TY  - JOUR
AU  - Obradović, Maja D.
AU  - Lacnjevac, U. C.
AU  - Babić, Biljana M.
AU  - Ercius, P.
AU  - Radmilovíć, Velimir R.
AU  - Krstajic, N. V.
AU  - Gojković, Snežana Lj.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/468
AB  - Two binary Ru-Ti oxides, Rum Ti0.9O2 and Ru0.7Ti0.3O2, were synthesized by the sol-gel method and used as an electrocatalyst support. The system was characterized by XRD, EDS, TEM and cyclic voltammetry. The Rum Ti0.9O2 and Ru0.7Ti0.3O2 consist of two phases of anatase and rutile structure. An average size of the Pt nanoparticles supported on them is similar to 3.5 nm and they are deposited on both Ru and Ti-rich domains. The supports exhibited good conductivity and electrochemical stability. The onset potentials of COads oxidation on the synthesized catalysts and on commercial PtRu/C are similar to each other and lower than that on Pt/C. This suggests that in Pt/Rum Ti0.9O2 and Pt/Ru0(.7)Ti(0.3)O(2) the Pt nanoparticles are in close contact with Ru atoms from the support, which enables the bifunctional mechanism. The activity and stability of the catalysts for methanol oxidation were examined under potentiodynamic and potentiostatic conditions. While the activity of Pt/Rum Ti0.9O2 is unsatisfactory, the performance of Pt/Ru0.7Ti0.3O2 is comparable to PtRu/C. For example, in the potentiostatic test at 0.5 V the activities after 25 min are 0.035 mA cm(-2) and 0.022 mA cm(-2) for Pt/Ru0.7Ti0.3O2 and PtRu/C, respectively. In potentiodynamic test the activities at 0.5V after 250 cycles are around 0.02 mA cm(-2) for both catalysts. (C) 2015 Elsevier B.V. All rights reserved.
T2  - Applied Catalysis. B: Environmental
T1  - RuxTi1-xO2 as the support for Pt nanoparticles: Electrocatalysis of methanol oxidation
VL  - 170
SP  - 144
EP  - 152
DO  - 10.1016/j.apcatb.2015.01.038
ER  - 

@article{
author = "Obradović, Maja D. and Lacnjevac, U. C. and Babić, Biljana M. and Ercius, P. and Radmilovíć, Velimir R. and Krstajic, N. V. and Gojković, Snežana Lj.",
year = "2015",
abstract = "Two binary Ru-Ti oxides, Rum Ti0.9O2 and Ru0.7Ti0.3O2, were synthesized by the sol-gel method and used as an electrocatalyst support. The system was characterized by XRD, EDS, TEM and cyclic voltammetry. The Rum Ti0.9O2 and Ru0.7Ti0.3O2 consist of two phases of anatase and rutile structure. An average size of the Pt nanoparticles supported on them is similar to 3.5 nm and they are deposited on both Ru and Ti-rich domains. The supports exhibited good conductivity and electrochemical stability. The onset potentials of COads oxidation on the synthesized catalysts and on commercial PtRu/C are similar to each other and lower than that on Pt/C. This suggests that in Pt/Rum Ti0.9O2 and Pt/Ru0(.7)Ti(0.3)O(2) the Pt nanoparticles are in close contact with Ru atoms from the support, which enables the bifunctional mechanism. The activity and stability of the catalysts for methanol oxidation were examined under potentiodynamic and potentiostatic conditions. While the activity of Pt/Rum Ti0.9O2 is unsatisfactory, the performance of Pt/Ru0.7Ti0.3O2 is comparable to PtRu/C. For example, in the potentiostatic test at 0.5 V the activities after 25 min are 0.035 mA cm(-2) and 0.022 mA cm(-2) for Pt/Ru0.7Ti0.3O2 and PtRu/C, respectively. In potentiodynamic test the activities at 0.5V after 250 cycles are around 0.02 mA cm(-2) for both catalysts. (C) 2015 Elsevier B.V. All rights reserved.",
journal = "Applied Catalysis. B: Environmental",
title = "RuxTi1-xO2 as the support for Pt nanoparticles: Electrocatalysis of methanol oxidation",
volume = "170",
pages = "144-152",
doi = "10.1016/j.apcatb.2015.01.038"
}

Obradović, M. D., Lacnjevac, U. C., Babić, B. M., Ercius, P., Radmilovíć, V. R., Krstajic, N. V.,& Gojković, S. Lj.. (2015). RuxTi1-xO2 as the support for Pt nanoparticles: Electrocatalysis of methanol oxidation. in Applied Catalysis. B: Environmental, 170, 144-152.
https://doi.org/10.1016/j.apcatb.2015.01.038

Obradović MD, Lacnjevac UC, Babić BM, Ercius P, Radmilovíć VR, Krstajic NV, Gojković SL. RuxTi1-xO2 as the support for Pt nanoparticles: Electrocatalysis of methanol oxidation. in Applied Catalysis. B: Environmental. 2015;170:144-152.
doi:10.1016/j.apcatb.2015.01.038 .

Obradović, Maja D., Lacnjevac, U. C., Babić, Biljana M., Ercius, P., Radmilovíć, Velimir R., Krstajic, N. V., Gojković, Snežana Lj., "RuxTi1-xO2 as the support for Pt nanoparticles: Electrocatalysis of methanol oxidation" in Applied Catalysis. B: Environmental, 170 (2015):144-152,
https://doi.org/10.1016/j.apcatb.2015.01.038 . .

TY  - JOUR
AU  - Maksimović, Vesna
AU  - Lacnjevac, U. C.
AU  - Stoiljković, Milovan
AU  - Pavlović, Miomir G.
AU  - Jović, Vladimir D.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4645
AB  - The morphology, phase and chemical composition of Ni-Co alloy powders electrodeposited from an ammonium sulfate-boric acid containing electrolyte with different ratio of Ni/Co ions were investigated. The ratios of NVCo ions were 1/1, 1/2 and 1/3. The morphology, chemical composition and phase composition of the electrodeposited alloy powders were investigated using AES, SEM, EDS and XRD analysis. Composition of the electrolyte, i.e. the ratio of Ni/Co concentrations was found to influence both, the alloy phase composition and the morphology of Ni-Co alloy powders. At the highest ratio of Ni/Co = 1/1 concentrations typical 2D fern-like dendritic particles were obtained. With a decrease of NVCo ions ratio among 2D fern-like dendrites, 3D dendrites and different agglomerates were obtained. X-ray diffraction studies showed that the alloy powders mainly consisted of the face-centered cubic alpha-nickel phase and hexagonal close-packed alpha-cobalt phase and minor proportions of face-centered cubic alpha-cobalt phase. The occurrence of the latter phase was observed only in the alloy powder with the higher cobalt concentration in electrolyte. The electrodeposition of Ni-Co powders occurred in an anomalous manner. (C) 2011 Elsevier Inc. All rights reserved.
T2  - Materials Characterization
T1  - Morphology and composition of Ni-Co electrodeposited powders
VL  - 62
IS  - 12
SP  - 1173
EP  - 1179
DO  - 10.1016/j.matchar.2011.09.001
ER  - 

@article{
author = "Maksimović, Vesna and Lacnjevac, U. C. and Stoiljković, Milovan and Pavlović, Miomir G. and Jović, Vladimir D.",
year = "2011",
abstract = "The morphology, phase and chemical composition of Ni-Co alloy powders electrodeposited from an ammonium sulfate-boric acid containing electrolyte with different ratio of Ni/Co ions were investigated. The ratios of NVCo ions were 1/1, 1/2 and 1/3. The morphology, chemical composition and phase composition of the electrodeposited alloy powders were investigated using AES, SEM, EDS and XRD analysis. Composition of the electrolyte, i.e. the ratio of Ni/Co concentrations was found to influence both, the alloy phase composition and the morphology of Ni-Co alloy powders. At the highest ratio of Ni/Co = 1/1 concentrations typical 2D fern-like dendritic particles were obtained. With a decrease of NVCo ions ratio among 2D fern-like dendrites, 3D dendrites and different agglomerates were obtained. X-ray diffraction studies showed that the alloy powders mainly consisted of the face-centered cubic alpha-nickel phase and hexagonal close-packed alpha-cobalt phase and minor proportions of face-centered cubic alpha-cobalt phase. The occurrence of the latter phase was observed only in the alloy powder with the higher cobalt concentration in electrolyte. The electrodeposition of Ni-Co powders occurred in an anomalous manner. (C) 2011 Elsevier Inc. All rights reserved.",
journal = "Materials Characterization",
title = "Morphology and composition of Ni-Co electrodeposited powders",
volume = "62",
number = "12",
pages = "1173-1179",
doi = "10.1016/j.matchar.2011.09.001"
}

Maksimović, V., Lacnjevac, U. C., Stoiljković, M., Pavlović, M. G.,& Jović, V. D.. (2011). Morphology and composition of Ni-Co electrodeposited powders. in Materials Characterization, 62(12), 1173-1179.
https://doi.org/10.1016/j.matchar.2011.09.001

Maksimović V, Lacnjevac UC, Stoiljković M, Pavlović MG, Jović VD. Morphology and composition of Ni-Co electrodeposited powders. in Materials Characterization. 2011;62(12):1173-1179.
doi:10.1016/j.matchar.2011.09.001 .

Maksimović, Vesna, Lacnjevac, U. C., Stoiljković, Milovan, Pavlović, Miomir G., Jović, Vladimir D., "Morphology and composition of Ni-Co electrodeposited powders" in Materials Characterization, 62, no. 12 (2011):1173-1179,
https://doi.org/10.1016/j.matchar.2011.09.001 . .