Platinum and molybdenum oxide deposited carbon electrocatalyst for oxidation of hydrogen containing carbon monoxide

被引：91

作者：

Ioroi, T ^{[1
]}

Fujiwara, N ^{[1
]}

Siroma, Z ^{[1
]}

Yasuda, K ^{[1
]}

Miyazaki, Y ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Special Div Green Life Technol, Osaka 5638577, Japan

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2002年 / 4卷 / 05期

关键词：

polymer electrolyte fuel cell (PEFC); molybdenum oxide; electrocatalyst; carbon monoxide;

D O I：

10.1016/S1388-2481(02)00341-7

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Carbon-supported Pt/MoOx catalysts for use in PEFC anodes were prepared and their catalytic activity for the oxidation of CO-contaminated H-2 was examined based on the fuel cell performance in PEFC single cell arrangements. Based on the XRD pattern and XPS measurements of the prepared Pt/MoOx/C catalysts, it was found that the deposited MoOx exists as an amorphous oxide phase. The MoOx phase shows a redox peak at around 0.45 V, which was revealed by the cyclic voltammogram of the Pt/MoOx/C in sulfuric acid solution. The PEFC performance of the cell with Pt/MoOx/C was improved under 100 ppm CO-contaminated H-2 conditions compared to the Pt/C catalyst, and was almost comparable to the PtRu(1:1)/C catalyst. (C) 2002 Published by Elsevier Science B.V.

引用

页码：442 / 446

页数：5

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