Mechanistic study of ethanol oxidation on Pd-NiO/C electrocatalyst

被引：134

作者：

Hu, Fengping

Chen, Cuilian

Wang, Zhengyou

Wei, Guoying

Shen, Pei Kang ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Sch Phys & Engn, Guangzhou 510275, Peoples R China

[2] Inst Technol, Dept Food & Bioengn, Fujian 363000, Zhangzhou, Peoples R China

[3] China Jiliang Univ, Coll Sci, Hangzhou 310018, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2006年 / 52卷 / 03期

基金：

中国国家自然科学基金;

关键词：

electrocatalyst; ethanol oxidation; fuel cell; oxide; alkaline;

D O I：

10.1016/j.electacta.2006.07.008

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

NiO supported Pt/C and Pd/C electrocatalysts have been prepared by IMH method. The ethanol oxidation on Pd-NiO/C electrocatalyst is tested in an ethanol solution with or without the presence of CO. The results show that the oxidation of CO on Pd-NiO/C electrocatalyst needs higher overpotential than that on Pt-NiO/C electrocatalyst. However, the peak area of the CO oxidation on the Pd-NiO/C electrocatalyst is much lower and the influence of CO on the performance of ethanol oxidation is small. The higher activity and less poisoning of the Pd-NiO/C electrocatalyst than that of the Pt-NiO/C electrocatalyst for ethanol oxidation is possibly due to the lower CO coverage on the Pd-NiO/C electrocatalyst that leads to the favorable adsorption of ethanol instead of CO and consequently the less poisoning effect. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1087 / 1091

页数：5

共 30 条

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