Selective Oxidation of Ethanol to Acetaldehyde on Gold

被引：137

作者：

Gong, Jinlong

Mullins, C. Buddie ^{[1
]}

机构：

[1] Univ Texas Austin, Dept Chem Engn, Ctr Nano & Mol Sci & Technol, Austin, TX 78712 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2008年 / 130卷 / 49期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1021/ja805303s

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We present results from an investigation of the oxidative conversion of ethanol into acetaldehyde on Au(111) employing temperature-programmed desorption (TPD) and molecular beam reactive scattering (MBRS). Results from isotopic experiments show that ethanol initially undergoes O-H bond cleavage (producing ethoxide) followed by selective beta-(CH)-H-. bond (a to the oxygen) activation to form acetaldehyde and water on atomic oxygen precovered Au(111). Our study on bulk gold with atomic oxygen provides insight into the mechanistic details for high-surface-area gold-based catalysts and their application in the oxidation chemistry of alcohols employing molecular oxygen or air.

引用

收藏

页码：16458 / +

页数：3

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