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

被引：353
|
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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