The oxidation of methanol and reduction of oxygen were studied on MoOx-Pt/C nano-catalysts prepared by the polyole method combined by MoOx post-deposition. The catalysts were characterized by TEM and EDX. The presented composition of the electrode is very similar to the nominal ones and post-deposited MoOx species block only a small fraction of the active Pt particle surface area. MoOx deposition on the carbon support can be ruled out from the EDX results and the low mobility of these oxides at corresponding conditions. The electrode catalytic activity in the electrooxidation of methanol and the reduction of oxygen was studied by steady-state voltammetry and cyclic voltammetry. MoOx-Pt/C catalyst exhibits higher catalytic activity than Pt/C for the oxygen reduction. The catalytic effect in oxidation of methanol is achieved only under potentiodynamic conditions, when poisoning species have no enough time to develop fully.
TY - JOUR
AU - Elezović, Nevenka R.
AU - Babić, Biljana M.
AU - Radmilović, Velimir R
AU - Gojković, Snežana Lj
AU - Krstajić, Nedeljko V
AU - Vračar, Ljiljana M
PY - 2008
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/244
AB - The oxidation of methanol and reduction of oxygen were studied on MoOx-Pt/C nano-catalysts prepared by the polyole method combined by MoOx post-deposition. The catalysts were characterized by TEM and EDX. The presented composition of the electrode is very similar to the nominal ones and post-deposited MoOx species block only a small fraction of the active Pt particle surface area. MoOx deposition on the carbon support can be ruled out from the EDX results and the low mobility of these oxides at corresponding conditions. The electrode catalytic activity in the electrooxidation of methanol and the reduction of oxygen was studied by steady-state voltammetry and cyclic voltammetry. MoOx-Pt/C catalyst exhibits higher catalytic activity than Pt/C for the oxygen reduction. The catalytic effect in oxidation of methanol is achieved only under potentiodynamic conditions, when poisoning species have no enough time to develop fully.
PB - Elsevier Science Bv, Amsterdam
T2 - Journal of Power Sources
T1 - Pt/C doped by MoOx as the electrocatalyst for oxygen reduction and methanol oxidation
EP - 255
IS - 1
SP - 250
VL - 175
DO - 10.1016/j.jpowsour.2007.09.011
ER -
@article{
author = "Elezović, Nevenka R. and Babić, Biljana M. and Radmilović, Velimir R and Gojković, Snežana Lj and Krstajić, Nedeljko V and Vračar, Ljiljana M",
year = "2008",
abstract = "The oxidation of methanol and reduction of oxygen were studied on MoOx-Pt/C nano-catalysts prepared by the polyole method combined by MoOx post-deposition. The catalysts were characterized by TEM and EDX. The presented composition of the electrode is very similar to the nominal ones and post-deposited MoOx species block only a small fraction of the active Pt particle surface area. MoOx deposition on the carbon support can be ruled out from the EDX results and the low mobility of these oxides at corresponding conditions. The electrode catalytic activity in the electrooxidation of methanol and the reduction of oxygen was studied by steady-state voltammetry and cyclic voltammetry. MoOx-Pt/C catalyst exhibits higher catalytic activity than Pt/C for the oxygen reduction. The catalytic effect in oxidation of methanol is achieved only under potentiodynamic conditions, when poisoning species have no enough time to develop fully.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Power Sources",
title = "Pt/C doped by MoOx as the electrocatalyst for oxygen reduction and methanol oxidation",
pages = "255-250",
number = "1",
volume = "175",
doi = "10.1016/j.jpowsour.2007.09.011"
}
Elezović, N. R., Babić, B. M., Radmilović, V. R., Gojković, S. L., Krstajić, N. V.,& Vračar, L. M.. (2008). Pt/C doped by MoOx as the electrocatalyst for oxygen reduction and methanol oxidation. in Journal of Power Sources
Elsevier Science Bv, Amsterdam., 175(1), 250-255.
https://doi.org/10.1016/j.jpowsour.2007.09.011
Elezović NR, Babić BM, Radmilović VR, Gojković SL, Krstajić NV, Vračar LM. Pt/C doped by MoOx as the electrocatalyst for oxygen reduction and methanol oxidation. in Journal of Power Sources. 2008;175(1):250-255.
doi:10.1016/j.jpowsour.2007.09.011 .
Elezović, Nevenka R., Babić, Biljana M., Radmilović, Velimir R, Gojković, Snežana Lj, Krstajić, Nedeljko V, Vračar, Ljiljana M, "Pt/C doped by MoOx as the electrocatalyst for oxygen reduction and methanol oxidation" in Journal of Power Sources, 175, no. 1 (2008):250-255,
https://doi.org/10.1016/j.jpowsour.2007.09.011 . .
