The effect of adsorbate-adsorbate interaction on the structure of chemisorbed overlayers on TiO2(110)

被引：55

作者：

Guo, Q ^{[1
]}

Williams, EM ^{[1
]}

机构：

[1] Univ Liverpool, Surface Sci Res Ctr, Liverpool L69 3BX, Merseyside, England

来源：

SURFACE SCIENCE | 1999年 / 433卷

基金：

英国工程与自然科学研究理事会;

关键词：

carboxylic acid; chemisorption; low energy electron diffraction (LEED); scanning tunnelling microscopy; single crystal surfaces; titanium oxide;

D O I：

10.1016/S0039-6028(99)00105-3

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 acetic and benzoic acid on a TiO2(110) surface has been studied using scanning tunnelling microscopy (STM) and low energy electron diffraction (LEED). Both acids dissociate upon adsorption at room temperature and with saturation coverage for both species, LEED identifies a (2 x 1) pattern. Under the same conditions. STM shows a (2 x 1) form for acetate, but a predominance of (2 x 2) with benzoate. It is proposed that rotation of the phenyl ring takes place, allowing the formation of dimers of benzoate at the surface. 8 1999 Elsevier Science B.V. All rights reserved.

引用

页码：322 / 326

页数：5

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