The adsorption of alcohols on hydroxylated Si(100)-2x1

被引：36

作者：

Bitzer, T ^{[1
]}

Richardson, NV ^{[1
]}

Schiffrin, DJ ^{[1
]}

机构：

[1] UNIV LIVERPOOL,DEPT CHEM,LIVERPOOL L69 3BX,MERSEYSIDE,ENGLAND

来源：

SURFACE SCIENCE | 1997年 / 382卷 / 1-3期

基金：

英国工程与自然科学研究理事会;

关键词：

alcohols; chemisorption; electron energy loss spectroscopy; silicon; single crystal surfaces;

D O I：

10.1016/S0039-6028(97)00166-0

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 ethanol, isopropanol and tert-butanol on clean and H2O pre-dosed Si(100)-2 x 1 has been studied by high resolution electron energy loss spectroscopy (HREELS). We observe that the reactivity of the alcohols towards Sii 100)-2 x 1 pre saturated with H2O decreases with increasing number of methyl groups in the series (CH3)nCH(3-n)OH (n=1, 2, 3). All alcohols chemisorb on the silicon substrates via a deprotonation of the OH group with the formation of alkoxy and silicon hydride species. In the case of H2O saturated Si(100)-2 x 1. the adsorption involves cleavage of the Si-Si bond of the silicon surface dimer. (C) 1997 Elsevier Science B.V.

引用

页码：L686 / L689

页数：4

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