A model of normal transfer of electrons on CO+K/Cu(111) surface

被引：2

作者：

Li, HY ^{[1
]}

Zhu, L ^{[1
]}

Xu, YB ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 1998年 / 126卷 / 3-4期

关键词：

work function change; coadsorption; CO+K/Cu(111) surface;

D O I：

10.1016/S0169-4332(97)00792-7

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：

Co-adsorption of CO and Potassium on Cu(lll) surface was investigated using a Kelvin probe. We found that CO can adsorb on the potassium pre-covered Cu(lll) surface at room temperature. When theta(K) < theta(min) (theta(min) = 0.18), the adsorption of CO makes the work function increase. When theta(K) > theta(min), the work function first decreases and then increases with CO exposure. the results can be well accounted for by jellium-slab model [R.Q. Wu, K.L. Chen, D.S. Wang, Phys. Rev. B 38 (1988) 3180]. A Model of normal transfer of electrons is proposed for the co-adsorption of CO and potassium on the Cu(lll) surface. (C) 1998 Elsevier Science B.V.

引用

页码：342 / 346

页数：5

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