The Performance of Carbon-Supported Platinum-Decorated Nickel Electrocatalyst for Ethanol Oxidation

doi:10.3724/SP.J.1088.2011.10439

Abstract

Abstract: A carbon-supported platinum-decorated nickel electrocatalyst (Ni@Pt/C) was prepared by two-step reaction and characterized by X-ray diffraction, transmission electron microscopy, and cyclic voltammetry. Based on the Pt mass, the Ni@Pt/C catalyst exhibits higher activity for ethanol oxidation than the commercial Pt/C catalyst and alloy PtNi/C catalyst. The peak current of Ni@Pt/C reaches 0.37 A/mg, which is 2.33 and 1.78 times as large as those of Pt/C and PtNi/C, respectively. This can be attributed to the modified electronic structure of the Pt surface layer in the Ni@Pt/C catalyst.

Key words: platinum, nickel, modified electrocatalyst, ethanol, oxidation, fuel cell

WANG Xing-Li, WANG Hui, LEI Zi-Qiang, ZHANG Zhe, WANG Rong-Fang. The Performance of Carbon-Supported Platinum-Decorated Nickel Electrocatalyst for Ethanol Oxidation[J]. Chinese Journal of Catalysis, 2011, 32(9): 1519-1524.

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