TY  - JOUR
AU  - Vojisavljević, Katarina
AU  - Savić, Slavica M.
AU  - Počuča-Nešić, Milica
AU  - Hodžić, Aden
AU  - Kriechbaum, Manfred
AU  - Ribić, Vesna
AU  - Rečnik, Aleksander
AU  - Mitrović, Jelena
AU  - Branković, Goran
AU  - Djokic, Veljko
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1860
AB  - Developing highly efficient semiconductor metal oxide (SMOX) sensors capable of accurate and fast responses to environmental humidity is still a challenging task. In addition to a not so pronounced sensitivity to relative humidity change, most of the SMOXs cannot meet the criteria of real-time humidity sensing due to their long response/recovery time. The way to tackle this problem is to control adsorption/desorption processes, i.e., water-vapor molecular dynamics, over the sensor’s active layer through the powder and pore morphology design. With this in mind, a KIT-5-mediated synthesis was used to achieve mesoporous tin (IV) oxide replica (SnO2-R) with controlled pore size and ordering through template inversion and compared with a sol-gel synthesized powder (SnO2-SG). Unlike SnO2-SG, SnO2-R possessed a high specific surface area and quite an open pore structure, similar to the KIT-5, as observed by TEM, BET and SWAXS analyses. According to TEM, SnO2-R consisted of fine-grained globular particles and some percent of exaggerated, grown twinned crystals. The distinctive morphology of the SnO2-R-based sensor, with its specific pore structure and an increased number of oxygen-related defects associated with the powder preparation process and detected at the sensor surface by XPS analysis, contributed to excellent humidity sensing performances at room temperature, comprised of a low hysteresis error (3.7%), sensitivity of 406.8 kΩ/RH% and swift response/recovery speed (4 s/6 s).
PB  - MDPI
T2  - Molecules
T1  - KIT-5-Assisted Synthesis of Mesoporous SnO2 for High-Performance Humidity Sensors with a Swift Response/Recovery Speed
IS  - 4
SP  - 1754
VL  - 28
DO  - 10.3390/molecules28041754
ER  - 

@article{
author = "Vojisavljević, Katarina and Savić, Slavica M. and Počuča-Nešić, Milica and Hodžić, Aden and Kriechbaum, Manfred and Ribić, Vesna and Rečnik, Aleksander and Mitrović, Jelena and Branković, Goran and Djokic, Veljko",
year = "2023",
abstract = "Developing highly efficient semiconductor metal oxide (SMOX) sensors capable of accurate and fast responses to environmental humidity is still a challenging task. In addition to a not so pronounced sensitivity to relative humidity change, most of the SMOXs cannot meet the criteria of real-time humidity sensing due to their long response/recovery time. The way to tackle this problem is to control adsorption/desorption processes, i.e., water-vapor molecular dynamics, over the sensor’s active layer through the powder and pore morphology design. With this in mind, a KIT-5-mediated synthesis was used to achieve mesoporous tin (IV) oxide replica (SnO2-R) with controlled pore size and ordering through template inversion and compared with a sol-gel synthesized powder (SnO2-SG). Unlike SnO2-SG, SnO2-R possessed a high specific surface area and quite an open pore structure, similar to the KIT-5, as observed by TEM, BET and SWAXS analyses. According to TEM, SnO2-R consisted of fine-grained globular particles and some percent of exaggerated, grown twinned crystals. The distinctive morphology of the SnO2-R-based sensor, with its specific pore structure and an increased number of oxygen-related defects associated with the powder preparation process and detected at the sensor surface by XPS analysis, contributed to excellent humidity sensing performances at room temperature, comprised of a low hysteresis error (3.7%), sensitivity of 406.8 kΩ/RH% and swift response/recovery speed (4 s/6 s).",
publisher = "MDPI",
journal = "Molecules",
title = "KIT-5-Assisted Synthesis of Mesoporous SnO2 for High-Performance Humidity Sensors with a Swift Response/Recovery Speed",
number = "4",
pages = "1754",
volume = "28",
doi = "10.3390/molecules28041754"
}

Vojisavljević, K., Savić, S. M., Počuča-Nešić, M., Hodžić, A., Kriechbaum, M., Ribić, V., Rečnik, A., Mitrović, J., Branković, G.,& Djokic, V.. (2023). KIT-5-Assisted Synthesis of Mesoporous SnO2 for High-Performance Humidity Sensors with a Swift Response/Recovery Speed. in Molecules
MDPI., 28(4), 1754.
https://doi.org/10.3390/molecules28041754

Vojisavljević K, Savić SM, Počuča-Nešić M, Hodžić A, Kriechbaum M, Ribić V, Rečnik A, Mitrović J, Branković G, Djokic V. KIT-5-Assisted Synthesis of Mesoporous SnO2 for High-Performance Humidity Sensors with a Swift Response/Recovery Speed. in Molecules. 2023;28(4):1754.
doi:10.3390/molecules28041754 .

Vojisavljević, Katarina, Savić, Slavica M., Počuča-Nešić, Milica, Hodžić, Aden, Kriechbaum, Manfred, Ribić, Vesna, Rečnik, Aleksander, Mitrović, Jelena, Branković, Goran, Djokic, Veljko, "KIT-5-Assisted Synthesis of Mesoporous SnO2 for High-Performance Humidity Sensors with a Swift Response/Recovery Speed" in Molecules, 28, no. 4 (2023):1754,
https://doi.org/10.3390/molecules28041754 . .

TY  - JOUR
AU  - Bulajic, Dragica V.
AU  - Drljaca, Jovana
AU  - Capo, Ivan
AU  - Savić, Slavica M.
AU  - Vojisavljević, Katarina
AU  - Hodzic, Aden
AU  - Sekulic, Slobodan
AU  - Bajkin, Branislav V.
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1474
AB  - In the present work, a biomaterial (SBA-16/HA) based on the growth of hydroxyapatite (HA) particles within an organized silica structure SBA-16 (Santa Barbara Amorphous-16) was developed to evaluate its application to act as a porous microenvironment promoting attachment and viability of human dental pulp stem cells of healthy deciduous teeth (SHED). First, SHED were isolated and their phenotypes were evaluated by flow cytometry. The samples of SBA-16/HA were characterized by X-ray diffraction (XRD), small and wide angle X-ray scattering (SWAXS), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM) equipped with energy dispersive spectra detector (EDS). Afterward, cells were cultured in the eluates of the above-mentioned biomaterial aged for 24 hr, 7. and 14 days. Bio-Oss (R) and dentin particles are involved for comparison and cells are cultured in the eluates of these two materials also. Thiazolyl Blue Tetrazolium bromide assay-MTT (3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide assay) was used for the determination of cell viability. The results obtained by all aforementioned characterization methods of SBA-16/HA, revealed a uniform spherical mesoporous structure, an intrinsic characteristic of this material. This material displayed excellent biocompatibility on SHEDs, and even proliferative potential, indicating that SBA-16/HA could potentially serve as a suitable substrate for bone regeneration. Contrary to SBA-16/HA, dentin particles showed low cytotoxicity at all time points, compared to control and Bio-Oss (R) groups. Our results substantiate the idea that SBA-16/HA has a beneficial effect on SHEDs, thus paving the way toward developing new material for bone replacement.
PB  - Wiley, Hoboken
T2  - Microscopy Research and Technique
T1  - Biocompatibility of mesoporous SBA-16/hydroxyapatite nanocomposite and dentin demineralized particles on human dental pulp stem cells
DO  - 10.1002/jemt.24017
ER  - 

@article{
author = "Bulajic, Dragica V. and Drljaca, Jovana and Capo, Ivan and Savić, Slavica M. and Vojisavljević, Katarina and Hodzic, Aden and Sekulic, Slobodan and Bajkin, Branislav V.",
year = "2021",
abstract = "In the present work, a biomaterial (SBA-16/HA) based on the growth of hydroxyapatite (HA) particles within an organized silica structure SBA-16 (Santa Barbara Amorphous-16) was developed to evaluate its application to act as a porous microenvironment promoting attachment and viability of human dental pulp stem cells of healthy deciduous teeth (SHED). First, SHED were isolated and their phenotypes were evaluated by flow cytometry. The samples of SBA-16/HA were characterized by X-ray diffraction (XRD), small and wide angle X-ray scattering (SWAXS), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM) equipped with energy dispersive spectra detector (EDS). Afterward, cells were cultured in the eluates of the above-mentioned biomaterial aged for 24 hr, 7. and 14 days. Bio-Oss (R) and dentin particles are involved for comparison and cells are cultured in the eluates of these two materials also. Thiazolyl Blue Tetrazolium bromide assay-MTT (3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide assay) was used for the determination of cell viability. The results obtained by all aforementioned characterization methods of SBA-16/HA, revealed a uniform spherical mesoporous structure, an intrinsic characteristic of this material. This material displayed excellent biocompatibility on SHEDs, and even proliferative potential, indicating that SBA-16/HA could potentially serve as a suitable substrate for bone regeneration. Contrary to SBA-16/HA, dentin particles showed low cytotoxicity at all time points, compared to control and Bio-Oss (R) groups. Our results substantiate the idea that SBA-16/HA has a beneficial effect on SHEDs, thus paving the way toward developing new material for bone replacement.",
publisher = "Wiley, Hoboken",
journal = "Microscopy Research and Technique",
title = "Biocompatibility of mesoporous SBA-16/hydroxyapatite nanocomposite and dentin demineralized particles on human dental pulp stem cells",
doi = "10.1002/jemt.24017"
}

Bulajic, D. V., Drljaca, J., Capo, I., Savić, S. M., Vojisavljević, K., Hodzic, A., Sekulic, S.,& Bajkin, B. V.. (2021). Biocompatibility of mesoporous SBA-16/hydroxyapatite nanocomposite and dentin demineralized particles on human dental pulp stem cells. in Microscopy Research and Technique
Wiley, Hoboken..
https://doi.org/10.1002/jemt.24017

Bulajic DV, Drljaca J, Capo I, Savić SM, Vojisavljević K, Hodzic A, Sekulic S, Bajkin BV. Biocompatibility of mesoporous SBA-16/hydroxyapatite nanocomposite and dentin demineralized particles on human dental pulp stem cells. in Microscopy Research and Technique. 2021;.
doi:10.1002/jemt.24017 .

Bulajic, Dragica V., Drljaca, Jovana, Capo, Ivan, Savić, Slavica M., Vojisavljević, Katarina, Hodzic, Aden, Sekulic, Slobodan, Bajkin, Branislav V., "Biocompatibility of mesoporous SBA-16/hydroxyapatite nanocomposite and dentin demineralized particles on human dental pulp stem cells" in Microscopy Research and Technique (2021),
https://doi.org/10.1002/jemt.24017 . .

TY  - JOUR
AU  - Mitrović, Jelena
AU  - Počuča-Nešić, Milica
AU  - Luković Golić, Danijela
AU  - Ribić, Vesna
AU  - Branković, Zorica
AU  - Savić, Slavica M.
AU  - Dapčević, Aleksandra
AU  - Bernik, Slavko
AU  - Podlogar, Matejka
AU  - Kocen, Matej
AU  - Rapljenović, Zeljko
AU  - Ivek, Tomislav
AU  - Lazović, Vladimir
AU  - Dojčinović, Biljana
AU  - Branković, Goran
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1363
AB  - Antimony doped barium-stannate dense ceramic materials were synthesized using spark plasma sintering technique out of mechanically activated precursor powders. The influence of various Sb concentrations (x = 0.00 - 0.10) on properties of BaSn1-xSbxO3 ceramics was investigated. Relative densities of prepared samples were in the range of (79-96) %. TEM analysis revealed the presence of many dislocations in undoped BaSnO3, and their significant reduction upon doping with Sb. All samples except BaSn0.92Sb0.08O3 exhibit non-linear I-U characteristic, typical for semiconductors with potential barrier at grain boundaries. Low angle grain boundaries found only in BaSn0.92Sb0.08O3 caused the loss of potential barrier at grain boundaries which was confirmed by AC impedance spectroscopy measurements. Consequently, BaSn0.92Sb0.08O3 showed the lowest electrical resistivity and linear I-U characteristic. UV-vis analysis confirmed the increasing of band gap (Burstein-Moss shift) values in all doped samples.
PB  - Elsevier Sci Ltd, Oxford
T2  - Journal of the European Ceramic Society
T1  - The structural, electrical and optical properties of spark plasma sintered BaSn1-xSbxO3 ceramics
EP  - 5575
IS  - 15
SP  - 5566
VL  - 40
DO  - 10.1016/j.jeurceramsoc.2020.06.062
ER  - 

@article{
author = "Mitrović, Jelena and Počuča-Nešić, Milica and Luković Golić, Danijela and Ribić, Vesna and Branković, Zorica and Savić, Slavica M. and Dapčević, Aleksandra and Bernik, Slavko and Podlogar, Matejka and Kocen, Matej and Rapljenović, Zeljko and Ivek, Tomislav and Lazović, Vladimir and Dojčinović, Biljana and Branković, Goran",
year = "2020",
abstract = "Antimony doped barium-stannate dense ceramic materials were synthesized using spark plasma sintering technique out of mechanically activated precursor powders. The influence of various Sb concentrations (x = 0.00 - 0.10) on properties of BaSn1-xSbxO3 ceramics was investigated. Relative densities of prepared samples were in the range of (79-96) %. TEM analysis revealed the presence of many dislocations in undoped BaSnO3, and their significant reduction upon doping with Sb. All samples except BaSn0.92Sb0.08O3 exhibit non-linear I-U characteristic, typical for semiconductors with potential barrier at grain boundaries. Low angle grain boundaries found only in BaSn0.92Sb0.08O3 caused the loss of potential barrier at grain boundaries which was confirmed by AC impedance spectroscopy measurements. Consequently, BaSn0.92Sb0.08O3 showed the lowest electrical resistivity and linear I-U characteristic. UV-vis analysis confirmed the increasing of band gap (Burstein-Moss shift) values in all doped samples.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Journal of the European Ceramic Society",
title = "The structural, electrical and optical properties of spark plasma sintered BaSn1-xSbxO3 ceramics",
pages = "5575-5566",
number = "15",
volume = "40",
doi = "10.1016/j.jeurceramsoc.2020.06.062"
}

Mitrović, J., Počuča-Nešić, M., Luković Golić, D., Ribić, V., Branković, Z., Savić, S. M., Dapčević, A., Bernik, S., Podlogar, M., Kocen, M., Rapljenović, Z., Ivek, T., Lazović, V., Dojčinović, B.,& Branković, G.. (2020). The structural, electrical and optical properties of spark plasma sintered BaSn1-xSbxO3 ceramics. in Journal of the European Ceramic Society
Elsevier Sci Ltd, Oxford., 40(15), 5566-5575.
https://doi.org/10.1016/j.jeurceramsoc.2020.06.062

Mitrović J, Počuča-Nešić M, Luković Golić D, Ribić V, Branković Z, Savić SM, Dapčević A, Bernik S, Podlogar M, Kocen M, Rapljenović Z, Ivek T, Lazović V, Dojčinović B, Branković G. The structural, electrical and optical properties of spark plasma sintered BaSn1-xSbxO3 ceramics. in Journal of the European Ceramic Society. 2020;40(15):5566-5575.
doi:10.1016/j.jeurceramsoc.2020.06.062 .

Mitrović, Jelena, Počuča-Nešić, Milica, Luković Golić, Danijela, Ribić, Vesna, Branković, Zorica, Savić, Slavica M., Dapčević, Aleksandra, Bernik, Slavko, Podlogar, Matejka, Kocen, Matej, Rapljenović, Zeljko, Ivek, Tomislav, Lazović, Vladimir, Dojčinović, Biljana, Branković, Goran, "The structural, electrical and optical properties of spark plasma sintered BaSn1-xSbxO3 ceramics" in Journal of the European Ceramic Society, 40, no. 15 (2020):5566-5575,
https://doi.org/10.1016/j.jeurceramsoc.2020.06.062 . .

TY  - JOUR
AU  - Radojković, Aleksandar
AU  - Žunić, Milan
AU  - Savić, Slavica M.
AU  - Perać, Sanja
AU  - Luković Golić, Danijela
AU  - Branković, Zorica
AU  - Branković, Goran
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1275
AB  - The properties of single-doped BaCe0.9Y0.1O3-delta and materials co-doped with 5 mol % of different cations (In3+, Zr4+ and Nb5+) with the general formula BaCe0.85Y0.1M0.05O3-delta were compared to examine the influence of dopants on the electrolyte properties. The samples were synthesized by the citric-nitric autocombustion method. BaCe0.85Y0.1In0.05O3-delta was successfully sintered at 1400 degrees C for 5 h in air, while a complete sintering of the other materials was carried out at 1550 degrees C. This makes the doping with In a preferable method since sintering temperatures below 1500 degrees C can limit BaO evaporation. The total conductivities (sigma) calculated from the electrical measurements at 700 degrees C in wet hydrogen decreased in the following order: BaCe0.9Y0.1O3-delta > BaCe0.85Y0.1Zr0.05O3-delta > BaCe0.85Y0.1Nb0.05O3-delta > BaCe0.85Y0.1In0.05O3-delta. The stability of the ceramics exposed to a 100% CO2 atmosphere at 700 degrees C for 5 h was examined by X-ray analysis. It was observed that only BaCe0.85Y0.1In0.05O3-delta could sustain the aggressive environment containing traces of secondary phases, while the other samples were partially or significantly decomposed. By taking into account the values of the Goldschmidt tolerance factor (t) and dopant electronegativity (chi), it was found that the dopant electronegativity had a decisive role in inhibiting the carbonation of the ceramics.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Co-doping as a strategy for tailoring the electrolyte properties of BaCe0.9Y0.1O3-delta
EP  - 8285
IS  - 7
SP  - 8279
VL  - 45
DO  - 10.1016/j.ceramint.2019.01.134
ER  - 

@article{
author = "Radojković, Aleksandar and Žunić, Milan and Savić, Slavica M. and Perać, Sanja and Luković Golić, Danijela and Branković, Zorica and Branković, Goran",
year = "2019",
abstract = "The properties of single-doped BaCe0.9Y0.1O3-delta and materials co-doped with 5 mol % of different cations (In3+, Zr4+ and Nb5+) with the general formula BaCe0.85Y0.1M0.05O3-delta were compared to examine the influence of dopants on the electrolyte properties. The samples were synthesized by the citric-nitric autocombustion method. BaCe0.85Y0.1In0.05O3-delta was successfully sintered at 1400 degrees C for 5 h in air, while a complete sintering of the other materials was carried out at 1550 degrees C. This makes the doping with In a preferable method since sintering temperatures below 1500 degrees C can limit BaO evaporation. The total conductivities (sigma) calculated from the electrical measurements at 700 degrees C in wet hydrogen decreased in the following order: BaCe0.9Y0.1O3-delta > BaCe0.85Y0.1Zr0.05O3-delta > BaCe0.85Y0.1Nb0.05O3-delta > BaCe0.85Y0.1In0.05O3-delta. The stability of the ceramics exposed to a 100% CO2 atmosphere at 700 degrees C for 5 h was examined by X-ray analysis. It was observed that only BaCe0.85Y0.1In0.05O3-delta could sustain the aggressive environment containing traces of secondary phases, while the other samples were partially or significantly decomposed. By taking into account the values of the Goldschmidt tolerance factor (t) and dopant electronegativity (chi), it was found that the dopant electronegativity had a decisive role in inhibiting the carbonation of the ceramics.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Co-doping as a strategy for tailoring the electrolyte properties of BaCe0.9Y0.1O3-delta",
pages = "8285-8279",
number = "7",
volume = "45",
doi = "10.1016/j.ceramint.2019.01.134"
}

Radojković, A., Žunić, M., Savić, S. M., Perać, S., Luković Golić, D., Branković, Z.,& Branković, G.. (2019). Co-doping as a strategy for tailoring the electrolyte properties of BaCe0.9Y0.1O3-delta. in Ceramics International
Elsevier Sci Ltd, Oxford., 45(7), 8279-8285.
https://doi.org/10.1016/j.ceramint.2019.01.134

Radojković A, Žunić M, Savić SM, Perać S, Luković Golić D, Branković Z, Branković G. Co-doping as a strategy for tailoring the electrolyte properties of BaCe0.9Y0.1O3-delta. in Ceramics International. 2019;45(7):8279-8285.
doi:10.1016/j.ceramint.2019.01.134 .

Radojković, Aleksandar, Žunić, Milan, Savić, Slavica M., Perać, Sanja, Luković Golić, Danijela, Branković, Zorica, Branković, Goran, "Co-doping as a strategy for tailoring the electrolyte properties of BaCe0.9Y0.1O3-delta" in Ceramics International, 45, no. 7 (2019):8279-8285,
https://doi.org/10.1016/j.ceramint.2019.01.134 . .

TY  - JOUR
AU  - Spasojević, Ljiljana
AU  - Katona, Jaroslav
AU  - Bucko, Sandra
AU  - Savić, Slavica M.
AU  - Petrović, Lidija
AU  - Milinkovic-Budinicic, Jelena
AU  - Tasić, Nikola
AU  - Aidarova, Saule
AU  - Sharipova, Altynay
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1233
AB  - Zein, a corn protein, is often used for preparing edible films and coatings. Since zein is insoluble in water, zein films and coatings are usually prepared by spraying or casting its aqueous ethanol solutions to a contact surface (Z(sol) films). However, the use of organic solvents in many food applications is unwanted. In this work, aqueous dispersions of zein nanoparticles were prepared by antisolvent precipitation from 90% v/v aqueous ethanol zein solutions. Zein films were then prepared by casting the dispersions in silicone molds and air-drying at 50 degrees C (Z(dis) films), The obtained films were characterized for morphology, FTIR analysis, mechanical, water barrier and optical properties, and were benchmarked against Z(sol) films. It was found that continuous zein films can be prepared out of aqueous dispersions of zein nanoparticles. Z(dis) films proved to have grainy morphology and higher surface roughness when compared to Z(sol). Surface roughness of Z(dis) films was decreased when plasticizer was added. Water barrier properties of Z(dis) films were found to be comparable to Z(sol) films. No differences in mechanical properties were found between Z(sol) and Z(dis) film. Size of zein particles influenced morphology and optical properties of zein dispersion films.
PB  - Elsevier Science Bv, Amsterdam
T2  - LWT-Food Science and Technology
T1  - Edible water barrier films prepared from aqueous dispersions of zein nanoparticles
EP  - 358
SP  - 350
VL  - 109
DO  - 10.1016/j.lwt.2019.04.038
ER  - 

@article{
author = "Spasojević, Ljiljana and Katona, Jaroslav and Bucko, Sandra and Savić, Slavica M. and Petrović, Lidija and Milinkovic-Budinicic, Jelena and Tasić, Nikola and Aidarova, Saule and Sharipova, Altynay",
year = "2019",
abstract = "Zein, a corn protein, is often used for preparing edible films and coatings. Since zein is insoluble in water, zein films and coatings are usually prepared by spraying or casting its aqueous ethanol solutions to a contact surface (Z(sol) films). However, the use of organic solvents in many food applications is unwanted. In this work, aqueous dispersions of zein nanoparticles were prepared by antisolvent precipitation from 90% v/v aqueous ethanol zein solutions. Zein films were then prepared by casting the dispersions in silicone molds and air-drying at 50 degrees C (Z(dis) films), The obtained films were characterized for morphology, FTIR analysis, mechanical, water barrier and optical properties, and were benchmarked against Z(sol) films. It was found that continuous zein films can be prepared out of aqueous dispersions of zein nanoparticles. Z(dis) films proved to have grainy morphology and higher surface roughness when compared to Z(sol). Surface roughness of Z(dis) films was decreased when plasticizer was added. Water barrier properties of Z(dis) films were found to be comparable to Z(sol) films. No differences in mechanical properties were found between Z(sol) and Z(dis) film. Size of zein particles influenced morphology and optical properties of zein dispersion films.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "LWT-Food Science and Technology",
title = "Edible water barrier films prepared from aqueous dispersions of zein nanoparticles",
pages = "358-350",
volume = "109",
doi = "10.1016/j.lwt.2019.04.038"
}

Spasojević, L., Katona, J., Bucko, S., Savić, S. M., Petrović, L., Milinkovic-Budinicic, J., Tasić, N., Aidarova, S.,& Sharipova, A.. (2019). Edible water barrier films prepared from aqueous dispersions of zein nanoparticles. in LWT-Food Science and Technology
Elsevier Science Bv, Amsterdam., 109, 350-358.
https://doi.org/10.1016/j.lwt.2019.04.038

Spasojević L, Katona J, Bucko S, Savić SM, Petrović L, Milinkovic-Budinicic J, Tasić N, Aidarova S, Sharipova A. Edible water barrier films prepared from aqueous dispersions of zein nanoparticles. in LWT-Food Science and Technology. 2019;109:350-358.
doi:10.1016/j.lwt.2019.04.038 .

Spasojević, Ljiljana, Katona, Jaroslav, Bucko, Sandra, Savić, Slavica M., Petrović, Lidija, Milinkovic-Budinicic, Jelena, Tasić, Nikola, Aidarova, Saule, Sharipova, Altynay, "Edible water barrier films prepared from aqueous dispersions of zein nanoparticles" in LWT-Food Science and Technology, 109 (2019):350-358,
https://doi.org/10.1016/j.lwt.2019.04.038 . .

TY  - JOUR
AU  - Savić, Slavica M.
AU  - Vojisavljević, Katarina
AU  - Počuča-Nešić, Milica
AU  - Zivojević, Kristina
AU  - Mladenović, Minja
AU  - Knezević, Nikola Z.
PY  - 2018
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1124
AB  - Diverse hard template synthetic methodologies are being employed for the synthesis of mesostructured metal oxide and carbon nanomaterials, with the application of mesoporous silica as the hard template. We describe the main differences and advantages/disadvantages between the soft and hard templated synthetic routes, provide an overview of the synthesis and characteristics of different templating mesoporous silica nanomaterials and discuss on practical aspects of the hard template synthetic methodology for obtaining various metal-oxide and carbon-based mesostructured nanomaterials. Also, we cover various recent applications of thus constructed mesostructured metal oxide and carbon nanomaterials, such as sensing, energy storage, fuel cells, and catalysis, which demonstrate the highly promising character of the hard template methodology for the synthesis of a new generation of nanomaterials with broad application potential.
PB  - Savez inženjera metalurgije Srbije, Beograd
T2  - Metallurgical & Materials Engineering
T1  - Hard template synthesis of nanomaterials based on mesoporous silica
EP  - 241
IS  - 4
SP  - 225
VL  - 24
DO  - 10.30544/400
ER  - 

@article{
author = "Savić, Slavica M. and Vojisavljević, Katarina and Počuča-Nešić, Milica and Zivojević, Kristina and Mladenović, Minja and Knezević, Nikola Z.",
year = "2018",
abstract = "Diverse hard template synthetic methodologies are being employed for the synthesis of mesostructured metal oxide and carbon nanomaterials, with the application of mesoporous silica as the hard template. We describe the main differences and advantages/disadvantages between the soft and hard templated synthetic routes, provide an overview of the synthesis and characteristics of different templating mesoporous silica nanomaterials and discuss on practical aspects of the hard template synthetic methodology for obtaining various metal-oxide and carbon-based mesostructured nanomaterials. Also, we cover various recent applications of thus constructed mesostructured metal oxide and carbon nanomaterials, such as sensing, energy storage, fuel cells, and catalysis, which demonstrate the highly promising character of the hard template methodology for the synthesis of a new generation of nanomaterials with broad application potential.",
publisher = "Savez inženjera metalurgije Srbije, Beograd",
journal = "Metallurgical & Materials Engineering",
title = "Hard template synthesis of nanomaterials based on mesoporous silica",
pages = "241-225",
number = "4",
volume = "24",
doi = "10.30544/400"
}

Savić, S. M., Vojisavljević, K., Počuča-Nešić, M., Zivojević, K., Mladenović, M.,& Knezević, N. Z.. (2018). Hard template synthesis of nanomaterials based on mesoporous silica. in Metallurgical & Materials Engineering
Savez inženjera metalurgije Srbije, Beograd., 24(4), 225-241.
https://doi.org/10.30544/400

Savić SM, Vojisavljević K, Počuča-Nešić M, Zivojević K, Mladenović M, Knezević NZ. Hard template synthesis of nanomaterials based on mesoporous silica. in Metallurgical & Materials Engineering. 2018;24(4):225-241.
doi:10.30544/400 .

Savić, Slavica M., Vojisavljević, Katarina, Počuča-Nešić, Milica, Zivojević, Kristina, Mladenović, Minja, Knezević, Nikola Z., "Hard template synthesis of nanomaterials based on mesoporous silica" in Metallurgical & Materials Engineering, 24, no. 4 (2018):225-241,
https://doi.org/10.30544/400 . .

TY  - JOUR
AU  - Perać, Sanja
AU  - Savić, Slavica M.
AU  - Branković, Zorica
AU  - Jaglicic, Zvonko
AU  - Vrtnik, Stanislav
AU  - Branković, Goran
PY  - 2017
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1029
AB  - Polycrystalline samples of NaCo2-xCuxO4 (x=0, 0.01, 0.03 and 0.05) were synthesized in two different ways: 1) by a mechanochemically assisted solid-state reaction method (MASSR) and 2) by a citric acid complex method (CAC). In this work we examined the influence of these synthesis routes and small Cu concentrations on magnetic properties and the heat capacity of sintered samples. The magnetic susceptibility (chi) of all samples followed the Curie-Weiss law in the temperature range between 50 K and 300 K, while a negative Weiss constant (theta) implied an antiferromagnetic interaction. According to the magnetic susceptibility data, a peak around 30 K indicating the presence of Co3O4 as a secondary phase appeared for all MASSR samples and CAC samples with Cu content above 1%. The effective magnetic moment (mu(eff)) of CAC samples was lower than the theoretical, spin only value obtained for the Co4+ ion in the low spin state indicating the presence of low spin Co3+(S = 0). These values were also lower compared to the values obtained for MASSR samples. The highest mu(eff) of 1.75 mu B/atom Co was obtained for the undoped MASSR sample. The heat capacity of CAC samples at 2 K decreased with Cu concentration due to lowering of the electronic specific heat coefficient (gamma). The highest gamma of 63.9 mJ/molK(2) was obtained for the undoped CAC sample. This reduction in gamma values was the result of the decrease of the density of state and/or mass enhancement factor.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Antiferromagnetism and heat capacity of NaCo2-xCuxO4 ceramics
EP  - 2026
IS  - 2
SP  - 2022
VL  - 43
DO  - 10.1016/j.ceramint.2016.10.170
ER  - 

@article{
author = "Perać, Sanja and Savić, Slavica M. and Branković, Zorica and Jaglicic, Zvonko and Vrtnik, Stanislav and Branković, Goran",
year = "2017",
abstract = "Polycrystalline samples of NaCo2-xCuxO4 (x=0, 0.01, 0.03 and 0.05) were synthesized in two different ways: 1) by a mechanochemically assisted solid-state reaction method (MASSR) and 2) by a citric acid complex method (CAC). In this work we examined the influence of these synthesis routes and small Cu concentrations on magnetic properties and the heat capacity of sintered samples. The magnetic susceptibility (chi) of all samples followed the Curie-Weiss law in the temperature range between 50 K and 300 K, while a negative Weiss constant (theta) implied an antiferromagnetic interaction. According to the magnetic susceptibility data, a peak around 30 K indicating the presence of Co3O4 as a secondary phase appeared for all MASSR samples and CAC samples with Cu content above 1%. The effective magnetic moment (mu(eff)) of CAC samples was lower than the theoretical, spin only value obtained for the Co4+ ion in the low spin state indicating the presence of low spin Co3+(S = 0). These values were also lower compared to the values obtained for MASSR samples. The highest mu(eff) of 1.75 mu B/atom Co was obtained for the undoped MASSR sample. The heat capacity of CAC samples at 2 K decreased with Cu concentration due to lowering of the electronic specific heat coefficient (gamma). The highest gamma of 63.9 mJ/molK(2) was obtained for the undoped CAC sample. This reduction in gamma values was the result of the decrease of the density of state and/or mass enhancement factor.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Antiferromagnetism and heat capacity of NaCo2-xCuxO4 ceramics",
pages = "2026-2022",
number = "2",
volume = "43",
doi = "10.1016/j.ceramint.2016.10.170"
}

Perać, S., Savić, S. M., Branković, Z., Jaglicic, Z., Vrtnik, S.,& Branković, G.. (2017). Antiferromagnetism and heat capacity of NaCo2-xCuxO4 ceramics. in Ceramics International
Elsevier Sci Ltd, Oxford., 43(2), 2022-2026.
https://doi.org/10.1016/j.ceramint.2016.10.170

Perać S, Savić SM, Branković Z, Jaglicic Z, Vrtnik S, Branković G. Antiferromagnetism and heat capacity of NaCo2-xCuxO4 ceramics. in Ceramics International. 2017;43(2):2022-2026.
doi:10.1016/j.ceramint.2016.10.170 .

Perać, Sanja, Savić, Slavica M., Branković, Zorica, Jaglicic, Zvonko, Vrtnik, Stanislav, Branković, Goran, "Antiferromagnetism and heat capacity of NaCo2-xCuxO4 ceramics" in Ceramics International, 43, no. 2 (2017):2022-2026,
https://doi.org/10.1016/j.ceramint.2016.10.170 . .

TY  - JOUR
AU  - Luković Golić, Danijela
AU  - Radojković, Aleksandar
AU  - Ćirković, Jovana
AU  - Dapčević, Aleksandra
AU  - Pajić, Damir
AU  - Tasić, Nikola
AU  - Savić, Slavica M.
AU  - Počuča-Nešić, Milica
AU  - Marković, Smilja
AU  - Branković, Goran
AU  - Marinković Stanojević, Zorica
AU  - Branković, Zorica
PY  - 2016
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1017
AB  - BiFeO3 powders were synthesized by sonochemically assisted hydrothermal and hydro-evaporation methods. The X-ray diffraction confirmed the presence of secondary phases, Bi25FeO39 and Bi2Fe4O9, in as prepared BiFeO3 powders. Optimization of sintering conditions indicated that temperature of 800 degrees C and time of 2 h after pressing at 9 t/cm(2) provided ceramics samples with"the highest density (up to 96% of theoretical density) and the lowest content of secondary phases. Ferroelectric and magnetic characterization was performed on two selected ceramics samples with the highest densities. Ceramics obtained from the powder synthesized by the hydrothermal method showed greater lattice distortion along [1 1 1] axis and smaller grains, which resulted in larger values of electric polarization at room temperature. It also exhibited less Fe(3d)-O(2p) orbital overlapping due to a larger Fe-O-Fe bond angle, causing lower antiferromagnetic ordering and weak ferromagnetic behavior at low temperatures.
PB  - Elsevier Sci Ltd, Oxford
T2  - Journal of the European Ceramic Society
T1  - Structural, ferroelectric and magnetic properties of BiFeO3 synthesized by sonochemically assisted hydrothermal and hydro-evaporation chemical methods
EP  - 1631
IS  - 7
SP  - 1623
VL  - 36
DO  - 10.1016/j.jeurceramsoc.2016.01.031
ER  - 

@article{
author = "Luković Golić, Danijela and Radojković, Aleksandar and Ćirković, Jovana and Dapčević, Aleksandra and Pajić, Damir and Tasić, Nikola and Savić, Slavica M. and Počuča-Nešić, Milica and Marković, Smilja and Branković, Goran and Marinković Stanojević, Zorica and Branković, Zorica",
year = "2016",
abstract = "BiFeO3 powders were synthesized by sonochemically assisted hydrothermal and hydro-evaporation methods. The X-ray diffraction confirmed the presence of secondary phases, Bi25FeO39 and Bi2Fe4O9, in as prepared BiFeO3 powders. Optimization of sintering conditions indicated that temperature of 800 degrees C and time of 2 h after pressing at 9 t/cm(2) provided ceramics samples with"the highest density (up to 96% of theoretical density) and the lowest content of secondary phases. Ferroelectric and magnetic characterization was performed on two selected ceramics samples with the highest densities. Ceramics obtained from the powder synthesized by the hydrothermal method showed greater lattice distortion along [1 1 1] axis and smaller grains, which resulted in larger values of electric polarization at room temperature. It also exhibited less Fe(3d)-O(2p) orbital overlapping due to a larger Fe-O-Fe bond angle, causing lower antiferromagnetic ordering and weak ferromagnetic behavior at low temperatures.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Journal of the European Ceramic Society",
title = "Structural, ferroelectric and magnetic properties of BiFeO3 synthesized by sonochemically assisted hydrothermal and hydro-evaporation chemical methods",
pages = "1631-1623",
number = "7",
volume = "36",
doi = "10.1016/j.jeurceramsoc.2016.01.031"
}

Luković Golić, D., Radojković, A., Ćirković, J., Dapčević, A., Pajić, D., Tasić, N., Savić, S. M., Počuča-Nešić, M., Marković, S., Branković, G., Marinković Stanojević, Z.,& Branković, Z.. (2016). Structural, ferroelectric and magnetic properties of BiFeO3 synthesized by sonochemically assisted hydrothermal and hydro-evaporation chemical methods. in Journal of the European Ceramic Society
Elsevier Sci Ltd, Oxford., 36(7), 1623-1631.
https://doi.org/10.1016/j.jeurceramsoc.2016.01.031

Luković Golić D, Radojković A, Ćirković J, Dapčević A, Pajić D, Tasić N, Savić SM, Počuča-Nešić M, Marković S, Branković G, Marinković Stanojević Z, Branković Z. Structural, ferroelectric and magnetic properties of BiFeO3 synthesized by sonochemically assisted hydrothermal and hydro-evaporation chemical methods. in Journal of the European Ceramic Society. 2016;36(7):1623-1631.
doi:10.1016/j.jeurceramsoc.2016.01.031 .

Luković Golić, Danijela, Radojković, Aleksandar, Ćirković, Jovana, Dapčević, Aleksandra, Pajić, Damir, Tasić, Nikola, Savić, Slavica M., Počuča-Nešić, Milica, Marković, Smilja, Branković, Goran, Marinković Stanojević, Zorica, Branković, Zorica, "Structural, ferroelectric and magnetic properties of BiFeO3 synthesized by sonochemically assisted hydrothermal and hydro-evaporation chemical methods" in Journal of the European Ceramic Society, 36, no. 7 (2016):1623-1631,
https://doi.org/10.1016/j.jeurceramsoc.2016.01.031 . .

TY  - JOUR
AU  - Savić, Slavica M.
AU  - Stojanović, Goran M
AU  - Vasiljević, D.
AU  - Vojisavljević, Katarina
AU  - Dapčević, Aleksandra
AU  - Radojković, Aleksandar
AU  - Perać, Sanja
AU  - Branković, Goran
PY  - 2016
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1001
AB  - The chemical synthesis of nickel manganite powder was performed by a complex polymerization method (CPM). The obtained fine nanoscaled powders were uniaxially pressed and sintered at different temperatures: 1000-1200 degrees C for 2 h, and different atmospheres: air and oxygen. The highest density was obtained for the sample sintered at 1200 degrees C in oxygen atmosphere. The energy for direct band gap transition (Eg) calculated from the Tauc plot decreases from 1.51 to 1.40 eV with the increase of the sintering temperature. Indentation experiments were carried out using a three-sided pyramidal (Berkovich) diamond tip, and Young's modulus of elasticity and hardness of NTC (negative temperature coefficient) ceramics at various indentation depths were calculated. The highest hardness (0.754 GPa) and elastic modulus (16.888 GPa) are exhibited by the ceramics sintered at highest temperature in oxygen atmosphere.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Nanoindentation study of nickel manganite ceramics obtained by a complex polymerization method
EP  - 12282
IS  - 10
SP  - 12276
VL  - 42
DO  - 10.1016/j.ceramint.2016.04.174
ER  - 

@article{
author = "Savić, Slavica M. and Stojanović, Goran M and Vasiljević, D. and Vojisavljević, Katarina and Dapčević, Aleksandra and Radojković, Aleksandar and Perać, Sanja and Branković, Goran",
year = "2016",
abstract = "The chemical synthesis of nickel manganite powder was performed by a complex polymerization method (CPM). The obtained fine nanoscaled powders were uniaxially pressed and sintered at different temperatures: 1000-1200 degrees C for 2 h, and different atmospheres: air and oxygen. The highest density was obtained for the sample sintered at 1200 degrees C in oxygen atmosphere. The energy for direct band gap transition (Eg) calculated from the Tauc plot decreases from 1.51 to 1.40 eV with the increase of the sintering temperature. Indentation experiments were carried out using a three-sided pyramidal (Berkovich) diamond tip, and Young's modulus of elasticity and hardness of NTC (negative temperature coefficient) ceramics at various indentation depths were calculated. The highest hardness (0.754 GPa) and elastic modulus (16.888 GPa) are exhibited by the ceramics sintered at highest temperature in oxygen atmosphere.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Nanoindentation study of nickel manganite ceramics obtained by a complex polymerization method",
pages = "12282-12276",
number = "10",
volume = "42",
doi = "10.1016/j.ceramint.2016.04.174"
}

Savić, S. M., Stojanović, G. M., Vasiljević, D., Vojisavljević, K., Dapčević, A., Radojković, A., Perać, S.,& Branković, G.. (2016). Nanoindentation study of nickel manganite ceramics obtained by a complex polymerization method. in Ceramics International
Elsevier Sci Ltd, Oxford., 42(10), 12276-12282.
https://doi.org/10.1016/j.ceramint.2016.04.174

Savić SM, Stojanović GM, Vasiljević D, Vojisavljević K, Dapčević A, Radojković A, Perać S, Branković G. Nanoindentation study of nickel manganite ceramics obtained by a complex polymerization method. in Ceramics International. 2016;42(10):12276-12282.
doi:10.1016/j.ceramint.2016.04.174 .

Savić, Slavica M., Stojanović, Goran M, Vasiljević, D., Vojisavljević, Katarina, Dapčević, Aleksandra, Radojković, Aleksandar, Perać, Sanja, Branković, Goran, "Nanoindentation study of nickel manganite ceramics obtained by a complex polymerization method" in Ceramics International, 42, no. 10 (2016):12276-12282,
https://doi.org/10.1016/j.ceramint.2016.04.174 . .

TY  - CONF
AU  - Kostić, Igor
AU  - Krnjajić, Slobodan
AU  - Radojković, Aleksandar
AU  - Radović, Marko
AU  - Savić, Slavica M.
AU  - Kostić, Miroslav
AU  - Mitrović, Jelena
AU  - Branković, Zorica
AU  - Branković, Goran
PY  - 2015
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2744
AB  - Alumina powders were obtained by auto combustion method and calcined for 1 h at
temperatures ranging from 1000ºC to 1200ºC. X-ray powder diffraction analysis revealed an
overwhelming presence of γ–Al2O3 for the powder calcined at 1000ºC, while at 1200ºC only
the presence of α–Al2O3 was detected. Insecticide properties of these powders were
investigated on bean weevil (Acanthoscelides obtectus Say). Mortality of treated and
untreated male and female adults was checked in a period of 7 days. The powder calcined at
1200ºC was the most efficient, and 100% mortality of both male and female insects were
reached after 7 days of exposure. It was also observed that insecticide efficiency increased
with the increase of α–Al2O3 phase present in the powders and the female insects were less
susceptible to the powders’ toxicity in general. Scanning electron microscope analysis of the
treated adults with Al2O3 indicated that mortality of bean weevils can be related to adsorption
of the powders onto their exoskeleton. Development of F1 progeny was similar for all the
powders and the number of hatched larvae was significantly reduced in comparison with the
untreated seeds, while the percentage of damaged seeds dropped from 70% to 15%. These
results suggest that relatively cheap and non-toxic α–Al2O3 powders can be considered for use
in pest control, especially in organic seed production
PB  - 6th International Scientific Agricultural Symposium „Agrosym 2015“, Jahorina
C3  - 6th International Scientific Agricultural Symposium „Agrosym 2015“, Jahorina
T1  - Alumina powders as novel non-toxic insecticide against bean weevil (Acanthoscelides obtectus Say)
EP  - 948
SP  - 943
VL  - 6
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2744
ER  - 

@conference{
author = "Kostić, Igor and Krnjajić, Slobodan and Radojković, Aleksandar and Radović, Marko and Savić, Slavica M. and Kostić, Miroslav and Mitrović, Jelena and Branković, Zorica and Branković, Goran",
year = "2015",
abstract = "Alumina powders were obtained by auto combustion method and calcined for 1 h at
temperatures ranging from 1000ºC to 1200ºC. X-ray powder diffraction analysis revealed an
overwhelming presence of γ–Al2O3 for the powder calcined at 1000ºC, while at 1200ºC only
the presence of α–Al2O3 was detected. Insecticide properties of these powders were
investigated on bean weevil (Acanthoscelides obtectus Say). Mortality of treated and
untreated male and female adults was checked in a period of 7 days. The powder calcined at
1200ºC was the most efficient, and 100% mortality of both male and female insects were
reached after 7 days of exposure. It was also observed that insecticide efficiency increased
with the increase of α–Al2O3 phase present in the powders and the female insects were less
susceptible to the powders’ toxicity in general. Scanning electron microscope analysis of the
treated adults with Al2O3 indicated that mortality of bean weevils can be related to adsorption
of the powders onto their exoskeleton. Development of F1 progeny was similar for all the
powders and the number of hatched larvae was significantly reduced in comparison with the
untreated seeds, while the percentage of damaged seeds dropped from 70% to 15%. These
results suggest that relatively cheap and non-toxic α–Al2O3 powders can be considered for use
in pest control, especially in organic seed production",
publisher = "6th International Scientific Agricultural Symposium „Agrosym 2015“, Jahorina",
journal = "6th International Scientific Agricultural Symposium „Agrosym 2015“, Jahorina",
title = "Alumina powders as novel non-toxic insecticide against bean weevil (Acanthoscelides obtectus Say)",
pages = "948-943",
volume = "6",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2744"
}

Kostić, I., Krnjajić, S., Radojković, A., Radović, M., Savić, S. M., Kostić, M., Mitrović, J., Branković, Z.,& Branković, G.. (2015). Alumina powders as novel non-toxic insecticide against bean weevil (Acanthoscelides obtectus Say). in 6th International Scientific Agricultural Symposium „Agrosym 2015“, Jahorina
6th International Scientific Agricultural Symposium „Agrosym 2015“, Jahorina., 6, 943-948.
https://hdl.handle.net/21.15107/rcub_rimsi_2744

Kostić I, Krnjajić S, Radojković A, Radović M, Savić SM, Kostić M, Mitrović J, Branković Z, Branković G. Alumina powders as novel non-toxic insecticide against bean weevil (Acanthoscelides obtectus Say). in 6th International Scientific Agricultural Symposium „Agrosym 2015“, Jahorina. 2015;6:943-948.
https://hdl.handle.net/21.15107/rcub_rimsi_2744 .

Kostić, Igor, Krnjajić, Slobodan, Radojković, Aleksandar, Radović, Marko, Savić, Slavica M., Kostić, Miroslav, Mitrović, Jelena, Branković, Zorica, Branković, Goran, "Alumina powders as novel non-toxic insecticide against bean weevil (Acanthoscelides obtectus Say)" in 6th International Scientific Agricultural Symposium „Agrosym 2015“, Jahorina, 6 (2015):943-948,
https://hdl.handle.net/21.15107/rcub_rimsi_2744 .

TY  - JOUR
AU  - Perać, Sanja
AU  - Savić, Slavica M.
AU  - Branković, Zorica
AU  - Vrtnik, Stanislav
AU  - Dapčević, Aleksandra
AU  - Branković, Goran
PY  - 2015
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/861
AB  - In the last decade, the sodium cobaltite ceramic became a promising candidate for potential thermoelectric applications, because of its large thermopower and low resistivity. In this work, polycrystalline samples of NaCo(2-x)CuxO(4) (x = 0, 0.01, 0.03, 0.05) were prepared using mechanochemically assisted solid-state reaction method (MASSR) and the citric acid complex method (CAC). Bulk samples were prepared by pressing into disc-shaped pellets and subsequently subjected to a thermal treatment at 880 degrees C in inert argon atmosphere. Changes in structural and microstructural characteristics of the samples, caused by the substitution of Cu for Co, were characterized using X-ray diffraction (XRD) analysis, and scanning electron microscopy (SEM), respectively. The results of inductively coupled plasma (ICP) analysis showed that the compositions of the final products correspond to gamma-NaCo2O4 and confirmed that desired compound was obtained in both syntheses procedures. The advantages and disadvantages of these two syntheses procedures have been observed and discussed: the CAC method enabled obtaining samples with higher density and fine microstructure compared to the MASSR method, thus better thermoelectric properties. The Cu2+ substitution led to the increase in Seebeck coefficient in both synthesis routes. The highest figure of merit of 0.022 at 300 K was observed for the sample doped with 1 mol% Cu, obtained by the CAC method, and it was almost twice higher than in the undoped sample confirming the significant influence of Cu-doping with even small concentrations.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Alloys and Compounds
T1  - Mechanochemically assisted solid-state and citric acid complex syntheses of Cu-doped sodium cobaltite ceramics
EP  - 487
SP  - 480
VL  - 640
DO  - 10.1016/j.jallcom.2015.04.003
ER  - 

@article{
author = "Perać, Sanja and Savić, Slavica M. and Branković, Zorica and Vrtnik, Stanislav and Dapčević, Aleksandra and Branković, Goran",
year = "2015",
abstract = "In the last decade, the sodium cobaltite ceramic became a promising candidate for potential thermoelectric applications, because of its large thermopower and low resistivity. In this work, polycrystalline samples of NaCo(2-x)CuxO(4) (x = 0, 0.01, 0.03, 0.05) were prepared using mechanochemically assisted solid-state reaction method (MASSR) and the citric acid complex method (CAC). Bulk samples were prepared by pressing into disc-shaped pellets and subsequently subjected to a thermal treatment at 880 degrees C in inert argon atmosphere. Changes in structural and microstructural characteristics of the samples, caused by the substitution of Cu for Co, were characterized using X-ray diffraction (XRD) analysis, and scanning electron microscopy (SEM), respectively. The results of inductively coupled plasma (ICP) analysis showed that the compositions of the final products correspond to gamma-NaCo2O4 and confirmed that desired compound was obtained in both syntheses procedures. The advantages and disadvantages of these two syntheses procedures have been observed and discussed: the CAC method enabled obtaining samples with higher density and fine microstructure compared to the MASSR method, thus better thermoelectric properties. The Cu2+ substitution led to the increase in Seebeck coefficient in both synthesis routes. The highest figure of merit of 0.022 at 300 K was observed for the sample doped with 1 mol% Cu, obtained by the CAC method, and it was almost twice higher than in the undoped sample confirming the significant influence of Cu-doping with even small concentrations.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Alloys and Compounds",
title = "Mechanochemically assisted solid-state and citric acid complex syntheses of Cu-doped sodium cobaltite ceramics",
pages = "487-480",
volume = "640",
doi = "10.1016/j.jallcom.2015.04.003"
}

Perać, S., Savić, S. M., Branković, Z., Vrtnik, S., Dapčević, A.,& Branković, G.. (2015). Mechanochemically assisted solid-state and citric acid complex syntheses of Cu-doped sodium cobaltite ceramics. in Journal of Alloys and Compounds
Elsevier Science Sa, Lausanne., 640, 480-487.
https://doi.org/10.1016/j.jallcom.2015.04.003

Perać S, Savić SM, Branković Z, Vrtnik S, Dapčević A, Branković G. Mechanochemically assisted solid-state and citric acid complex syntheses of Cu-doped sodium cobaltite ceramics. in Journal of Alloys and Compounds. 2015;640:480-487.
doi:10.1016/j.jallcom.2015.04.003 .

Perać, Sanja, Savić, Slavica M., Branković, Zorica, Vrtnik, Stanislav, Dapčević, Aleksandra, Branković, Goran, "Mechanochemically assisted solid-state and citric acid complex syntheses of Cu-doped sodium cobaltite ceramics" in Journal of Alloys and Compounds, 640 (2015):480-487,
https://doi.org/10.1016/j.jallcom.2015.04.003 . .

TY  - JOUR
AU  - Radojković, Aleksandar
AU  - Savić, Slavica M.
AU  - Jović, N.
AU  - Ćirković, Jovana
AU  - Despotović, Z.
AU  - Ribic, A.
AU  - Branković, Zorica
AU  - Branković, Goran
PY  - 2015
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/871
AB  - BaCe(0.9)Ee(0.1)O(2.95) (BCE) nanopowder was synthesized by citric-nitric autocombustion method. Rietveld refinement analysis showed that unit cell volume was slightly larger compared with the most known BaCe0.9Y0.1O2.95, which might contribute to higher proton mobility. Sinterability of BaCeO3 is also enhanced by doping with Eu, since dense single-phased BCE electrolyte microstructure comprising of 1-2mm grains was obtained after sintering at 1450 degrees C for 5 h. The electrochemical impedance spectroscopy (EIS) analysis revealed separate bulk and grain boundary contributions to the total electrolyte conductivity below 200 degrees C. The grain boundary conductivity was one to two orders of magnitude lower than the bulk conductivity, indicating blocking effect of the grain boundaries to the mobility of charge carriers. This effect diminished completely above 500 degrees C and only total conductivities were determined between 500 and 700 degrees C. Conductivity of BCE in a wet hydrogen atmosphere at 600 degrees C reached 1.2 x 10(-2) S/cm, which can be considered as one of the highest conductivities among BaCeO3 based proton conductors.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Electrochimica Acta
T1  - Structural and electrical properties of BaCe(0.9)Ee(0.1)O(2.95) electrolyte for IT-SOFCs
EP  - 158
SP  - 153
VL  - 161
DO  - 10.1016/j.electacta.2015.02.075
ER  - 

@article{
author = "Radojković, Aleksandar and Savić, Slavica M. and Jović, N. and Ćirković, Jovana and Despotović, Z. and Ribic, A. and Branković, Zorica and Branković, Goran",
year = "2015",
abstract = "BaCe(0.9)Ee(0.1)O(2.95) (BCE) nanopowder was synthesized by citric-nitric autocombustion method. Rietveld refinement analysis showed that unit cell volume was slightly larger compared with the most known BaCe0.9Y0.1O2.95, which might contribute to higher proton mobility. Sinterability of BaCeO3 is also enhanced by doping with Eu, since dense single-phased BCE electrolyte microstructure comprising of 1-2mm grains was obtained after sintering at 1450 degrees C for 5 h. The electrochemical impedance spectroscopy (EIS) analysis revealed separate bulk and grain boundary contributions to the total electrolyte conductivity below 200 degrees C. The grain boundary conductivity was one to two orders of magnitude lower than the bulk conductivity, indicating blocking effect of the grain boundaries to the mobility of charge carriers. This effect diminished completely above 500 degrees C and only total conductivities were determined between 500 and 700 degrees C. Conductivity of BCE in a wet hydrogen atmosphere at 600 degrees C reached 1.2 x 10(-2) S/cm, which can be considered as one of the highest conductivities among BaCeO3 based proton conductors.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Electrochimica Acta",
title = "Structural and electrical properties of BaCe(0.9)Ee(0.1)O(2.95) electrolyte for IT-SOFCs",
pages = "158-153",
volume = "161",
doi = "10.1016/j.electacta.2015.02.075"
}

Radojković, A., Savić, S. M., Jović, N., Ćirković, J., Despotović, Z., Ribic, A., Branković, Z.,& Branković, G.. (2015). Structural and electrical properties of BaCe(0.9)Ee(0.1)O(2.95) electrolyte for IT-SOFCs. in Electrochimica Acta
Pergamon-Elsevier Science Ltd, Oxford., 161, 153-158.
https://doi.org/10.1016/j.electacta.2015.02.075

Radojković A, Savić SM, Jović N, Ćirković J, Despotović Z, Ribic A, Branković Z, Branković G. Structural and electrical properties of BaCe(0.9)Ee(0.1)O(2.95) electrolyte for IT-SOFCs. in Electrochimica Acta. 2015;161:153-158.
doi:10.1016/j.electacta.2015.02.075 .

Radojković, Aleksandar, Savić, Slavica M., Jović, N., Ćirković, Jovana, Despotović, Z., Ribic, A., Branković, Zorica, Branković, Goran, "Structural and electrical properties of BaCe(0.9)Ee(0.1)O(2.95) electrolyte for IT-SOFCs" in Electrochimica Acta, 161 (2015):153-158,
https://doi.org/10.1016/j.electacta.2015.02.075 . .

TY  - JOUR
AU  - Tadic, Marin M
AU  - Savić, Slavica M.
AU  - Jaglicic, Zvonko
AU  - Vojisavljević, Katarina
AU  - Radojković, Aleksandar
AU  - Perać, Sanja
AU  - Nikolic, Dobrica
PY  - 2014
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/778
AB  - We present magnetic properties of NiMn2O4-delta (nickel manganite) which was synthesized by complex polymerization synthesis method followed by successive heat treatment and final calcinations in air at 1200 degrees C. The sample was characterized by using X-ray powder diffractometer (XRPD), scanning electron microscopy (SEM), field-emission scanning electron microscopy (FE-SEM) and superconducting quantum interference device (SQUID) magnetometer. The XRPD and FE-SEM studies revealed NiMn2O4-delta phase and good crystallinity of particles. No other impurities have been observed by XRPD. The magnetic properties of the sample have been studied by measuring the temperature and field dependence of magnetization. Magnetic measurements of M(T) reveal rather complex magnetic properties and multiple magnetic phase transitions. We show three magnetic phase transitions with transition temperatures at T-M1 = 35 K (long-range antiferromagnetic transition), T-M2 = 101 K (antiferromagnetic-type transition) and T-M3 = 120 K (ferromagnetic-like transition). We found that the T-M1 transition is strongly dependent on the strength of the applied magnetic field (T-M1 decreases with increasing applied field) whereas the T-M3 is field independent. Otherwise, the T-M2 maximum almost disappears in higher applied magnetic fields (H = 1 kOe and 10 kOe). Magnetic measurements of M(H) show hysteretic behavior below T-M3. Moreover, hysteresis properties measured after cooling of the sample in magnetic field of 10 kOe show exchange bias effect with an exchange bias field vertical bar H-EB vertical bar= 196 Oe. In summary, the properties that distinguish the investigated NiMn2O4-delta sample from other bulk, thin film, ceramic and nanoparticle NiMn2O4-delta systems are the triple magnetic transitions with sharp increase of the ZFC and FC magnetizations at 120 K and the exchange bias effect. The analysis of the results and comparison with literature data allowed us to conjecture that the mixed oxidation states of Mn ions, ferromagnetic and antiferromagnetic sublattice orders and surface effects in the sample tailor these interesting magnetic properties.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Alloys and Compounds
T1  - Magnetic properties of NiMn2O4-delta (nickel manganite): Multiple magnetic phase transitions and exchange bias effect
EP  - 469
SP  - 465
VL  - 588
DO  - 10.1016/j.jallcom.2013.11.025
ER  - 

@article{
author = "Tadic, Marin M and Savić, Slavica M. and Jaglicic, Zvonko and Vojisavljević, Katarina and Radojković, Aleksandar and Perać, Sanja and Nikolic, Dobrica",
year = "2014",
abstract = "We present magnetic properties of NiMn2O4-delta (nickel manganite) which was synthesized by complex polymerization synthesis method followed by successive heat treatment and final calcinations in air at 1200 degrees C. The sample was characterized by using X-ray powder diffractometer (XRPD), scanning electron microscopy (SEM), field-emission scanning electron microscopy (FE-SEM) and superconducting quantum interference device (SQUID) magnetometer. The XRPD and FE-SEM studies revealed NiMn2O4-delta phase and good crystallinity of particles. No other impurities have been observed by XRPD. The magnetic properties of the sample have been studied by measuring the temperature and field dependence of magnetization. Magnetic measurements of M(T) reveal rather complex magnetic properties and multiple magnetic phase transitions. We show three magnetic phase transitions with transition temperatures at T-M1 = 35 K (long-range antiferromagnetic transition), T-M2 = 101 K (antiferromagnetic-type transition) and T-M3 = 120 K (ferromagnetic-like transition). We found that the T-M1 transition is strongly dependent on the strength of the applied magnetic field (T-M1 decreases with increasing applied field) whereas the T-M3 is field independent. Otherwise, the T-M2 maximum almost disappears in higher applied magnetic fields (H = 1 kOe and 10 kOe). Magnetic measurements of M(H) show hysteretic behavior below T-M3. Moreover, hysteresis properties measured after cooling of the sample in magnetic field of 10 kOe show exchange bias effect with an exchange bias field vertical bar H-EB vertical bar= 196 Oe. In summary, the properties that distinguish the investigated NiMn2O4-delta sample from other bulk, thin film, ceramic and nanoparticle NiMn2O4-delta systems are the triple magnetic transitions with sharp increase of the ZFC and FC magnetizations at 120 K and the exchange bias effect. The analysis of the results and comparison with literature data allowed us to conjecture that the mixed oxidation states of Mn ions, ferromagnetic and antiferromagnetic sublattice orders and surface effects in the sample tailor these interesting magnetic properties.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Alloys and Compounds",
title = "Magnetic properties of NiMn2O4-delta (nickel manganite): Multiple magnetic phase transitions and exchange bias effect",
pages = "469-465",
volume = "588",
doi = "10.1016/j.jallcom.2013.11.025"
}

Tadic, M. M., Savić, S. M., Jaglicic, Z., Vojisavljević, K., Radojković, A., Perać, S.,& Nikolic, D.. (2014). Magnetic properties of NiMn2O4-delta (nickel manganite): Multiple magnetic phase transitions and exchange bias effect. in Journal of Alloys and Compounds
Elsevier Science Sa, Lausanne., 588, 465-469.
https://doi.org/10.1016/j.jallcom.2013.11.025

Tadic MM, Savić SM, Jaglicic Z, Vojisavljević K, Radojković A, Perać S, Nikolic D. Magnetic properties of NiMn2O4-delta (nickel manganite): Multiple magnetic phase transitions and exchange bias effect. in Journal of Alloys and Compounds. 2014;588:465-469.
doi:10.1016/j.jallcom.2013.11.025 .

Tadic, Marin M, Savić, Slavica M., Jaglicic, Zvonko, Vojisavljević, Katarina, Radojković, Aleksandar, Perać, Sanja, Nikolic, Dobrica, "Magnetic properties of NiMn2O4-delta (nickel manganite): Multiple magnetic phase transitions and exchange bias effect" in Journal of Alloys and Compounds, 588 (2014):465-469,
https://doi.org/10.1016/j.jallcom.2013.11.025 . .

TY  - JOUR
AU  - Radojković, Aleksandar
AU  - Savić, Slavica M.
AU  - Perać, Sanja
AU  - Branković, Zorica
AU  - Branković, Goran
PY  - 2014
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/762
AB  - Nb doped BaCe0.9Y0.1O2.95 (BCY) powders were synthesized by both solid state reaction (SSR) and autocombustion reaction (ACR) method to investigate how different synthesis routes influence the properties of the powders and sintered samples. The powders were uniaxially pressed and sintered at 1550 degrees C to form dense electrolyte samples. Stability of BCY in CO2 can be increased by doping with Nb, but at the same time its electrical conductivities are reduced to a certain extent. It was shown that conductivities depended on both mechanism of defect formation, lattice parameters and microstructure of the electrolytes. Finer, less agglomerated powders were obtained by the method of autocombustion. SEM analysis revealed somewhat larger average grain size of the sintered samples synthesized by the ACR method. Total electrical conductivities were determined by electrochemical impedance spectroscopy (EIS) measurements in temperature range from 550 degrees C to 750 degrees C in a wet argon atmosphere. Again, higher conductivities were observed for the samples obtained by the ACR method and in some cases the relative difference in conductivity exceeds 20%. Thus, a certain improvement of electrolyte properties can be achieved by this method compared to the classical solid- state reaction route.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Alloys and Compounds
T1  - Improved electrical properties of Nb doped BaCe0.9Y0.1O2.95 electrolyte for intermediate temperature SOFCs obtained by autocombustion method
EP  - 284
SP  - 278
VL  - 583
DO  - 10.1016/j.jallcom.2013.08.189
ER  - 

@article{
author = "Radojković, Aleksandar and Savić, Slavica M. and Perać, Sanja and Branković, Zorica and Branković, Goran",
year = "2014",
abstract = "Nb doped BaCe0.9Y0.1O2.95 (BCY) powders were synthesized by both solid state reaction (SSR) and autocombustion reaction (ACR) method to investigate how different synthesis routes influence the properties of the powders and sintered samples. The powders were uniaxially pressed and sintered at 1550 degrees C to form dense electrolyte samples. Stability of BCY in CO2 can be increased by doping with Nb, but at the same time its electrical conductivities are reduced to a certain extent. It was shown that conductivities depended on both mechanism of defect formation, lattice parameters and microstructure of the electrolytes. Finer, less agglomerated powders were obtained by the method of autocombustion. SEM analysis revealed somewhat larger average grain size of the sintered samples synthesized by the ACR method. Total electrical conductivities were determined by electrochemical impedance spectroscopy (EIS) measurements in temperature range from 550 degrees C to 750 degrees C in a wet argon atmosphere. Again, higher conductivities were observed for the samples obtained by the ACR method and in some cases the relative difference in conductivity exceeds 20%. Thus, a certain improvement of electrolyte properties can be achieved by this method compared to the classical solid- state reaction route.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Alloys and Compounds",
title = "Improved electrical properties of Nb doped BaCe0.9Y0.1O2.95 electrolyte for intermediate temperature SOFCs obtained by autocombustion method",
pages = "284-278",
volume = "583",
doi = "10.1016/j.jallcom.2013.08.189"
}

Radojković, A., Savić, S. M., Perać, S., Branković, Z.,& Branković, G.. (2014). Improved electrical properties of Nb doped BaCe0.9Y0.1O2.95 electrolyte for intermediate temperature SOFCs obtained by autocombustion method. in Journal of Alloys and Compounds
Elsevier Science Sa, Lausanne., 583, 278-284.
https://doi.org/10.1016/j.jallcom.2013.08.189

Radojković A, Savić SM, Perać S, Branković Z, Branković G. Improved electrical properties of Nb doped BaCe0.9Y0.1O2.95 electrolyte for intermediate temperature SOFCs obtained by autocombustion method. in Journal of Alloys and Compounds. 2014;583:278-284.
doi:10.1016/j.jallcom.2013.08.189 .

Radojković, Aleksandar, Savić, Slavica M., Perać, Sanja, Branković, Zorica, Branković, Goran, "Improved electrical properties of Nb doped BaCe0.9Y0.1O2.95 electrolyte for intermediate temperature SOFCs obtained by autocombustion method" in Journal of Alloys and Compounds, 583 (2014):278-284,
https://doi.org/10.1016/j.jallcom.2013.08.189 . .

TY  - JOUR
AU  - Savić, Slavica M.
AU  - Tadic, M.
AU  - Jaglicic, Z.
AU  - Vojisavljević, Katarina
AU  - Mančić, Lidija T
AU  - Branković, Goran
PY  - 2014
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/777
AB  - Structural, electrical and magnetic properties of nickel manganite ceramics obtained by sintering fine powders prepared by a complex polymerization method are given in this work. The phase composition of the synthesized material was examined by x-ray powder diffraction (XRPD). Field-emission scanning electron microscopy (FE-SEM) was used to analyze the obtained powder morphology. Scanning electron microscopy (SEM) was used to analyze the microstructure of sintered ceramics. The activation energy of conduction E-a and the coefficient of temperature sensitivity B-25/100 were calculated from direct current (DC) resistivity measurements. The magnetization dependence of temperature M(T) and alternating current (AC) susceptibility data obtained from SQUID measurements clearly demonstrate that quadruple magnetic phase transitions can be readily detected at T-M1 similar to 115 K, T-M2 similar to 105 K, T-M3 similar to 38 K and T-M4 similar to 7 K. These findings suggest a novel magnetic transition for nickel manganite at low temperature T-M4.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Structural, electrical and magnetic properties of nickel manganite obtained by a complex polymerization method
EP  - 15521
IS  - 10
SP  - 15515
VL  - 40
DO  - 10.1016/j.ceramint.2014.07.024
ER  - 

@article{
author = "Savić, Slavica M. and Tadic, M. and Jaglicic, Z. and Vojisavljević, Katarina and Mančić, Lidija T and Branković, Goran",
year = "2014",
abstract = "Structural, electrical and magnetic properties of nickel manganite ceramics obtained by sintering fine powders prepared by a complex polymerization method are given in this work. The phase composition of the synthesized material was examined by x-ray powder diffraction (XRPD). Field-emission scanning electron microscopy (FE-SEM) was used to analyze the obtained powder morphology. Scanning electron microscopy (SEM) was used to analyze the microstructure of sintered ceramics. The activation energy of conduction E-a and the coefficient of temperature sensitivity B-25/100 were calculated from direct current (DC) resistivity measurements. The magnetization dependence of temperature M(T) and alternating current (AC) susceptibility data obtained from SQUID measurements clearly demonstrate that quadruple magnetic phase transitions can be readily detected at T-M1 similar to 115 K, T-M2 similar to 105 K, T-M3 similar to 38 K and T-M4 similar to 7 K. These findings suggest a novel magnetic transition for nickel manganite at low temperature T-M4.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Structural, electrical and magnetic properties of nickel manganite obtained by a complex polymerization method",
pages = "15521-15515",
number = "10",
volume = "40",
doi = "10.1016/j.ceramint.2014.07.024"
}

Savić, S. M., Tadic, M., Jaglicic, Z., Vojisavljević, K., Mančić, L. T.,& Branković, G.. (2014). Structural, electrical and magnetic properties of nickel manganite obtained by a complex polymerization method. in Ceramics International
Elsevier Sci Ltd, Oxford., 40(10), 15515-15521.
https://doi.org/10.1016/j.ceramint.2014.07.024

Savić SM, Tadic M, Jaglicic Z, Vojisavljević K, Mančić LT, Branković G. Structural, electrical and magnetic properties of nickel manganite obtained by a complex polymerization method. in Ceramics International. 2014;40(10):15515-15521.
doi:10.1016/j.ceramint.2014.07.024 .

Savić, Slavica M., Tadic, M., Jaglicic, Z., Vojisavljević, Katarina, Mančić, Lidija T, Branković, Goran, "Structural, electrical and magnetic properties of nickel manganite obtained by a complex polymerization method" in Ceramics International, 40, no. 10 (2014):15515-15521,
https://doi.org/10.1016/j.ceramint.2014.07.024 . .

TY  - JOUR
AU  - Radojković, Aleksandar
AU  - Žunić, Milan
AU  - Savić, Slavica M.
AU  - Branković, Goran
AU  - Branković, Zorica
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/720
AB  - The influence of Ta concentration on the stability of BaCe(0.9-)xTa(x)Y(0.1)O(3-delta) (where x=0.01, 0.03 and 0.05) powders and sintered samples in CO2, their microstructure and electrical properties were investigated. The ceramic powders were synthesized by the method of solid state reaction, uniaxially pressed and sintered at 1550 degrees C to form dense electrolyte pellets. A significant stability in CO2 indicated by the X-ray analysis performed was observed for the samples with x >= 0.03. The electrical conductivities determined by impedance measurements in the temperature range of 550-750 degrees C and in various atmospheres (dry argon, wet argon and wet hydrogen) increased with temperature but decreased with Ta concentration. The highest conductivities were observed in the wet hydrogen atmosphere, followed by those in wet argon, while the lowest were obtained in the dry argon atmosphere for each dopant concentration. The composition with Ta content of 3 mol% showed satisfactory characteristics: good resistance to CO2 in extreme testing conditions, while a somewhat reduced electrical conductivity is still comparable with that of BaCe0.9Y0.1O3-delta.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Enhanced stability in CO2 of Ta doped BaCe0.9Y0.1O3-delta electrolyte for intermediate temperature SOFCs
EP  - 2637
IS  - 3
SP  - 2631
VL  - 39
DO  - 10.1016/j.ceramint.2012.09.028
ER  - 

@article{
author = "Radojković, Aleksandar and Žunić, Milan and Savić, Slavica M. and Branković, Goran and Branković, Zorica",
year = "2013",
abstract = "The influence of Ta concentration on the stability of BaCe(0.9-)xTa(x)Y(0.1)O(3-delta) (where x=0.01, 0.03 and 0.05) powders and sintered samples in CO2, their microstructure and electrical properties were investigated. The ceramic powders were synthesized by the method of solid state reaction, uniaxially pressed and sintered at 1550 degrees C to form dense electrolyte pellets. A significant stability in CO2 indicated by the X-ray analysis performed was observed for the samples with x >= 0.03. The electrical conductivities determined by impedance measurements in the temperature range of 550-750 degrees C and in various atmospheres (dry argon, wet argon and wet hydrogen) increased with temperature but decreased with Ta concentration. The highest conductivities were observed in the wet hydrogen atmosphere, followed by those in wet argon, while the lowest were obtained in the dry argon atmosphere for each dopant concentration. The composition with Ta content of 3 mol% showed satisfactory characteristics: good resistance to CO2 in extreme testing conditions, while a somewhat reduced electrical conductivity is still comparable with that of BaCe0.9Y0.1O3-delta.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Enhanced stability in CO2 of Ta doped BaCe0.9Y0.1O3-delta electrolyte for intermediate temperature SOFCs",
pages = "2637-2631",
number = "3",
volume = "39",
doi = "10.1016/j.ceramint.2012.09.028"
}

Radojković, A., Žunić, M., Savić, S. M., Branković, G.,& Branković, Z.. (2013). Enhanced stability in CO2 of Ta doped BaCe0.9Y0.1O3-delta electrolyte for intermediate temperature SOFCs. in Ceramics International
Elsevier Sci Ltd, Oxford., 39(3), 2631-2637.
https://doi.org/10.1016/j.ceramint.2012.09.028

Radojković A, Žunić M, Savić SM, Branković G, Branković Z. Enhanced stability in CO2 of Ta doped BaCe0.9Y0.1O3-delta electrolyte for intermediate temperature SOFCs. in Ceramics International. 2013;39(3):2631-2637.
doi:10.1016/j.ceramint.2012.09.028 .

Radojković, Aleksandar, Žunić, Milan, Savić, Slavica M., Branković, Goran, Branković, Zorica, "Enhanced stability in CO2 of Ta doped BaCe0.9Y0.1O3-delta electrolyte for intermediate temperature SOFCs" in Ceramics International, 39, no. 3 (2013):2631-2637,
https://doi.org/10.1016/j.ceramint.2012.09.028 . .

TY  - JOUR
AU  - Radojković, Aleksandar
AU  - Žunić, Milan
AU  - Savić, Slavica M.
AU  - Branković, Goran
AU  - Branković, Zorica
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/634
AB  - BaCe0.9-xNbxY0.1O3-delta (where x=0, 0.01, 0.03 and 0.05) powders were synthesized by solid-state reaction to investigate the influence of Nb concentration on chemical stability and electrical properties of the sintered samples. The dense electrolyte pellets were formed from the powders after being uniaxially pressed and sintered at 1550 degrees C. The electrical conductivities determined by impedance measurements in temperature range of 550-750 degrees C in different atmospheres (dry argon and wet hydrogen) showed a decreasing trend with an increase of Nb content. For all samples higher conductivities were observed in the wet hydrogen than in dry argon atmosphere. The chemical stability was enhanced with increasing of Nb concentration. It was found that BaCe0.87Nb0.03Y0.1O3-delta is the optimal composition that satisfies the opposite demands for electrical conductivity and chemical stability, reaching 0.8 x 10(-2) S cm(-1) in wet hydrogen at 650 degrees C compared to 1.01 x 10(-2) S cm(-1) for undoped electrolyte.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Chemical stability and electrical properties of Nb doped BaCe0.9Y0.1O3-delta as a high temperature proton conducting electrolyte for IT-SOFC
EP  - 313
IS  - 1
SP  - 307
VL  - 39
DO  - 10.1016/j.ceramint.2012.06.026
ER  - 

@article{
author = "Radojković, Aleksandar and Žunić, Milan and Savić, Slavica M. and Branković, Goran and Branković, Zorica",
year = "2013",
abstract = "BaCe0.9-xNbxY0.1O3-delta (where x=0, 0.01, 0.03 and 0.05) powders were synthesized by solid-state reaction to investigate the influence of Nb concentration on chemical stability and electrical properties of the sintered samples. The dense electrolyte pellets were formed from the powders after being uniaxially pressed and sintered at 1550 degrees C. The electrical conductivities determined by impedance measurements in temperature range of 550-750 degrees C in different atmospheres (dry argon and wet hydrogen) showed a decreasing trend with an increase of Nb content. For all samples higher conductivities were observed in the wet hydrogen than in dry argon atmosphere. The chemical stability was enhanced with increasing of Nb concentration. It was found that BaCe0.87Nb0.03Y0.1O3-delta is the optimal composition that satisfies the opposite demands for electrical conductivity and chemical stability, reaching 0.8 x 10(-2) S cm(-1) in wet hydrogen at 650 degrees C compared to 1.01 x 10(-2) S cm(-1) for undoped electrolyte.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Chemical stability and electrical properties of Nb doped BaCe0.9Y0.1O3-delta as a high temperature proton conducting electrolyte for IT-SOFC",
pages = "313-307",
number = "1",
volume = "39",
doi = "10.1016/j.ceramint.2012.06.026"
}

Radojković, A., Žunić, M., Savić, S. M., Branković, G.,& Branković, Z.. (2013). Chemical stability and electrical properties of Nb doped BaCe0.9Y0.1O3-delta as a high temperature proton conducting electrolyte for IT-SOFC. in Ceramics International
Elsevier Sci Ltd, Oxford., 39(1), 307-313.
https://doi.org/10.1016/j.ceramint.2012.06.026

Radojković A, Žunić M, Savić SM, Branković G, Branković Z. Chemical stability and electrical properties of Nb doped BaCe0.9Y0.1O3-delta as a high temperature proton conducting electrolyte for IT-SOFC. in Ceramics International. 2013;39(1):307-313.
doi:10.1016/j.ceramint.2012.06.026 .

Radojković, Aleksandar, Žunić, Milan, Savić, Slavica M., Branković, Goran, Branković, Zorica, "Chemical stability and electrical properties of Nb doped BaCe0.9Y0.1O3-delta as a high temperature proton conducting electrolyte for IT-SOFC" in Ceramics International, 39, no. 1 (2013):307-313,
https://doi.org/10.1016/j.ceramint.2012.06.026 . .

TY  - JOUR
AU  - Savić, Slavica M.
AU  - Nikolić, Maria Vesna
AU  - Paraskevopoulos, K.M.
AU  - Zorba, T.T.
AU  - Nikolić, Nenad
AU  - Blagojević, Vladimir D
AU  - Aleksić, Obrad
AU  - Branković, Goran
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/727
AB  - Nickel manganite powder synthesized by calcination of a stoichiometric mixture of manganese (MnO Aldrich 99.9%) and nickel oxide (NiO Merck, 99.5%) containing 0.5 wt% CoO and Fe2O3, was additionally mechanically activated in a high energy planetary ball mill for 5-60 min. The resulting powders were uniaxially pressed into disc shape pellets and then sintered for 60 min at 900 degrees C, 1050 degrees C and 1200 degrees C. Morphological changes of the obtained nickel manganite ceramics induced by mechanical activation were monitored using scanning electron microscopy, while changes in structural characteristics were followed using X-ray powder diffraction. Room temperature far infrared reflectivity spectra for all sintered samples were recorded in the frequency range between 50 cm(-1) land 1200 cm(-1). The observed spectra for all samples showed the presence of the same oscillators, but their intensities depended on the sintering temperature and the time of mechanical acivation. Transversal and longitudinal optical modes were calculated for six ionic oscillators (four strong, and two shoulders) belonging to the nickel manganite partially inverse spinel structure.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Far infrared and micro structural studies of mechanically activated nickel manganite
EP  - 1247
IS  - 2
SP  - 1241
VL  - 39
DO  - 10.1016/j.ceramint.2012.07.054
ER  - 

@article{
author = "Savić, Slavica M. and Nikolić, Maria Vesna and Paraskevopoulos, K.M. and Zorba, T.T. and Nikolić, Nenad and Blagojević, Vladimir D and Aleksić, Obrad and Branković, Goran",
year = "2013",
abstract = "Nickel manganite powder synthesized by calcination of a stoichiometric mixture of manganese (MnO Aldrich 99.9%) and nickel oxide (NiO Merck, 99.5%) containing 0.5 wt% CoO and Fe2O3, was additionally mechanically activated in a high energy planetary ball mill for 5-60 min. The resulting powders were uniaxially pressed into disc shape pellets and then sintered for 60 min at 900 degrees C, 1050 degrees C and 1200 degrees C. Morphological changes of the obtained nickel manganite ceramics induced by mechanical activation were monitored using scanning electron microscopy, while changes in structural characteristics were followed using X-ray powder diffraction. Room temperature far infrared reflectivity spectra for all sintered samples were recorded in the frequency range between 50 cm(-1) land 1200 cm(-1). The observed spectra for all samples showed the presence of the same oscillators, but their intensities depended on the sintering temperature and the time of mechanical acivation. Transversal and longitudinal optical modes were calculated for six ionic oscillators (four strong, and two shoulders) belonging to the nickel manganite partially inverse spinel structure.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Far infrared and micro structural studies of mechanically activated nickel manganite",
pages = "1247-1241",
number = "2",
volume = "39",
doi = "10.1016/j.ceramint.2012.07.054"
}

Savić, S. M., Nikolić, M. V., Paraskevopoulos, K.M., Zorba, T.T., Nikolić, N., Blagojević, V. D., Aleksić, O.,& Branković, G.. (2013). Far infrared and micro structural studies of mechanically activated nickel manganite. in Ceramics International
Elsevier Sci Ltd, Oxford., 39(2), 1241-1247.
https://doi.org/10.1016/j.ceramint.2012.07.054

Savić SM, Nikolić MV, Paraskevopoulos K, Zorba T, Nikolić N, Blagojević VD, Aleksić O, Branković G. Far infrared and micro structural studies of mechanically activated nickel manganite. in Ceramics International. 2013;39(2):1241-1247.
doi:10.1016/j.ceramint.2012.07.054 .

Savić, Slavica M., Nikolić, Maria Vesna, Paraskevopoulos, K.M., Zorba, T.T., Nikolić, Nenad, Blagojević, Vladimir D, Aleksić, Obrad, Branković, Goran, "Far infrared and micro structural studies of mechanically activated nickel manganite" in Ceramics International, 39, no. 2 (2013):1241-1247,
https://doi.org/10.1016/j.ceramint.2012.07.054 . .

TY  - JOUR
AU  - Savić, Slavica M.
AU  - Mančić, Lidija T
AU  - Vojisavljević, Katarina
AU  - Stojanović, Goran M
AU  - Branković, Zorica
AU  - Aleksić, Obrad
AU  - Branković, Goran
PY  - 2011
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/449
AB  - Nickel manganite powder synthesized by calcination of a stoichiometric mixture of manganese and nickel oxide was additionally mechanically activated in a high energy planetary ball mill for 5-60 min in order to obtain a pure NiMn2O4 phase. The as-prepared powders were uniaxially pressed into disc shape pellets and then sintered for 60 min at 1200 degrees C. Changes in the particle morphology induced by mechanical activation were monitored using scanning electron microscopy, while changes in powder structural characteristics were followed using X-ray powder diffraction. The ac impedance spectroscopy was performed on sintered nickel manganite samples at 25 degrees C, 50 degrees C and 80 degrees C. It was shown that mechanical activation intensifies transport processes causing a decrease in the average crystallites size, while longer activation times can lead to the formation of aggregates, defects and increase of lattice microstrains. The observed changes in microstructures were correlated with measured electrical properties in order to define optimal processing conditions.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Materials Research Bulletin
T1  - Microstructural and electrical changes in nickel manganite powder induced by mechanical activation
EP  - 1071
IS  - 7
SP  - 1065
VL  - 46
DO  - 10.1016/j.materresbull.2011.03.008
ER  - 

@article{
author = "Savić, Slavica M. and Mančić, Lidija T and Vojisavljević, Katarina and Stojanović, Goran M and Branković, Zorica and Aleksić, Obrad and Branković, Goran",
year = "2011",
abstract = "Nickel manganite powder synthesized by calcination of a stoichiometric mixture of manganese and nickel oxide was additionally mechanically activated in a high energy planetary ball mill for 5-60 min in order to obtain a pure NiMn2O4 phase. The as-prepared powders were uniaxially pressed into disc shape pellets and then sintered for 60 min at 1200 degrees C. Changes in the particle morphology induced by mechanical activation were monitored using scanning electron microscopy, while changes in powder structural characteristics were followed using X-ray powder diffraction. The ac impedance spectroscopy was performed on sintered nickel manganite samples at 25 degrees C, 50 degrees C and 80 degrees C. It was shown that mechanical activation intensifies transport processes causing a decrease in the average crystallites size, while longer activation times can lead to the formation of aggregates, defects and increase of lattice microstrains. The observed changes in microstructures were correlated with measured electrical properties in order to define optimal processing conditions.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Materials Research Bulletin",
title = "Microstructural and electrical changes in nickel manganite powder induced by mechanical activation",
pages = "1071-1065",
number = "7",
volume = "46",
doi = "10.1016/j.materresbull.2011.03.008"
}

Savić, S. M., Mančić, L. T., Vojisavljević, K., Stojanović, G. M., Branković, Z., Aleksić, O.,& Branković, G.. (2011). Microstructural and electrical changes in nickel manganite powder induced by mechanical activation. in Materials Research Bulletin
Pergamon-Elsevier Science Ltd, Oxford., 46(7), 1065-1071.
https://doi.org/10.1016/j.materresbull.2011.03.008

Savić SM, Mančić LT, Vojisavljević K, Stojanović GM, Branković Z, Aleksić O, Branković G. Microstructural and electrical changes in nickel manganite powder induced by mechanical activation. in Materials Research Bulletin. 2011;46(7):1065-1071.
doi:10.1016/j.materresbull.2011.03.008 .

Savić, Slavica M., Mančić, Lidija T, Vojisavljević, Katarina, Stojanović, Goran M, Branković, Zorica, Aleksić, Obrad, Branković, Goran, "Microstructural and electrical changes in nickel manganite powder induced by mechanical activation" in Materials Research Bulletin, 46, no. 7 (2011):1065-1071,
https://doi.org/10.1016/j.materresbull.2011.03.008 . .

TY  - JOUR
AU  - Savić, Slavica M.
AU  - Stojanović, Goran M
AU  - Nikolić, Maria Vesna
AU  - Aleksić, Obrad
AU  - Luković Golić, Danijela
AU  - Nikolić, Pantelija M.
PY  - 2009
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/369
AB  - Intrinsic resistivity and carrier transport parameters of sintered nickel manganite samples (NTC thermistor grade) were determined using a Hall effect measurement system based on the van der Pauw method. Powder mixtures composed of MnO, NiO and with small amounts of CoO and Fe(2)O(3) were free surface energy activated by milling in an ultra fast planetary mill for 5, 15, 30, 45 and 60 min. The powders were uniaxially pressed with 196 MPa into discs and sintered at 1200 A degrees C for 60 min. Full characterization of nickel manganite samples was done using SEM, EDS and XRD analysis. The Hall effect was measured at different temperatures (room temperature, 50, 80, 100 and 120 A degrees C) with an applied field of 0.37 T and also 0.57 T at room temperature. The activation energy E (a) (energy of conduction) and the coefficient of temperature sensitivity B (25/80), were calculated from measured resistivity values. The measured mobility, resistivity/conductivity, U-I plots, and Hall coefficients were mutually compared and correlated versus microstructure development and macroscopic parameters such as the powder activation time and ambient temperature.
PB  - Springer, Dordrecht
T2  - Journal of Materials Science-Materials in Electronics
T1  - Electrical and transport properties of nickel manganite obtained by Hall effect measurements
EP  - 247
IS  - 3
SP  - 242
VL  - 20
DO  - 10.1007/s10854-008-9710-5
ER  - 

@article{
author = "Savić, Slavica M. and Stojanović, Goran M and Nikolić, Maria Vesna and Aleksić, Obrad and Luković Golić, Danijela and Nikolić, Pantelija M.",
year = "2009",
abstract = "Intrinsic resistivity and carrier transport parameters of sintered nickel manganite samples (NTC thermistor grade) were determined using a Hall effect measurement system based on the van der Pauw method. Powder mixtures composed of MnO, NiO and with small amounts of CoO and Fe(2)O(3) were free surface energy activated by milling in an ultra fast planetary mill for 5, 15, 30, 45 and 60 min. The powders were uniaxially pressed with 196 MPa into discs and sintered at 1200 A degrees C for 60 min. Full characterization of nickel manganite samples was done using SEM, EDS and XRD analysis. The Hall effect was measured at different temperatures (room temperature, 50, 80, 100 and 120 A degrees C) with an applied field of 0.37 T and also 0.57 T at room temperature. The activation energy E (a) (energy of conduction) and the coefficient of temperature sensitivity B (25/80), were calculated from measured resistivity values. The measured mobility, resistivity/conductivity, U-I plots, and Hall coefficients were mutually compared and correlated versus microstructure development and macroscopic parameters such as the powder activation time and ambient temperature.",
publisher = "Springer, Dordrecht",
journal = "Journal of Materials Science-Materials in Electronics",
title = "Electrical and transport properties of nickel manganite obtained by Hall effect measurements",
pages = "247-242",
number = "3",
volume = "20",
doi = "10.1007/s10854-008-9710-5"
}

Savić, S. M., Stojanović, G. M., Nikolić, M. V., Aleksić, O., Luković Golić, D.,& Nikolić, P. M.. (2009). Electrical and transport properties of nickel manganite obtained by Hall effect measurements. in Journal of Materials Science-Materials in Electronics
Springer, Dordrecht., 20(3), 242-247.
https://doi.org/10.1007/s10854-008-9710-5

Savić SM, Stojanović GM, Nikolić MV, Aleksić O, Luković Golić D, Nikolić PM. Electrical and transport properties of nickel manganite obtained by Hall effect measurements. in Journal of Materials Science-Materials in Electronics. 2009;20(3):242-247.
doi:10.1007/s10854-008-9710-5 .

Savić, Slavica M., Stojanović, Goran M, Nikolić, Maria Vesna, Aleksić, Obrad, Luković Golić, Danijela, Nikolić, Pantelija M., "Electrical and transport properties of nickel manganite obtained by Hall effect measurements" in Journal of Materials Science-Materials in Electronics, 20, no. 3 (2009):242-247,
https://doi.org/10.1007/s10854-008-9710-5 . .

TY  - JOUR
AU  - Aleksić, Obrad
AU  - Savić, Slavica M.
AU  - Nikolić, Maria Vesna
AU  - Sibinoski, Latko Z.
AU  - Luković, Miloljub
PY  - 2009
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/371
AB  - Purpose - The purpose of this paper is to apply negative thermal coefficient (NTC) thick film segmented thermistors (TFSTs) in a micro-flow sensor for water. Design/methodology/approach - A TFST is printed using NTC paste based on nickel manganite. The resistance of this thermistor is measured in a climatic chamber and the resulting curves are calibrated. A micro-flow sensor is designed using a self-heated segmented thermistor. The sensing principle is based on heat loss depending on the water flow intensity through the capillary. Water flow calibration is performed. The sensor sensitivity, inertia, and stability are analyzed. Findings - The micro-flow sensor exhibits good stability, suitable sensitivity and inertia for integral measurements of water flow. Practical implications - Advantages of a micro-flow sensor using a TFST include low energy consumption, simple measuring procedure, and passive electronics. Originality/value - This paper describes initial work on a micro-flow sensor for water using TFSTs.
PB  - Emerald Group Publishing Ltd, Bingley
T2  - Microelectronics International
T1  - Micro-flow sensor for water using NTC thick film segmented thermistors
EP  - 34
IS  - 3
SP  - 30
VL  - 26
DO  - 10.1108/13565360910981535
ER  - 

@article{
author = "Aleksić, Obrad and Savić, Slavica M. and Nikolić, Maria Vesna and Sibinoski, Latko Z. and Luković, Miloljub",
year = "2009",
abstract = "Purpose - The purpose of this paper is to apply negative thermal coefficient (NTC) thick film segmented thermistors (TFSTs) in a micro-flow sensor for water. Design/methodology/approach - A TFST is printed using NTC paste based on nickel manganite. The resistance of this thermistor is measured in a climatic chamber and the resulting curves are calibrated. A micro-flow sensor is designed using a self-heated segmented thermistor. The sensing principle is based on heat loss depending on the water flow intensity through the capillary. Water flow calibration is performed. The sensor sensitivity, inertia, and stability are analyzed. Findings - The micro-flow sensor exhibits good stability, suitable sensitivity and inertia for integral measurements of water flow. Practical implications - Advantages of a micro-flow sensor using a TFST include low energy consumption, simple measuring procedure, and passive electronics. Originality/value - This paper describes initial work on a micro-flow sensor for water using TFSTs.",
publisher = "Emerald Group Publishing Ltd, Bingley",
journal = "Microelectronics International",
title = "Micro-flow sensor for water using NTC thick film segmented thermistors",
pages = "34-30",
number = "3",
volume = "26",
doi = "10.1108/13565360910981535"
}

Aleksić, O., Savić, S. M., Nikolić, M. V., Sibinoski, L. Z.,& Luković, M.. (2009). Micro-flow sensor for water using NTC thick film segmented thermistors. in Microelectronics International
Emerald Group Publishing Ltd, Bingley., 26(3), 30-34.
https://doi.org/10.1108/13565360910981535

Aleksić O, Savić SM, Nikolić MV, Sibinoski LZ, Luković M. Micro-flow sensor for water using NTC thick film segmented thermistors. in Microelectronics International. 2009;26(3):30-34.
doi:10.1108/13565360910981535 .

Aleksić, Obrad, Savić, Slavica M., Nikolić, Maria Vesna, Sibinoski, Latko Z., Luković, Miloljub, "Micro-flow sensor for water using NTC thick film segmented thermistors" in Microelectronics International, 26, no. 3 (2009):30-34,
https://doi.org/10.1108/13565360910981535 . .

TY  - CONF
AU  - Menicanin, Aleksandar
AU  - Aleksić, Obrad
AU  - Nikolić, Maria Vesna
AU  - Savić, Slavica M.
AU  - Radojcic, Branka M
PY  - 2008
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/255
AB  - A novel uniaxial anemometer was created using a NTC thick film segmented therinistor to measure wind speed and direction. The anemometer operated on the principle of heat loss caused by the air volume flow and air speed. A NTC segmented thermistor served as a wind sensor in the anemometer. It was self-heated by a DC constant voltage. The self-heated DC current through the thermistor was changed by heat loss due to resistivity changes. The wind speed was varied from I to 15 m/s for different input air temperatures in the range of -20 to +40'degrees C. The wind direction was determined by measuring voltage differences on the inner electrodes of the NTC segmented thermistor. The air temperature was measure by a cold NTC thick film segmented thermistor calibrated in the claim chamber. Anemometar inertia was measured at room temperature (at 25 degrees C) and normal room humidity (at 50%). The results obtained enable fast optimization and implementation of a uniaxial anemometer in a 3D anemometer.
PB  - IEEE, New York
C3  - 2008 26th International Conference on Microelectronics, Vols 1 and 2, Proceedings
T1  - Novel uniaxial anemometer containing NTC thick film segmented thermistors
SP  - 349
DO  - 10.1109/ICMEL.2008.4559293
ER  - 

@conference{
author = "Menicanin, Aleksandar and Aleksić, Obrad and Nikolić, Maria Vesna and Savić, Slavica M. and Radojcic, Branka M",
year = "2008",
abstract = "A novel uniaxial anemometer was created using a NTC thick film segmented therinistor to measure wind speed and direction. The anemometer operated on the principle of heat loss caused by the air volume flow and air speed. A NTC segmented thermistor served as a wind sensor in the anemometer. It was self-heated by a DC constant voltage. The self-heated DC current through the thermistor was changed by heat loss due to resistivity changes. The wind speed was varied from I to 15 m/s for different input air temperatures in the range of -20 to +40'degrees C. The wind direction was determined by measuring voltage differences on the inner electrodes of the NTC segmented thermistor. The air temperature was measure by a cold NTC thick film segmented thermistor calibrated in the claim chamber. Anemometar inertia was measured at room temperature (at 25 degrees C) and normal room humidity (at 50%). The results obtained enable fast optimization and implementation of a uniaxial anemometer in a 3D anemometer.",
publisher = "IEEE, New York",
journal = "2008 26th International Conference on Microelectronics, Vols 1 and 2, Proceedings",
title = "Novel uniaxial anemometer containing NTC thick film segmented thermistors",
pages = "349",
doi = "10.1109/ICMEL.2008.4559293"
}

Menicanin, A., Aleksić, O., Nikolić, M. V., Savić, S. M.,& Radojcic, B. M.. (2008). Novel uniaxial anemometer containing NTC thick film segmented thermistors. in 2008 26th International Conference on Microelectronics, Vols 1 and 2, Proceedings
IEEE, New York., 349.
https://doi.org/10.1109/ICMEL.2008.4559293

Menicanin A, Aleksić O, Nikolić MV, Savić SM, Radojcic BM. Novel uniaxial anemometer containing NTC thick film segmented thermistors. in 2008 26th International Conference on Microelectronics, Vols 1 and 2, Proceedings. 2008;:349.
doi:10.1109/ICMEL.2008.4559293 .

Menicanin, Aleksandar, Aleksić, Obrad, Nikolić, Maria Vesna, Savić, Slavica M., Radojcic, Branka M, "Novel uniaxial anemometer containing NTC thick film segmented thermistors" in 2008 26th International Conference on Microelectronics, Vols 1 and 2, Proceedings (2008):349,
https://doi.org/10.1109/ICMEL.2008.4559293 . .

TY  - JOUR
AU  - Nikolić, Pantelija M.
AU  - Luković Golić, Danijela
AU  - Nikolić, Maria Vesna
AU  - Djuric, S.
AU  - Savić, Slavica M.
AU  - Milovanović, A. M.
AU  - Dukic, S. R.
AU  - Stamenović, B.
PY  - 2008
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/258
AB  - A single p-type crystal of the mineral, pyrite ( FeS2) was characterized photoacoustically using the transmission detection configuration. Photoacoustic ( PA) amplitude and phase spectra were measured using a specially constructed PA cell. The PA signals of different sample thicknesses were measured using an experimental setup with a semiconductor red laser ( 80mW) as the optical source. The obtained amplitude and phase spectra for different thicknesses were numerically analyzed enabling determination of thermal diffusivity, mobility of minority free carriers and other parameters characteristic for this material.
PB  - Springer Heidelberg, Heidelberg
T2  - European Physical Journal-Special Topics
T1  - Photoacoustic characterization of natural mineral pyrite (FeS2)
EP  - 189
SP  - 187
VL  - 153
DO  - 10.1140/epjst/e2008-00424-6
ER  - 

@article{
author = "Nikolić, Pantelija M. and Luković Golić, Danijela and Nikolić, Maria Vesna and Djuric, S. and Savić, Slavica M. and Milovanović, A. M. and Dukic, S. R. and Stamenović, B.",
year = "2008",
abstract = "A single p-type crystal of the mineral, pyrite ( FeS2) was characterized photoacoustically using the transmission detection configuration. Photoacoustic ( PA) amplitude and phase spectra were measured using a specially constructed PA cell. The PA signals of different sample thicknesses were measured using an experimental setup with a semiconductor red laser ( 80mW) as the optical source. The obtained amplitude and phase spectra for different thicknesses were numerically analyzed enabling determination of thermal diffusivity, mobility of minority free carriers and other parameters characteristic for this material.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "European Physical Journal-Special Topics",
title = "Photoacoustic characterization of natural mineral pyrite (FeS2)",
pages = "189-187",
volume = "153",
doi = "10.1140/epjst/e2008-00424-6"
}

Nikolić, P. M., Luković Golić, D., Nikolić, M. V., Djuric, S., Savić, S. M., Milovanović, A. M., Dukic, S. R.,& Stamenović, B.. (2008). Photoacoustic characterization of natural mineral pyrite (FeS2). in European Physical Journal-Special Topics
Springer Heidelberg, Heidelberg., 153, 187-189.
https://doi.org/10.1140/epjst/e2008-00424-6

Nikolić PM, Luković Golić D, Nikolić MV, Djuric S, Savić SM, Milovanović AM, Dukic SR, Stamenović B. Photoacoustic characterization of natural mineral pyrite (FeS2). in European Physical Journal-Special Topics. 2008;153:187-189.
doi:10.1140/epjst/e2008-00424-6 .

Nikolić, Pantelija M., Luković Golić, Danijela, Nikolić, Maria Vesna, Djuric, S., Savić, Slavica M., Milovanović, A. M., Dukic, S. R., Stamenović, B., "Photoacoustic characterization of natural mineral pyrite (FeS2)" in European Physical Journal-Special Topics, 153 (2008):187-189,
https://doi.org/10.1140/epjst/e2008-00424-6 . .

TY  - JOUR
AU  - Nikolić, Pantelija M.
AU  - Luković Golić, Danijela
AU  - Savić, Slavica M.
AU  - Milovanović, A. M.
AU  - Dukic, S. R.
AU  - Nikolić, Maria Vesna
AU  - Stamenović, B.
PY  - 2008
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/257
AB  - The thermal diffusivity and free carrier diffusion coefficient of 12CaO x 7 Al2O3 ( C12A7) sintered for different times in air or hydrogen followed by treatment with UV light were determined from photoacoustic phase and amplitude spectra obtained using the photoacoustic method with a transmission detection configuration. The influence of the sintering time on the values of the obtained parameters was analyzed and also the different sintering procedures.
PB  - Springer Heidelberg, Heidelberg
T2  - European Physical Journal-Special Topics
T1  - Thermal diffusivity of sintered 12CaO x 7Al(2)O(3)
EP  - 186
SP  - 183
VL  - 153
DO  - 10.1140/epjst/e2008-00423-7
ER  - 

@article{
author = "Nikolić, Pantelija M. and Luković Golić, Danijela and Savić, Slavica M. and Milovanović, A. M. and Dukic, S. R. and Nikolić, Maria Vesna and Stamenović, B.",
year = "2008",
abstract = "The thermal diffusivity and free carrier diffusion coefficient of 12CaO x 7 Al2O3 ( C12A7) sintered for different times in air or hydrogen followed by treatment with UV light were determined from photoacoustic phase and amplitude spectra obtained using the photoacoustic method with a transmission detection configuration. The influence of the sintering time on the values of the obtained parameters was analyzed and also the different sintering procedures.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "European Physical Journal-Special Topics",
title = "Thermal diffusivity of sintered 12CaO x 7Al(2)O(3)",
pages = "186-183",
volume = "153",
doi = "10.1140/epjst/e2008-00423-7"
}

Nikolić, P. M., Luković Golić, D., Savić, S. M., Milovanović, A. M., Dukic, S. R., Nikolić, M. V.,& Stamenović, B.. (2008). Thermal diffusivity of sintered 12CaO x 7Al(2)O(3). in European Physical Journal-Special Topics
Springer Heidelberg, Heidelberg., 153, 183-186.
https://doi.org/10.1140/epjst/e2008-00423-7

Nikolić PM, Luković Golić D, Savić SM, Milovanović AM, Dukic SR, Nikolić MV, Stamenović B. Thermal diffusivity of sintered 12CaO x 7Al(2)O(3). in European Physical Journal-Special Topics. 2008;153:183-186.
doi:10.1140/epjst/e2008-00423-7 .

Nikolić, Pantelija M., Luković Golić, Danijela, Savić, Slavica M., Milovanović, A. M., Dukic, S. R., Nikolić, Maria Vesna, Stamenović, B., "Thermal diffusivity of sintered 12CaO x 7Al(2)O(3)" in European Physical Journal-Special Topics, 153 (2008):183-186,
https://doi.org/10.1140/epjst/e2008-00423-7 . .

TY  - JOUR
AU  - Savić, Slavica M.
AU  - Nikolić, Maria Vesna
AU  - Aleksić, Obrad
AU  - Slankamenac, Milos P
AU  - Živanov, M.
AU  - Nikolić, Pantelija M.
PY  - 2008
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/260
AB  - In this work the DC resistivity of sintered nickel manganite NiMn2O4 (NTC thermistor material) was studied as a function of additional powder activation time in a planetary ball mill (0, 5, 15, 30, 45 and 60 min). The activated powders and non-activated powder were sintered at different temperatures (900, 1050 and 1200 degrees C) for an hour. Structural changes were analyzed using XRD. Sample density, porosity and DC resistivity were measured on the same sintered samples. Correlations between sample density, porosity, and intrinsic DC resistivity vs. additional powder activation time and the sintering temperature were made. It was noticed that the resistivity falls with the increase of sample density (or increase of the sintering temperature).
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Intrinsic resistivity of sintered nickel manganite vs. powder activation time and density
EP  - 32
IS  - 1
SP  - 27
VL  - 40
DO  - 10.2298/SOS0801027S
ER  - 

@article{
author = "Savić, Slavica M. and Nikolić, Maria Vesna and Aleksić, Obrad and Slankamenac, Milos P and Živanov, M. and Nikolić, Pantelija M.",
year = "2008",
abstract = "In this work the DC resistivity of sintered nickel manganite NiMn2O4 (NTC thermistor material) was studied as a function of additional powder activation time in a planetary ball mill (0, 5, 15, 30, 45 and 60 min). The activated powders and non-activated powder were sintered at different temperatures (900, 1050 and 1200 degrees C) for an hour. Structural changes were analyzed using XRD. Sample density, porosity and DC resistivity were measured on the same sintered samples. Correlations between sample density, porosity, and intrinsic DC resistivity vs. additional powder activation time and the sintering temperature were made. It was noticed that the resistivity falls with the increase of sample density (or increase of the sintering temperature).",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Intrinsic resistivity of sintered nickel manganite vs. powder activation time and density",
pages = "32-27",
number = "1",
volume = "40",
doi = "10.2298/SOS0801027S"
}

Savić, S. M., Nikolić, M. V., Aleksić, O., Slankamenac, M. P., Živanov, M.,& Nikolić, P. M.. (2008). Intrinsic resistivity of sintered nickel manganite vs. powder activation time and density. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 40(1), 27-32.
https://doi.org/10.2298/SOS0801027S

Savić SM, Nikolić MV, Aleksić O, Slankamenac MP, Živanov M, Nikolić PM. Intrinsic resistivity of sintered nickel manganite vs. powder activation time and density. in Science of Sintering. 2008;40(1):27-32.
doi:10.2298/SOS0801027S .

Savić, Slavica M., Nikolić, Maria Vesna, Aleksić, Obrad, Slankamenac, Milos P, Živanov, M., Nikolić, Pantelija M., "Intrinsic resistivity of sintered nickel manganite vs. powder activation time and density" in Science of Sintering, 40, no. 1 (2008):27-32,
https://doi.org/10.2298/SOS0801027S . .