibers at 400 °C and the sol-gel synthesized powders at 800 °C. Electrospun fibers were previously characterized with DTA-TGA to investigate the influence of thermal process on a polymer fiber.The obtained powders were characterized accordingly. Structural analysis was done via X-ray diffraction (XRD) and results show spinel structure with no impurity. The texture and morphology was investigated via N2 physisorption and transmission electron microscopy (TEM), respectively. Chemical states of elements were investigated by X-ray photoelectron spectroscopy (XPS). The electrochemical performance of the synthesized materials as supercapacitors was tested via cyclic voltammetry (CV), electric impedance spectroscopy (EIS), and chronopotentiometry (CP) to aquire galvanostatic charge-discharge (GCD) curves. Experiments were done in 6 M KOH solution with nickel foam as a working electrode. The results show good electrochemical capacity circa 200 F/g, with the potential for further structural improvement of the materials.
PB  - Novi Sad : Faculty of Technology
C3  - Programme and book of abstracts / 14th ECerS Conference for Young Scientists in Ceramics (CYSC-2021), October 20-23, 2021, Novi Sad
T1  - Synthesis, structure and electrochemical performance of NiMn2O4
EP  - 81
SP  - 81
UR  - https://hdl.handle.net/21.15107/rcub_dais_12397
ER  - 

@conference{
author = "Dojčinović, Milena and Vasiljević, Zorka Z and Tadić, Nenad B. and Krstić, Jugoslav B. and Marković, Smilja and Spreitzer, Matjaž and Kovač, Janez and Nikolić, Maria Vesna",
year = "2021",
abstract = "NiMn2O4, with a cubic spinel structure and numerous and various applications in modern technology, were synthesized with two synthetic routes: sol-gel combustion method with glycine as fuel and electrospinning method with polyvinylpyrrolidone (PVP). Both amorphous powders from sol-gel synthesis and as-spun fibers from electrospinning synthesis were calcined, electrospun fibers at 400 °C and the sol-gel synthesized powders at 800 °C. Electrospun fibers were previously characterized with DTA-TGA to investigate the influence of thermal process on a polymer fiber.The obtained powders were characterized accordingly. Structural analysis was done via X-ray diffraction (XRD) and results show spinel structure with no impurity. The texture and morphology was investigated via N2 physisorption and transmission electron microscopy (TEM), respectively. Chemical states of elements were investigated by X-ray photoelectron spectroscopy (XPS). The electrochemical performance of the synthesized materials as supercapacitors was tested via cyclic voltammetry (CV), electric impedance spectroscopy (EIS), and chronopotentiometry (CP) to aquire galvanostatic charge-discharge (GCD) curves. Experiments were done in 6 M KOH solution with nickel foam as a working electrode. The results show good electrochemical capacity circa 200 F/g, with the potential for further structural improvement of the materials.",
publisher = "Novi Sad : Faculty of Technology",
journal = "Programme and book of abstracts / 14th ECerS Conference for Young Scientists in Ceramics (CYSC-2021), October 20-23, 2021, Novi Sad",
title = "Synthesis, structure and electrochemical performance of NiMn2O4",
pages = "81-81",
url = "https://hdl.handle.net/21.15107/rcub_dais_12397"
}

Dojčinović, M., Vasiljević, Z. Z., Tadić, N. B., Krstić, J. B., Marković, S., Spreitzer, M., Kovač, J.,& Nikolić, M. V.. (2021). Synthesis, structure and electrochemical performance of NiMn2O4. in Programme and book of abstracts / 14th ECerS Conference for Young Scientists in Ceramics (CYSC-2021), October 20-23, 2021, Novi Sad
Novi Sad : Faculty of Technology., 81-81.
https://hdl.handle.net/21.15107/rcub_dais_12397

Dojčinović M, Vasiljević ZZ, Tadić NB, Krstić JB, Marković S, Spreitzer M, Kovač J, Nikolić MV. Synthesis, structure and electrochemical performance of NiMn2O4. in Programme and book of abstracts / 14th ECerS Conference for Young Scientists in Ceramics (CYSC-2021), October 20-23, 2021, Novi Sad. 2021;:81-81.
https://hdl.handle.net/21.15107/rcub_dais_12397 .

Dojčinović, Milena, Vasiljević, Zorka Z, Tadić, Nenad B., Krstić, Jugoslav B., Marković, Smilja, Spreitzer, Matjaž, Kovač, Janez, Nikolić, Maria Vesna, "Synthesis, structure and electrochemical performance of NiMn2O4" in Programme and book of abstracts / 14th ECerS Conference for Young Scientists in Ceramics (CYSC-2021), October 20-23, 2021, Novi Sad (2021):81-81,
https://hdl.handle.net/21.15107/rcub_dais_12397 .