Double-bond activation in unsaturated aldehydes:: conversion of acrolein to propene and ketene on Pt(111) surfaces

被引：49

作者：

de Jesús, JC

Zaera, F ^{[1
]}

机构：

[1] Univ Calif Riverside, Dept Chem, Riverside, CA 92521 USA

[2] Intevep SA, Caracas 1070A, Venezuela

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 1999年 / 138卷 / 2-3期

基金：

美国国家科学基金会;

关键词：

temperature-programmed desorption; reflection-absorption infrared; unsaturated aldehydes; platinum surfaces; acrolein;

D O I：

10.1016/S1381-1169(98)00169-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The surface chemistry of acrolein on Pt(111) single-crystal surfaces was investigated under vacuum by temperature-programmed desorption (TPD) and reflection-absorption infrared spectroscopies (RAIRS). The main thermal decomposition path is via the decarbonylation of the unsaturated aldehyde to carbon monoxide and ethene, but it was found that small amounts of propene and ketene (CH2CO) are also formed by following steps unprecedented in metal-based chemical systems. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：237 / 240

页数：4

共 15 条

[1] Adsorption of some substituted ethylene molecules on Pt(111) at 95 K .2. A FT-RAIRS study [J].