Electro-Oxidation of Ethanol on Pt-WO3/C Electrocatalyst

Authors

D. Y. Zhang, Shanghai Jiatong University, China
Z. F. Ma, Shanghai Jiatong University, China
G. X. Wang, University of WollongongFollow
Konstantin Konstantinov, University of WollongongFollow
X. X. Yuan, shanghai Jiatong University, China
Hua-Kun Liu, University of WollongongFollow

RIS ID

18060

Publication Details

This articles was originally published as Zhang, DY, Ma. ZF, Wang, GX et al, Electro-Oxidation of Ethanol on Pt-WO3/C Electrocatalyst, Electrochemical and Solid-State Letters, 9(9), 2006, A423-A426. Copyright The Electrochemical Society. Original journal available here.

Abstract

Ptx-WO3/C electrocatalysts were prepared by microwave colloid-reduction method. Transmission electron microscopy examination showed uniform dispersion of platinum with particle sizes less than 5 nm. Structures of the Ptx-WO3/C electrocatalysts were characterized by X-ray diffraction and energy dispersive spectroscopy, the electrochemical characteristics and electro-oxidation of electro-oxidation of ethanol on the Ptx-WO3/C electrocatalysts were also studied by cyclic voltammetry, linear sweep, and chronoamperometry. The results show that the Ptx-WO3/C electrocatalysts have higher catalytic activity to ethanol electrooxidation than the commercial Pt/C catalysts; perhaps caused by the “hydrogen spill-over effect.” The reaction mechanisms of the ethanol electro-oxidation on the Ptx-WO3/C were inferred according to the electrochemical characteristics and the data in the reported literature.