Ethanol electrooxidation on Pt/C and Pd/C catalysts promoted with oxide

被引：355

作者：

Xu, Changwei

Shen, Pei kang ^{[1
]}

Liu, Yingliang

机构：

[1] Jinan Univ, Dept Chem, Guangzhou 510632, Peoples R China

[2] Jinan Univ, Inst Nanochem, Guangzhou 510632, Peoples R China

[3] Sun Yat Sen Univ, Sch Phys & Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2007年 / 164卷 / 02期

基金：

中国国家自然科学基金;

关键词：

ethanol; fuel cells; palladium; oxide; electrooxidation;

D O I：

10.1016/j.jpowsour.2006.10.071

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This research aims to investigate Pd-based catalysts as a replacement for Pt-based catalysts for ethanol electrooxidation in alkaline media. The results show that Pd/C has a higher catalytic activity and better steady-state behaviour for ethanol oxidation than that of Pt/C. The effect of the addition of CeO2 and NiO to the Pt/C and Pd/C electrocatalysts on ethanol oxidation is also studied in alkaline media. The electrocatalysts with a weight ratio of noble metal (Pt, Pd) to CeO2 of 2:1 and a noble metal to NiO ration 6:1 show the highest catalytic activity for ethanol oxidation. The oxide promoted Pt/C and Pd/C electrocatalysts show a higher activity than the commercial E-TEK PtRu/C electrocatalyst for ethanol oxidation in alkaline media. (c) 2006 Elsevier B.V. All rights reserved.

引用

收藏

页码：527 / 531

页数：5

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