TY  - JOUR
AU  - Stevanović, Sanja I.
AU  - Tripković, Dusan
AU  - Gavrilovic-Wohlmuther, Aleksandra
AU  - Rogan, Jelena
AU  - Lačnjevac, Uroš
AU  - Jovanović, Vladislava
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1445
AB  - Pt, PtSn and PtSnO2 catalysts supported on high surface area carbon synthesized by microwave assisted polyol procedure were tested for methanol oxidation. Based on TGA, EDX and XRD analysis, PtSn/C is composed of Pt and Pt3Sn phase while the rest of Sn is present in a form of very small tin oxide particles. This paper focuses on structure-activity relationships for CO tolerance and methanol oxidation reactions after addition of Sn to Pt catalysts. Alloying of Sn with Pt improves the rate of CO oxidation despite the fact that the pure Sn does not react with CO and therefore activity for methanol oxidation increases similar to 2 times in comparison to Pt/C catalyst. PtSn/C catalyst shows small advantage in comparison with PtSnO2/C catalyst due to the alloyed Sn and its electronic effect. Long term stability tests also confirmed that PtSn/C catalyst is somewhat better in comparison to PtSnO2/C.
PB  - Electrochemical Science Group, Beograd
T2  - International Journal of Electrochemical Science
T1  - Carbon Supported PtSn versus PtSnO2 Catalysts in Methanol Oxidation
IS  - 2
VL  - 16
DO  - 10.20964/2021.02.55
ER  - 

@article{
author = "Stevanović, Sanja I. and Tripković, Dusan and Gavrilovic-Wohlmuther, Aleksandra and Rogan, Jelena and Lačnjevac, Uroš and Jovanović, Vladislava",
year = "2021",
abstract = "Pt, PtSn and PtSnO2 catalysts supported on high surface area carbon synthesized by microwave assisted polyol procedure were tested for methanol oxidation. Based on TGA, EDX and XRD analysis, PtSn/C is composed of Pt and Pt3Sn phase while the rest of Sn is present in a form of very small tin oxide particles. This paper focuses on structure-activity relationships for CO tolerance and methanol oxidation reactions after addition of Sn to Pt catalysts. Alloying of Sn with Pt improves the rate of CO oxidation despite the fact that the pure Sn does not react with CO and therefore activity for methanol oxidation increases similar to 2 times in comparison to Pt/C catalyst. PtSn/C catalyst shows small advantage in comparison with PtSnO2/C catalyst due to the alloyed Sn and its electronic effect. Long term stability tests also confirmed that PtSn/C catalyst is somewhat better in comparison to PtSnO2/C.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "Carbon Supported PtSn versus PtSnO2 Catalysts in Methanol Oxidation",
number = "2",
volume = "16",
doi = "10.20964/2021.02.55"
}

Stevanović, S. I., Tripković, D., Gavrilovic-Wohlmuther, A., Rogan, J., Lačnjevac, U.,& Jovanović, V.. (2021). Carbon Supported PtSn versus PtSnO2 Catalysts in Methanol Oxidation. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 16(2).
https://doi.org/10.20964/2021.02.55

Stevanović SI, Tripković D, Gavrilovic-Wohlmuther A, Rogan J, Lačnjevac U, Jovanović V. Carbon Supported PtSn versus PtSnO2 Catalysts in Methanol Oxidation. in International Journal of Electrochemical Science. 2021;16(2).
doi:10.20964/2021.02.55 .

Stevanović, Sanja I., Tripković, Dusan, Gavrilovic-Wohlmuther, Aleksandra, Rogan, Jelena, Lačnjevac, Uroš, Jovanović, Vladislava, "Carbon Supported PtSn versus PtSnO2 Catalysts in Methanol Oxidation" in International Journal of Electrochemical Science, 16, no. 2 (2021),
https://doi.org/10.20964/2021.02.55 . .

TY  - JOUR
AU  - Stevanović, Sanja I.
AU  - Lekka, Maria
AU  - Lanzutti, Alex
AU  - Tasić, Nikola
AU  - Živković, Ljiljana S.
AU  - Fedrizzi, Lorenzo
AU  - Bajat, Jelena B.
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1377
AB  - Cerium-based conversion coatings have emerged as promising green alternatives to the harmful chromium-based ones, but the mechanism of corrosive protection still remains a subject of academic and industrial research. This study focuses at small scale phenomena of corrosion inhibition imparted by ceria (CeO2) to AA7075. Ceria nanoparticles were deposited from diluted and concentrated CeO2 sols by immersion. A multi-analytical approach, combining Atomic Force microscopy (AFM), Scanning Kelvin Probe Force Microscopy, Glow Discharge Optical Emission Spectroscopy, open circuit potential and electrochemical impedance spectroscopy was employed. Deposition of ceria films led to deactivation of cathodic sites, i.e. decreased Volta potential difference, resulting in increased corrosion inhibition. In situ AFM real-time monitoring revealed that during exposure to NaCl electrolyte, the changes in size of deposited ceria aggregates occurred: nanoparticles disintegrated/desorbed and re-deposited at the coating surface. The process was found to be dynamic in nature. Small particles size and inherent reactivity are believed to accelerate this phenomenon. Due to the greater CeO2 reservoir, this phenomenon was more pronounced with a thicker film, imparting longer term protection.
PB  - Electrochemical Soc Inc, Pennington
T2  - Journal of the Electrochemical Society
T1  - Real-Time AFM and Impedance Corrosion Monitoring of Environmentally Friendly Ceria Films on AA7075
IS  - 10
VL  - 167
DO  - 10.1149/1945-7111/ab98af
ER  - 

@article{
author = "Stevanović, Sanja I. and Lekka, Maria and Lanzutti, Alex and Tasić, Nikola and Živković, Ljiljana S. and Fedrizzi, Lorenzo and Bajat, Jelena B.",
year = "2020",
abstract = "Cerium-based conversion coatings have emerged as promising green alternatives to the harmful chromium-based ones, but the mechanism of corrosive protection still remains a subject of academic and industrial research. This study focuses at small scale phenomena of corrosion inhibition imparted by ceria (CeO2) to AA7075. Ceria nanoparticles were deposited from diluted and concentrated CeO2 sols by immersion. A multi-analytical approach, combining Atomic Force microscopy (AFM), Scanning Kelvin Probe Force Microscopy, Glow Discharge Optical Emission Spectroscopy, open circuit potential and electrochemical impedance spectroscopy was employed. Deposition of ceria films led to deactivation of cathodic sites, i.e. decreased Volta potential difference, resulting in increased corrosion inhibition. In situ AFM real-time monitoring revealed that during exposure to NaCl electrolyte, the changes in size of deposited ceria aggregates occurred: nanoparticles disintegrated/desorbed and re-deposited at the coating surface. The process was found to be dynamic in nature. Small particles size and inherent reactivity are believed to accelerate this phenomenon. Due to the greater CeO2 reservoir, this phenomenon was more pronounced with a thicker film, imparting longer term protection.",
publisher = "Electrochemical Soc Inc, Pennington",
journal = "Journal of the Electrochemical Society",
title = "Real-Time AFM and Impedance Corrosion Monitoring of Environmentally Friendly Ceria Films on AA7075",
number = "10",
volume = "167",
doi = "10.1149/1945-7111/ab98af"
}

Stevanović, S. I., Lekka, M., Lanzutti, A., Tasić, N., Živković, L. S., Fedrizzi, L.,& Bajat, J. B.. (2020). Real-Time AFM and Impedance Corrosion Monitoring of Environmentally Friendly Ceria Films on AA7075. in Journal of the Electrochemical Society
Electrochemical Soc Inc, Pennington., 167(10).
https://doi.org/10.1149/1945-7111/ab98af

Stevanović SI, Lekka M, Lanzutti A, Tasić N, Živković LS, Fedrizzi L, Bajat JB. Real-Time AFM and Impedance Corrosion Monitoring of Environmentally Friendly Ceria Films on AA7075. in Journal of the Electrochemical Society. 2020;167(10).
doi:10.1149/1945-7111/ab98af .

Stevanović, Sanja I., Lekka, Maria, Lanzutti, Alex, Tasić, Nikola, Živković, Ljiljana S., Fedrizzi, Lorenzo, Bajat, Jelena B., "Real-Time AFM and Impedance Corrosion Monitoring of Environmentally Friendly Ceria Films on AA7075" in Journal of the Electrochemical Society, 167, no. 10 (2020),
https://doi.org/10.1149/1945-7111/ab98af . .

TY  - JOUR
AU  - Krstajic-Pajic, M. N.
AU  - Stevanović, Sanja I.
AU  - Radmilović, Velimir R
AU  - Gavrilovic-Wohlmuther, Aleksandra
AU  - Zabinski, P.
AU  - Elezović, Nevenka R.
AU  - Radmilović, Vuk V.
AU  - Gojković, Snežana Lj
AU  - Jovanović, V. M.
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1218
AB  - Low loading PtAu nanoparticles supported on high area carbon were synthesized by water-in-oil microemulsion method and examined for formic acid and methanol oxidation. Prepared catalyst powder was characterized by Xray diffraction (XRD), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). These techniques revealed that the catalyst contains rather agglomerated quasi-spherical particles, similar to 4 nm diameter, composed of a solid solution of Pt and Au with only similar to 4 at% of Au. In spite of such low Au content, both onset and peak potentials for CO oxidation are shifted some 150 mV to more positive values in comparison to Pt synthesized in the same manner due to stronger binding of CO as a result of notable electronic effect. It is important that this small quantity of Au also significantly influences oxidation of formic acid promoting direct path and suppressing indirect path in formic acid oxidation in a degree as expected by a much larger quantity of Au. Such improvement could be due exclusively by ensemble effect of high number of small Pt domains which formation could be possible only by very fine dispersion of such low Au quantity. High number of small Pt domains is corroborated by lower activity for methanol oxidation in comparison to Pt catalyst synthesized by the same procedure. These results emphasize the importance of the Au dispersion on the surface of Pt over its quantity in PtAu catalyst with regards to both, the ensemble and the electronic effects.
PB  - Elsevier Science Bv, Amsterdam
T2  - Applied Catalysis B-Environmental
T1  - Dispersion effect in formic acid oxidation on PtAu/C nanocatalyst prepared by water-in-oil microemulsion method
EP  - 593
SP  - 585
VL  - 243
DO  - 10.1016/j.apcatb.2018.10.064
ER  - 

@article{
author = "Krstajic-Pajic, M. N. and Stevanović, Sanja I. and Radmilović, Velimir R and Gavrilovic-Wohlmuther, Aleksandra and Zabinski, P. and Elezović, Nevenka R. and Radmilović, Vuk V. and Gojković, Snežana Lj and Jovanović, V. M.",
year = "2019",
abstract = "Low loading PtAu nanoparticles supported on high area carbon were synthesized by water-in-oil microemulsion method and examined for formic acid and methanol oxidation. Prepared catalyst powder was characterized by Xray diffraction (XRD), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). These techniques revealed that the catalyst contains rather agglomerated quasi-spherical particles, similar to 4 nm diameter, composed of a solid solution of Pt and Au with only similar to 4 at% of Au. In spite of such low Au content, both onset and peak potentials for CO oxidation are shifted some 150 mV to more positive values in comparison to Pt synthesized in the same manner due to stronger binding of CO as a result of notable electronic effect. It is important that this small quantity of Au also significantly influences oxidation of formic acid promoting direct path and suppressing indirect path in formic acid oxidation in a degree as expected by a much larger quantity of Au. Such improvement could be due exclusively by ensemble effect of high number of small Pt domains which formation could be possible only by very fine dispersion of such low Au quantity. High number of small Pt domains is corroborated by lower activity for methanol oxidation in comparison to Pt catalyst synthesized by the same procedure. These results emphasize the importance of the Au dispersion on the surface of Pt over its quantity in PtAu catalyst with regards to both, the ensemble and the electronic effects.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Applied Catalysis B-Environmental",
title = "Dispersion effect in formic acid oxidation on PtAu/C nanocatalyst prepared by water-in-oil microemulsion method",
pages = "593-585",
volume = "243",
doi = "10.1016/j.apcatb.2018.10.064"
}

Krstajic-Pajic, M. N., Stevanović, S. I., Radmilović, V. R., Gavrilovic-Wohlmuther, A., Zabinski, P., Elezović, N. R., Radmilović, V. V., Gojković, S. L.,& Jovanović, V. M.. (2019). Dispersion effect in formic acid oxidation on PtAu/C nanocatalyst prepared by water-in-oil microemulsion method. in Applied Catalysis B-Environmental
Elsevier Science Bv, Amsterdam., 243, 585-593.
https://doi.org/10.1016/j.apcatb.2018.10.064

Krstajic-Pajic MN, Stevanović SI, Radmilović VR, Gavrilovic-Wohlmuther A, Zabinski P, Elezović NR, Radmilović VV, Gojković SL, Jovanović VM. Dispersion effect in formic acid oxidation on PtAu/C nanocatalyst prepared by water-in-oil microemulsion method. in Applied Catalysis B-Environmental. 2019;243:585-593.
doi:10.1016/j.apcatb.2018.10.064 .

Krstajic-Pajic, M. N., Stevanović, Sanja I., Radmilović, Velimir R, Gavrilovic-Wohlmuther, Aleksandra, Zabinski, P., Elezović, Nevenka R., Radmilović, Vuk V., Gojković, Snežana Lj, Jovanović, V. M., "Dispersion effect in formic acid oxidation on PtAu/C nanocatalyst prepared by water-in-oil microemulsion method" in Applied Catalysis B-Environmental, 243 (2019):585-593,
https://doi.org/10.1016/j.apcatb.2018.10.064 . .

TY  - JOUR
AU  - Tripković, D.
AU  - Stevanović, Sanja I.
AU  - Gavrilović, A.
AU  - Rogan, Jelena
AU  - Lačnjevac, Uroš
AU  - Kravić, T.
AU  - Jovanović, V. M.
PY  - 2018
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1118
AB  - In our previous paper, we described in detail studies of Sn influence on electrocatalytic activity of PtSn catalyst for CO and formic acid oxidation (StevanoviAc et al., J. Phys. Chem. C, 118 (2014) 278-289). The catalyst was composed of a Pt phase, Pt3Sn alloy and very small SnO2 particles. Different electrochemical treatment enabled studies of PtSn/C having Sn both in surface and subsurface layers and skeleton structure of this catalyst with Sn only in subsurface layers. The results obtained revealed the promotional effect of surface Sn whether alloyed or as oxide above all in preventing accumulation of CO and blocking the surface Pt atoms. As a consequence, in formic acid oxidation, the currents are not entering the plateau but increasing constantly until reaching a maximum. It was concluded that at lower potentials the effect of Sn on formic acid oxidation was predominantly electronic but with increasing the potential bi-functional mechanism prevailed due to the leading role of SnO2. This role of SnO2 is restated in the present study. Therefore, CO and formic acid oxidation were examined at PtSnO2/C catalyst. The catalyst was synthesised by the same microwave-assisted polyol procedure. According to XRD analysis, the catalyst is composed of a Pt phase and SnO2 phase. The reactions were examined on PtSnO2/C catalyst treated on the same way as PtSn/C. Comparing the results obtained, the role of SnO2 is confirmed and at the same time the significance of alloyed Sn and its electronic effect is revealed.
PB  - Springer, New York
T2  - Electrocatalysis
T1  - The Role of SnO2 on Electrocatalytic Activity of PtSn Catalysts
EP  - 85
IS  - 1
SP  - 76
VL  - 9
DO  - 10.1007/s12678-017-0424-4
ER  - 

@article{
author = "Tripković, D. and Stevanović, Sanja I. and Gavrilović, A. and Rogan, Jelena and Lačnjevac, Uroš and Kravić, T. and Jovanović, V. M.",
year = "2018",
abstract = "In our previous paper, we described in detail studies of Sn influence on electrocatalytic activity of PtSn catalyst for CO and formic acid oxidation (StevanoviAc et al., J. Phys. Chem. C, 118 (2014) 278-289). The catalyst was composed of a Pt phase, Pt3Sn alloy and very small SnO2 particles. Different electrochemical treatment enabled studies of PtSn/C having Sn both in surface and subsurface layers and skeleton structure of this catalyst with Sn only in subsurface layers. The results obtained revealed the promotional effect of surface Sn whether alloyed or as oxide above all in preventing accumulation of CO and blocking the surface Pt atoms. As a consequence, in formic acid oxidation, the currents are not entering the plateau but increasing constantly until reaching a maximum. It was concluded that at lower potentials the effect of Sn on formic acid oxidation was predominantly electronic but with increasing the potential bi-functional mechanism prevailed due to the leading role of SnO2. This role of SnO2 is restated in the present study. Therefore, CO and formic acid oxidation were examined at PtSnO2/C catalyst. The catalyst was synthesised by the same microwave-assisted polyol procedure. According to XRD analysis, the catalyst is composed of a Pt phase and SnO2 phase. The reactions were examined on PtSnO2/C catalyst treated on the same way as PtSn/C. Comparing the results obtained, the role of SnO2 is confirmed and at the same time the significance of alloyed Sn and its electronic effect is revealed.",
publisher = "Springer, New York",
journal = "Electrocatalysis",
title = "The Role of SnO2 on Electrocatalytic Activity of PtSn Catalysts",
pages = "85-76",
number = "1",
volume = "9",
doi = "10.1007/s12678-017-0424-4"
}

Tripković, D., Stevanović, S. I., Gavrilović, A., Rogan, J., Lačnjevac, U., Kravić, T.,& Jovanović, V. M.. (2018). The Role of SnO2 on Electrocatalytic Activity of PtSn Catalysts. in Electrocatalysis
Springer, New York., 9(1), 76-85.
https://doi.org/10.1007/s12678-017-0424-4

Tripković D, Stevanović SI, Gavrilović A, Rogan J, Lačnjevac U, Kravić T, Jovanović VM. The Role of SnO2 on Electrocatalytic Activity of PtSn Catalysts. in Electrocatalysis. 2018;9(1):76-85.
doi:10.1007/s12678-017-0424-4 .

Tripković, D., Stevanović, Sanja I., Gavrilović, A., Rogan, Jelena, Lačnjevac, Uroš, Kravić, T., Jovanović, V. M., "The Role of SnO2 on Electrocatalytic Activity of PtSn Catalysts" in Electrocatalysis, 9, no. 1 (2018):76-85,
https://doi.org/10.1007/s12678-017-0424-4 . .

TY  - JOUR
AU  - Nikolic, Nebojša D.
AU  - Stevanović, Sanja I.
AU  - Branković, Goran
PY  - 2016
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/982
AB  - The processes of nucleation and growth of lead from the dilute electrolytes on copper substrates were investigated by chronoamperometry and by scanning electron microscopic (SEM) analysis of the deposits obtained in the potentiostatic regime of electrolysis. In the dependence of electrodeposition conditions, the nucleation of Pb followed either progressive or instantaneous type. The type of nucleation changed from progressive to instantaneous one with increasing the concentration of Pb(II) ions and the overpotential of electrodeposition. Regardless of the type nucleation, a novel type of Pb particles like cobweb was formed by the potentiostatic electrodeposition in the moment of nucleation and at the early stages of growth. On the basis of the shape of cobweb-like particles and the electrodeposition conditions leading to their formation, these particles were situated in the group of spongy-like ones. Also, comparative morphological analysis of Pb deposits obtained in the conditions of progressive and instantaneous nucleation confirmed the existence of two limiting types of nucleation.
PB  - Elsevier Science Bv, Amsterdam
T2  - Transactions of Nonferrous Metals Society of China
T1  - Nucleation and early stages of growth of lead onto copper electrodes from dilute electrolytes
EP  - 3282
IS  - 12
SP  - 3274
VL  - 26
DO  - 10.1016/S1003-6326(16)64461-8
ER  - 

@article{
author = "Nikolic, Nebojša D. and Stevanović, Sanja I. and Branković, Goran",
year = "2016",
abstract = "The processes of nucleation and growth of lead from the dilute electrolytes on copper substrates were investigated by chronoamperometry and by scanning electron microscopic (SEM) analysis of the deposits obtained in the potentiostatic regime of electrolysis. In the dependence of electrodeposition conditions, the nucleation of Pb followed either progressive or instantaneous type. The type of nucleation changed from progressive to instantaneous one with increasing the concentration of Pb(II) ions and the overpotential of electrodeposition. Regardless of the type nucleation, a novel type of Pb particles like cobweb was formed by the potentiostatic electrodeposition in the moment of nucleation and at the early stages of growth. On the basis of the shape of cobweb-like particles and the electrodeposition conditions leading to their formation, these particles were situated in the group of spongy-like ones. Also, comparative morphological analysis of Pb deposits obtained in the conditions of progressive and instantaneous nucleation confirmed the existence of two limiting types of nucleation.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Transactions of Nonferrous Metals Society of China",
title = "Nucleation and early stages of growth of lead onto copper electrodes from dilute electrolytes",
pages = "3282-3274",
number = "12",
volume = "26",
doi = "10.1016/S1003-6326(16)64461-8"
}

Nikolic, N. D., Stevanović, S. I.,& Branković, G.. (2016). Nucleation and early stages of growth of lead onto copper electrodes from dilute electrolytes. in Transactions of Nonferrous Metals Society of China
Elsevier Science Bv, Amsterdam., 26(12), 3274-3282.
https://doi.org/10.1016/S1003-6326(16)64461-8

Nikolic ND, Stevanović SI, Branković G. Nucleation and early stages of growth of lead onto copper electrodes from dilute electrolytes. in Transactions of Nonferrous Metals Society of China. 2016;26(12):3274-3282.
doi:10.1016/S1003-6326(16)64461-8 .

Nikolic, Nebojša D., Stevanović, Sanja I., Branković, Goran, "Nucleation and early stages of growth of lead onto copper electrodes from dilute electrolytes" in Transactions of Nonferrous Metals Society of China, 26, no. 12 (2016):3274-3282,
https://doi.org/10.1016/S1003-6326(16)64461-8 . .

TY  - JOUR
AU  - Nikolic, Nebojša D.
AU  - Živković, Predrag M.
AU  - Stevanović, Sanja I.
AU  - Branković, Goran
PY  - 2016
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/980
AB  - The processes of lead electrodeposition from electrolytes of various concentrations of sodium nitrate as the supporting electrolyte have been examined by chronoamperometry and by the scanning electron microscopic (SEM) analysis of deposits obtained in the potentiostatic regime of electrolysis. The good agreement between the diffusion coefficents determined by Cottrell equation and non-linear fitting method was observed. For the first time, the transition from the mixed ohmic-diffusion to the full diffusion control was defined from the analysis of Cottrell equation. The parameters, such as the number density of active sites and the nucleation rate constant, obtained by non-linear fitting method were discussed in accordance with the fact that lead belongs to the group of metals characterized by the high values of the exchange current density. The data obtained by the chronoamperometric analysis were succesfully correlated with morphologies of electrodeposited lead obtained in the different types of electrodeposition control.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Relationship between the kinetic parameters and morphology of electrochemically deposited lead
EP  - 566
IS  - 5
SP  - 553
VL  - 81
DO  - 10.2298/JSC151218028N
ER  - 

@article{
author = "Nikolic, Nebojša D. and Živković, Predrag M. and Stevanović, Sanja I. and Branković, Goran",
year = "2016",
abstract = "The processes of lead electrodeposition from electrolytes of various concentrations of sodium nitrate as the supporting electrolyte have been examined by chronoamperometry and by the scanning electron microscopic (SEM) analysis of deposits obtained in the potentiostatic regime of electrolysis. The good agreement between the diffusion coefficents determined by Cottrell equation and non-linear fitting method was observed. For the first time, the transition from the mixed ohmic-diffusion to the full diffusion control was defined from the analysis of Cottrell equation. The parameters, such as the number density of active sites and the nucleation rate constant, obtained by non-linear fitting method were discussed in accordance with the fact that lead belongs to the group of metals characterized by the high values of the exchange current density. The data obtained by the chronoamperometric analysis were succesfully correlated with morphologies of electrodeposited lead obtained in the different types of electrodeposition control.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Relationship between the kinetic parameters and morphology of electrochemically deposited lead",
pages = "566-553",
number = "5",
volume = "81",
doi = "10.2298/JSC151218028N"
}

Nikolic, N. D., Živković, P. M., Stevanović, S. I.,& Branković, G.. (2016). Relationship between the kinetic parameters and morphology of electrochemically deposited lead. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 81(5), 553-566.
https://doi.org/10.2298/JSC151218028N

Nikolic ND, Živković PM, Stevanović SI, Branković G. Relationship between the kinetic parameters and morphology of electrochemically deposited lead. in Journal of the Serbian Chemical Society. 2016;81(5):553-566.
doi:10.2298/JSC151218028N .

Nikolic, Nebojša D., Živković, Predrag M., Stevanović, Sanja I., Branković, Goran, "Relationship between the kinetic parameters and morphology of electrochemically deposited lead" in Journal of the Serbian Chemical Society, 81, no. 5 (2016):553-566,
https://doi.org/10.2298/JSC151218028N . .

TY  - JOUR
AU  - Jović, Borka M
AU  - Jović, Vladimir D
AU  - Lačnjevac, Uroš
AU  - Stevanović, Sanja I.
AU  - Kovač, Janez
AU  - Radović, M.
AU  - Krstajić, Nedeljko V
PY  - 2016
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/943
AB  - In this work, the hydrogen evolution reaction (HER) was studied on Ru coated Ti2AlC electrodes in 1.0 mol dm(-3) H2SO4 at 25 degrees C. Ti2AlC was found to be a highly stable substrate in sulfuric acid solutions due to the formation of a passivating oxide layer on the surface, which was confirmed by the X-ray photoelectron spectroscopy (XPS) analysis of as-prepared and anodically treated Ti2AlC samples. Ru films were electrodeposited onto Ti2AlC substrates by cycling the potential of Ti2AlC in the solution containing 0.01 mol dm(-3) RuCl3 + 0.1 mol dm(-3) H2SO4 between -0.5 V and 0.4 V vs. a saturated calomel electrode (SCE) at the sweep rate of 20 mV s(-1). Four Ru/Ti2AlC samples were prepared, obtained at 5, 10, 15 and 20 cycles of Ru electrodeposition. Characterization of samples was performed by scanning electron microscopy (SEM) and cyclic voltammetry (CV), while the thickness of the electrodeposited Ru layers was determined by atomic force microscopy (AFM). It was found that the most compact sample with the thickness of about 0.42 mu m was obtained after 5 cycles. Electrochemical impedance spectroscopy (EIS) and steady-state polarization measurements showed that all Ru/Ti2AlC electrodes were exceptionally active for the HER. A Tafel slope of about -60 mV dec(-1) was observed on all polarization curves in the range of high cathodic current densities. Based on formal kinetics analysis, an appropriate mechanism for the HER on Ru/Ti2AlC was suggested.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Electroanalytical Chemistry
T1  - Ru layers electrodeposited onto highly stable Ti2AlC substrates as cathodes for hydrogen evolution in sulfuric acid solutions
EP  - 86
SP  - 78
VL  - 766
DO  - 10.1016/j.jelechem.2016.01.038
ER  - 

@article{
author = "Jović, Borka M and Jović, Vladimir D and Lačnjevac, Uroš and Stevanović, Sanja I. and Kovač, Janez and Radović, M. and Krstajić, Nedeljko V",
year = "2016",
abstract = "In this work, the hydrogen evolution reaction (HER) was studied on Ru coated Ti2AlC electrodes in 1.0 mol dm(-3) H2SO4 at 25 degrees C. Ti2AlC was found to be a highly stable substrate in sulfuric acid solutions due to the formation of a passivating oxide layer on the surface, which was confirmed by the X-ray photoelectron spectroscopy (XPS) analysis of as-prepared and anodically treated Ti2AlC samples. Ru films were electrodeposited onto Ti2AlC substrates by cycling the potential of Ti2AlC in the solution containing 0.01 mol dm(-3) RuCl3 + 0.1 mol dm(-3) H2SO4 between -0.5 V and 0.4 V vs. a saturated calomel electrode (SCE) at the sweep rate of 20 mV s(-1). Four Ru/Ti2AlC samples were prepared, obtained at 5, 10, 15 and 20 cycles of Ru electrodeposition. Characterization of samples was performed by scanning electron microscopy (SEM) and cyclic voltammetry (CV), while the thickness of the electrodeposited Ru layers was determined by atomic force microscopy (AFM). It was found that the most compact sample with the thickness of about 0.42 mu m was obtained after 5 cycles. Electrochemical impedance spectroscopy (EIS) and steady-state polarization measurements showed that all Ru/Ti2AlC electrodes were exceptionally active for the HER. A Tafel slope of about -60 mV dec(-1) was observed on all polarization curves in the range of high cathodic current densities. Based on formal kinetics analysis, an appropriate mechanism for the HER on Ru/Ti2AlC was suggested.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Electroanalytical Chemistry",
title = "Ru layers electrodeposited onto highly stable Ti2AlC substrates as cathodes for hydrogen evolution in sulfuric acid solutions",
pages = "86-78",
volume = "766",
doi = "10.1016/j.jelechem.2016.01.038"
}

Jović, B. M., Jović, V. D., Lačnjevac, U., Stevanović, S. I., Kovač, J., Radović, M.,& Krstajić, N. V.. (2016). Ru layers electrodeposited onto highly stable Ti2AlC substrates as cathodes for hydrogen evolution in sulfuric acid solutions. in Journal of Electroanalytical Chemistry
Elsevier Science Sa, Lausanne., 766, 78-86.
https://doi.org/10.1016/j.jelechem.2016.01.038

Jović BM, Jović VD, Lačnjevac U, Stevanović SI, Kovač J, Radović M, Krstajić NV. Ru layers electrodeposited onto highly stable Ti2AlC substrates as cathodes for hydrogen evolution in sulfuric acid solutions. in Journal of Electroanalytical Chemistry. 2016;766:78-86.
doi:10.1016/j.jelechem.2016.01.038 .

Jović, Borka M, Jović, Vladimir D, Lačnjevac, Uroš, Stevanović, Sanja I., Kovač, Janez, Radović, M., Krstajić, Nedeljko V, "Ru layers electrodeposited onto highly stable Ti2AlC substrates as cathodes for hydrogen evolution in sulfuric acid solutions" in Journal of Electroanalytical Chemistry, 766 (2016):78-86,
https://doi.org/10.1016/j.jelechem.2016.01.038 . .

TY  - JOUR
AU  - Nikolic, Nebojša D.
AU  - Popov, Konstantin I
AU  - Ivanović, Evica R.
AU  - Branković, Goran
AU  - Stevanović, Sanja I.
AU  - Živković, Predrag M.
PY  - 2015
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/896
AB  - Electrodeposition of lead from the concentrated nitrate electrolyte in the potentiostatic regime of electrolysis has been investigated by the analysis of the potentiostatic current transients and scanning electron microscope (SEM). It was found that the process of Pb nucleation from the concentrated electrolyte follows Scharifker model based on the 3D (three-dimensional) instantaneous nucleation with diffusion-controlled growth. The deviations of the obtained dependencies from the theoretical prediction for this model have been also discussed. Needle-like and fern-like dendrites, as well as crystals of irregular shape (precursors of dendrites) were formed in the diffusion controlled electrodeposition. The SEM analysis of these dendritic forms revealed their 2D (two-dimensional) growth. The size of needle-like dendrites was considerably larger than the size of both the fern-like dendrites and the irregular crystals. Although the electrodeposition process occurred inside the linear diffusion layer of the macroelectrode, the shape and size of dendrites were determined by the effect of local diffusion fields formed around tips (spherical diffusion) and top edges (cylindrical diffusion) of protrusions formed in the initial stage of the electrodeposition. The growth rates under the conditions of spherical and cylindrical diffusion control were mutually compared and a faster growth under the conditions of the spherical, in relation to the cylindrical diffusion, was proved. The effect of the current density distribution on formation of the final forms of Pb dendrites was also discussed.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Electroanalytical Chemistry
T1  - The potentiostatic current transients and the role of local diffusion fields in formation of the 2D lead dendrites from the concentrated electrolyte
EP  - 148
SP  - 137
VL  - 739
DO  - 10.1016/j.jelechem.2014.12.020
ER  - 

@article{
author = "Nikolic, Nebojša D. and Popov, Konstantin I and Ivanović, Evica R. and Branković, Goran and Stevanović, Sanja I. and Živković, Predrag M.",
year = "2015",
abstract = "Electrodeposition of lead from the concentrated nitrate electrolyte in the potentiostatic regime of electrolysis has been investigated by the analysis of the potentiostatic current transients and scanning electron microscope (SEM). It was found that the process of Pb nucleation from the concentrated electrolyte follows Scharifker model based on the 3D (three-dimensional) instantaneous nucleation with diffusion-controlled growth. The deviations of the obtained dependencies from the theoretical prediction for this model have been also discussed. Needle-like and fern-like dendrites, as well as crystals of irregular shape (precursors of dendrites) were formed in the diffusion controlled electrodeposition. The SEM analysis of these dendritic forms revealed their 2D (two-dimensional) growth. The size of needle-like dendrites was considerably larger than the size of both the fern-like dendrites and the irregular crystals. Although the electrodeposition process occurred inside the linear diffusion layer of the macroelectrode, the shape and size of dendrites were determined by the effect of local diffusion fields formed around tips (spherical diffusion) and top edges (cylindrical diffusion) of protrusions formed in the initial stage of the electrodeposition. The growth rates under the conditions of spherical and cylindrical diffusion control were mutually compared and a faster growth under the conditions of the spherical, in relation to the cylindrical diffusion, was proved. The effect of the current density distribution on formation of the final forms of Pb dendrites was also discussed.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Electroanalytical Chemistry",
title = "The potentiostatic current transients and the role of local diffusion fields in formation of the 2D lead dendrites from the concentrated electrolyte",
pages = "148-137",
volume = "739",
doi = "10.1016/j.jelechem.2014.12.020"
}

Nikolic, N. D., Popov, K. I., Ivanović, E. R., Branković, G., Stevanović, S. I.,& Živković, P. M.. (2015). The potentiostatic current transients and the role of local diffusion fields in formation of the 2D lead dendrites from the concentrated electrolyte. in Journal of Electroanalytical Chemistry
Elsevier Science Sa, Lausanne., 739, 137-148.
https://doi.org/10.1016/j.jelechem.2014.12.020

Nikolic ND, Popov KI, Ivanović ER, Branković G, Stevanović SI, Živković PM. The potentiostatic current transients and the role of local diffusion fields in formation of the 2D lead dendrites from the concentrated electrolyte. in Journal of Electroanalytical Chemistry. 2015;739:137-148.
doi:10.1016/j.jelechem.2014.12.020 .

Nikolic, Nebojša D., Popov, Konstantin I, Ivanović, Evica R., Branković, Goran, Stevanović, Sanja I., Živković, Predrag M., "The potentiostatic current transients and the role of local diffusion fields in formation of the 2D lead dendrites from the concentrated electrolyte" in Journal of Electroanalytical Chemistry, 739 (2015):137-148,
https://doi.org/10.1016/j.jelechem.2014.12.020 . .

TY  - JOUR
AU  - Nikolic, Nebojša D.
AU  - Ivanović, Evica R.
AU  - Branković, Goran
AU  - Lačnjevac, Uroš
AU  - Stevanović, Sanja I.
AU  - Stevanović, Jasmina S.
AU  - Pavlović, Miomir G.
PY  - 2015
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/859
AB  - Lead granules synthesized by the potentiostatic regime of electrolysis were characterized by the scanning electron microscopy technique. Effect of the different parameters of electrolysis, such as solution composition, overpotential of electrodeposition, and quantity of the electricity, on lead granular growth has been systematically investigated. Aside from the electrochemical aspects of lead granular growth, crystallographic aspects of the obtained granules were also analyzed. In the dependence of the electrodeposition conditions, granules of various shapes were obtained. The granules, such as octahedrons and hexagons, as well as many various types of twinned particles: single-twinned, multiply-twinned, lamellar-twinned, and many other complicated shapes denoted as polyparticles, were synthesized through regulation of the parameters of electrolysis. Increasing both the concentration of Pb2+ ions and overpotential of the electrodeposition favored the formation of more complicated forms. Formation of granules of specified crystallographic characteristics was also correlated with the basic principle of metal electrocrystallization.
PB  - Springer, New York
T2  - Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science
T1  - Electrochemical and Crystallographic Aspects of Lead Granular Growth
EP  - 1774
IS  - 4
SP  - 1760
VL  - 46
DO  - 10.1007/s11663-015-0385-z
ER  - 

@article{
author = "Nikolic, Nebojša D. and Ivanović, Evica R. and Branković, Goran and Lačnjevac, Uroš and Stevanović, Sanja I. and Stevanović, Jasmina S. and Pavlović, Miomir G.",
year = "2015",
abstract = "Lead granules synthesized by the potentiostatic regime of electrolysis were characterized by the scanning electron microscopy technique. Effect of the different parameters of electrolysis, such as solution composition, overpotential of electrodeposition, and quantity of the electricity, on lead granular growth has been systematically investigated. Aside from the electrochemical aspects of lead granular growth, crystallographic aspects of the obtained granules were also analyzed. In the dependence of the electrodeposition conditions, granules of various shapes were obtained. The granules, such as octahedrons and hexagons, as well as many various types of twinned particles: single-twinned, multiply-twinned, lamellar-twinned, and many other complicated shapes denoted as polyparticles, were synthesized through regulation of the parameters of electrolysis. Increasing both the concentration of Pb2+ ions and overpotential of the electrodeposition favored the formation of more complicated forms. Formation of granules of specified crystallographic characteristics was also correlated with the basic principle of metal electrocrystallization.",
publisher = "Springer, New York",
journal = "Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science",
title = "Electrochemical and Crystallographic Aspects of Lead Granular Growth",
pages = "1774-1760",
number = "4",
volume = "46",
doi = "10.1007/s11663-015-0385-z"
}

Nikolic, N. D., Ivanović, E. R., Branković, G., Lačnjevac, U., Stevanović, S. I., Stevanović, J. S.,& Pavlović, M. G.. (2015). Electrochemical and Crystallographic Aspects of Lead Granular Growth. in Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science
Springer, New York., 46(4), 1760-1774.
https://doi.org/10.1007/s11663-015-0385-z

Nikolic ND, Ivanović ER, Branković G, Lačnjevac U, Stevanović SI, Stevanović JS, Pavlović MG. Electrochemical and Crystallographic Aspects of Lead Granular Growth. in Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science. 2015;46(4):1760-1774.
doi:10.1007/s11663-015-0385-z .

Nikolic, Nebojša D., Ivanović, Evica R., Branković, Goran, Lačnjevac, Uroš, Stevanović, Sanja I., Stevanović, Jasmina S., Pavlović, Miomir G., "Electrochemical and Crystallographic Aspects of Lead Granular Growth" in Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science, 46, no. 4 (2015):1760-1774,
https://doi.org/10.1007/s11663-015-0385-z . .

TY  - JOUR
AU  - Stoiljković, Z.Z.
AU  - Avramov-Ivić, Milka L
AU  - Petrović, S.D.
AU  - Mijin, Dušan
AU  - Stevanović, Sanja I.
AU  - Lačnjevac, Uroš
AU  - Marinković, Aleksandar
PY  - 2012
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/610
AB  - The oxidative behaviour of amlodipine besylate was studied. The gold electrode and Au/o-MWCNT (oxidized multi-wall carbon nanotubes) were used for determination of amlodipine besylate standard and as a content of Alopres tablet, in 0.05 M NaHCO3 and in phosphate buffer (pH=11) by cyclic voltammetry and square-wave anodic stripping voltammetry. Electrode surfaces were characterized by AFM in the presence of amlodipine and the concentrations of drugs in electrolytes were simultaneously followed by HPLC. The linear dependency of the anodic currents of amlodipine besylate as standard and in Alopres tablet vs. concentration was observed in both electrolytes, but in phosphate buffer for the higher concentrations. The peak currents obtained in all experiments are more than fifty-fold higher comparing to all previously published results concerning the glassy carbon electrode and the carbon paste electrode. The gold electrode is better catalyst for anodic oxidation of amlodipine besylate than glassy carbone. The results obtained with Au/o-MWCNT show lower anodic activity comparing to previously published GC/o-MWCNT. GC/o-MWCNT is better catalyst than Au/o-MWCNT under similar experimental conditions.
PB  - Electrochemical Science Group, Beograd
T2  - International Journal of Electrochemical Science
T1  - Voltammetric and Square-Wave Anodic Stripping Determination of Amlodipine Besylate on Gold Electrode
EP  - 2303
IS  - 3
SP  - 2288
VL  - 7
UR  - https://hdl.handle.net/21.15107/rcub_cer_1019
ER  - 

@article{
author = "Stoiljković, Z.Z. and Avramov-Ivić, Milka L and Petrović, S.D. and Mijin, Dušan and Stevanović, Sanja I. and Lačnjevac, Uroš and Marinković, Aleksandar",
year = "2012",
abstract = "The oxidative behaviour of amlodipine besylate was studied. The gold electrode and Au/o-MWCNT (oxidized multi-wall carbon nanotubes) were used for determination of amlodipine besylate standard and as a content of Alopres tablet, in 0.05 M NaHCO3 and in phosphate buffer (pH=11) by cyclic voltammetry and square-wave anodic stripping voltammetry. Electrode surfaces were characterized by AFM in the presence of amlodipine and the concentrations of drugs in electrolytes were simultaneously followed by HPLC. The linear dependency of the anodic currents of amlodipine besylate as standard and in Alopres tablet vs. concentration was observed in both electrolytes, but in phosphate buffer for the higher concentrations. The peak currents obtained in all experiments are more than fifty-fold higher comparing to all previously published results concerning the glassy carbon electrode and the carbon paste electrode. The gold electrode is better catalyst for anodic oxidation of amlodipine besylate than glassy carbone. The results obtained with Au/o-MWCNT show lower anodic activity comparing to previously published GC/o-MWCNT. GC/o-MWCNT is better catalyst than Au/o-MWCNT under similar experimental conditions.",
publisher = "Electrochemical Science Group, Beograd",
journal = "International Journal of Electrochemical Science",
title = "Voltammetric and Square-Wave Anodic Stripping Determination of Amlodipine Besylate on Gold Electrode",
pages = "2303-2288",
number = "3",
volume = "7",
url = "https://hdl.handle.net/21.15107/rcub_cer_1019"
}

Stoiljković, Z.Z., Avramov-Ivić, M. L., Petrović, S.D., Mijin, D., Stevanović, S. I., Lačnjevac, U.,& Marinković, A.. (2012). Voltammetric and Square-Wave Anodic Stripping Determination of Amlodipine Besylate on Gold Electrode. in International Journal of Electrochemical Science
Electrochemical Science Group, Beograd., 7(3), 2288-2303.
https://hdl.handle.net/21.15107/rcub_cer_1019

Stoiljković Z, Avramov-Ivić ML, Petrović S, Mijin D, Stevanović SI, Lačnjevac U, Marinković A. Voltammetric and Square-Wave Anodic Stripping Determination of Amlodipine Besylate on Gold Electrode. in International Journal of Electrochemical Science. 2012;7(3):2288-2303.
https://hdl.handle.net/21.15107/rcub_cer_1019 .

Stoiljković, Z.Z., Avramov-Ivić, Milka L, Petrović, S.D., Mijin, Dušan, Stevanović, Sanja I., Lačnjevac, Uroš, Marinković, Aleksandar, "Voltammetric and Square-Wave Anodic Stripping Determination of Amlodipine Besylate on Gold Electrode" in International Journal of Electrochemical Science, 7, no. 3 (2012):2288-2303,
https://hdl.handle.net/21.15107/rcub_cer_1019 .