TY  - JOUR
AU  - Obradović, Maja D.
AU  - Babić, Biljana M.
AU  - Kowal, Andrzej
AU  - Panić, Vladimir V.
AU  - Gojković, Snežana Lj.
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3601
AB  - The electrochemical characteristics of a mixture of Pt-black and WC powders and its catalytic activity for methanol and formic acid oxidation were investigated in acid solution. XRD and AFM measurements revealed that the WC powder employed for the investigation was a single-phase material consisting of crystallites/spherical particles of average size of about 50 nm, which were agglomerated into much larger particles. Cyclic voltammetry showed that the WC underwent electrochemical oxidation, producing tungstate species. In the case of the mixed Pt + WC powders, the tungstate species were deposited on the Pt as a thin film of hydrous tungsten oxide. Enhanced hydrogen intercalation in the hydrous tungsten oxide was observed and it was proposed to be promoted in mixed powders by the presence of hydrogen adatoms on bare Pt sites. The determination of Pt surface area in the Pt + WC layer by stripping of underpotentially deposited Cu revealed that the entire Pt surface was accessible for underpotential deposition of Cu. Investigation of the electrochemical oxidation of methanol and formic acid on Pt + WC and pure Pt layers did not indicate electrocatalytic promotion due to the presence of WC.
T2  - Journal of the Serbian Chemical Society
T1  - Electrochemical properties of mixed WC and Pt-black powders
VL  - 73
IS  - 12
SP  - 1197
EP  - 1209
DO  - 10.2298/JSC0812197O
ER  - 

@article{
author = "Obradović, Maja D. and Babić, Biljana M. and Kowal, Andrzej and Panić, Vladimir V. and Gojković, Snežana Lj.",
year = "2008",
abstract = "The electrochemical characteristics of a mixture of Pt-black and WC powders and its catalytic activity for methanol and formic acid oxidation were investigated in acid solution. XRD and AFM measurements revealed that the WC powder employed for the investigation was a single-phase material consisting of crystallites/spherical particles of average size of about 50 nm, which were agglomerated into much larger particles. Cyclic voltammetry showed that the WC underwent electrochemical oxidation, producing tungstate species. In the case of the mixed Pt + WC powders, the tungstate species were deposited on the Pt as a thin film of hydrous tungsten oxide. Enhanced hydrogen intercalation in the hydrous tungsten oxide was observed and it was proposed to be promoted in mixed powders by the presence of hydrogen adatoms on bare Pt sites. The determination of Pt surface area in the Pt + WC layer by stripping of underpotentially deposited Cu revealed that the entire Pt surface was accessible for underpotential deposition of Cu. Investigation of the electrochemical oxidation of methanol and formic acid on Pt + WC and pure Pt layers did not indicate electrocatalytic promotion due to the presence of WC.",
journal = "Journal of the Serbian Chemical Society",
title = "Electrochemical properties of mixed WC and Pt-black powders",
volume = "73",
number = "12",
pages = "1197-1209",
doi = "10.2298/JSC0812197O"
}

Obradović, M. D., Babić, B. M., Kowal, A., Panić, V. V.,& Gojković, S. Lj.. (2008). Electrochemical properties of mixed WC and Pt-black powders. in Journal of the Serbian Chemical Society, 73(12), 1197-1209.
https://doi.org/10.2298/JSC0812197O

Obradović MD, Babić BM, Kowal A, Panić VV, Gojković SL. Electrochemical properties of mixed WC and Pt-black powders. in Journal of the Serbian Chemical Society. 2008;73(12):1197-1209.
doi:10.2298/JSC0812197O .

Obradović, Maja D., Babić, Biljana M., Kowal, Andrzej, Panić, Vladimir V., Gojković, Snežana Lj., "Electrochemical properties of mixed WC and Pt-black powders" in Journal of the Serbian Chemical Society, 73, no. 12 (2008):1197-1209,
https://doi.org/10.2298/JSC0812197O . .