Effect of support on the activity of Pd electrocatalyst for ethanol oxidation

被引：182

作者：

Zheng, Hai Tao

Li, Yongliang

Chen, Shuixia

Shen, Pei Kang ^{[1
]}

机构：

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

[2] Sun Yat Sen Univ, Sch Chem & Chem Engn, Inst Mat Sci, Guangzhou 510275, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2006年 / 163卷 / 01期

基金：

中国国家自然科学基金;

关键词：

ethanol oxidation; Pd/MWCNT; electrocatalyst; fuel cells; anode;

D O I：

10.1016/j.jpowsour.2006.09.062

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：

Pd nanoparticles were supported on different types of the carbon materials including multiwall carbon nanotube (MWCNT), carbon black and activated carbon fiber (ACF) prepared by the intermittent microwave heating (IMH) technique. Different electrochemical techniques were employed to characterize the catalytic activities of the Pd-based electrocatalysts for ethanol oxidation in comparison with the Pt/C electrocatalyst. Pd supported on multiwall carbon nanotube (Pd/MWCNT) electrocatalyst showed the best performance for ethanol oxidation in alkaline media. An over 100 mV negative shift of the onset potential for ethanol oxidation was found on Pd/MWCNT compared to that on Pt/C. The results indicated that the support would significantly influence the catalytic activities of the Pd-based electrocatalysts for ethanol oxidation. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：371 / 375

页数：5

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