期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 133, 期 18, 页码 6914-6917出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja200976j
关键词
-
资金
- Netherlands Foundation for Scientific Research (NWO)
- Netherlands Ministry of Economic Affairs
- Netherlands Ministry of Education, Culture and Science
On the basis of a comparison of the oxidation activity of a series of similar alcohols with varying pK(a) on gold electrodes in alkaline solution, we find that the first deprotonation is base catalyzed, and the second deprotonation is fast but gold catalyzed. The base catalysis follows a Hammett-type correlation with pK(a), and dominates overall reactivity for a series of similar alcohols. The high oxidation activity on gold compared to platinum for some of the alcohols is related to the high resistance of gold toward the formation of poisoning surface oxides. These results indicate that base catalysis is the main driver behind the high oxidation activity of many organic fuels on fuel cell anodes in alkaline media, and not the catalyst interaction with hydroxide.
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