期刊
JOURNAL OF POWER SOURCES
卷 195, 期 9, 页码 2619-2622出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2009.11.072
关键词
Palladium-lead catalyst; Palladium catalyst; Ethanol oxidation; Alkaline fuel cell
资金
- Nanyang Technological University
- AcRF tier 2 [ARC11/06]
- Ministry of Education, Singapore
Carbon-supported bimetallic palladium-lead (Pd-Pb/C) catalysts with different amounts of lead are prepared using a co-reduction method. The catalysts are characterized by various techniques, which reveal the formation of an alloy nanoparticle structure. The electrochemical activities of the catalysts towards ethanol oxidation in alkaline media are examined by cyclic voltammetry, linear sweep voltammetry and chronoamperometry methods. The results show that the Pd-Pb(4:1)/C catalyst exhibits a better catalytic activity than the Pd/C catalyst. From carbon monoxide (CO) stripping results, the addition of lead also facilitates the oxidative removal of adsorbed CO. The promoting effect of lead is explained by a bi-functional mechanism and cl-band theory. (C) 2009 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据