On the adsorption of hydrocarbons on deformable surfaces

被引：10
|
作者：
Levi, AC [1 ]
机构：
[1] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA
来源：
SURFACE SCIENCE | 1999年 / 426卷 / 03期
基金：
美国国家科学基金会;
关键词：
deformable surfaces; dimple; hydrocarbons; physisorption;
D O I：
10.1016/S0039-6028(99)00284-8
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 dimple appearing on a deformable metal surface upon physisorption of a foreign molecule is studied, and its effect on the adsorption energy is calculated. The surface energy contributes to the latter, the end effect being an increase of the adsorption energy due to the dimple formation. Specific attention is given to the case of hydrocarbons adsorbed on Au(lll), for which the dependence of the dimple shape and of the adsorption energy on the number of C atoms is studied, and the results are compared with the experimental data. The repulsion from the metal ion cores appears to be important for the longer molecules. The effect of molecular beading is also briefly considered. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
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页码：308 / 318
页数：11
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