Irrelevance of Carbon Monoxide Poisoning in the Methanol Oxidation Reaction on a PtRu Electrocatalyst

被引：148
|
作者：
Chen, De-Jun [1 ]
Tong, YuYe J. [1 ]
机构：
[1] Georgetown Univ, Dept Chem, Washington, DC 20057 USA
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2015年 / 54卷 / 32期
基金：
美国国家科学基金会;
关键词：
ATR-SEIRAS; CO poisoning; methanol oxidation reaction; PtRu electrocatalysis; reaction mechanisms; INDEX CRYSTAL PLANES; FUEL-CELLS; RU ALLOY; PLATINUM; CO; ELECTROOXIDATION; ELECTRODES; HYDROGEN; ISOTOPE; ELECTROCHEMISTRY;
D O I：
10.1002/anie.201503917
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Based on detailed insitu attenuated total-reflection-surface-enhanced IR reflection absorption spectroscopy (ATR-SEIRAS) studies of the methanol oxidation reaction (MOR) on Ru/Pt thin film and commercial Johnson-Matthey PtRu/C, a revised MOR enhancement mechanism is proposed in which CO on Pt sites is irrelevant but instead Pt-Ru boundary sites catalyze the oxygen insertion reaction that leads to the formation of formate and enhances the direct reaction pathway.
引用
收藏
页码：9394 / 9398
页数：5
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