Methanol electrooxidation on smooth platinum modified with Ru: The influence of Ru coverage and potentials on oxidative current and products

被引：0
作者：
Wang, HS [1 ]
机构：
[1] Beijing Normal Univ, Dept Chem, Beijing 100875, Peoples R China
来源：
CHINESE JOURNAL OF CHEMISTRY | 2003年 / 21卷 / 10期
关键词：
methanol electrooxidation; Ru modified Pt; current efficiency of CO2; differential electrochemical mass spectroscopy; cyclic voltammetry; potential step;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Methanol oxidation on smooth Pt electrode modified with different coverage of Ru was studied using cyclic voltammetry and potential step combined with differential electrochemical mass spectroscopy. The current efficiency of formed CO2 was calculated from faraday current and ion current of m/z = 44. The results show that Ru modified Pt electrode with the coverage of ca. 0.3 has the highest catalytic activity for methanol electrooxidation, i. e. faraday current and the current efficiency of CO2 at the low potentials reach to the maximum. In addition, Ru loses its co-catalytic properties at the high potentials.
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页码：1330 / 1334
页数：5
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