Electro-Oxidation of Ethanol on Pt-WO[sub 3]∕C Electrocatalyst

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

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