THE REACTIVITY OF SULFUR-CONTAINING MOLECULES ON NOBLE-METAL SURFACES .3. ETHANETHIOL ON AU(110) AND AG(110)

被引：49

作者：

JAFFEY, DM ^{[1
]}

MADIX, RJ ^{[1
]}

机构：

[1] STANFORD UNIV,DEPT CHEM ENGN,STANFORD,CA 94305

来源：

SURFACE SCIENCE | 1994年 / 311卷 / 1-2期

关键词：

D O I：

10.1016/0039-6028(94)90487-1

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 adsorption of ethanethiol on clean and partially sulfided Au(110) and Ag(110) surfaces has been investigated using temperature programmed reaction spectroscopy. In all cases a portion of the adsorbed ethanethiol undergoes S-H bond cleavage below 350 K to form ethyl thiolate; H-2 and H2S are evolved between 150 and 350 K. Ethyl thiolate decomposes above 400 K on Ag(110) to yield ethylene, together with ethane and some dihydrogen. On Au(110) ethyl thiolate decomposes in the same temperature range to evolve a mixture of ethylene, ethane, ethanethiol and diethyl sulfide. The evolution of sulfur-containing molecules from thiolate decomposition is novel and appears to be unique to gold. On both surfaces the decomposition kinetics are dependent on surface sulfur coverage.

引用

页码：159 / 171

页数：13

共 37 条

[1] THE MECHANISM OF THE DECOMPOSITION OF METHANETHIOL ON FE(100) [J].