Electrocatalytic oxidation of carbon monoxide and methanol on platinum surfaces decorated with ruthenium

被引：84
|
作者：
Spendelow, J. S.
Babu, P. K.
Wieckowski, A. [1 ]
机构：
[1] Univ Illinois, Dept Chem, Urbana, IL 61801 USA
[2] Univ Illinois, Dept Chem & Biomol Engn, Urbana, IL 61801 USA
来源：
CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE | 2005年 / 9卷 / 1-2期
基金：
美国国家科学基金会;
关键词：
Pt(111)/Ru; carbon monoxide; methanol; electrocatalysis; fuel cell; spontaneous deposition;
D O I：
10.1016/j.cossms.2006.02.009
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ruthenium is the most active and stable promoter of platinum known for low-temperature fuel cell anode reactions such as the oxidation of methanol and CO. The mechanism of promotion by Ru, including bifunctional and ligand effects, is discussed in this selective review. Also examined are effects of surface structure, Ru distribution, and Ru oxidation state. For this purpose, some review of the mechanism of CO and methanol oxidation on Pt/Ru surfaces is provided. The review concentrates on pure Pt nanoparticles and bulk electrodes modified by deposition of Ru, although some discussion of Pt/Ru alloys and Pt-modified Ru electrodes is included in order to address and discuss all aspects of promotion by Ru. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：37 / 48
页数：12
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