REACTIVITY OF TRANSITION-METAL SURFACES

被引：9
|
作者：
VANSANTEN, RA
机构：
[1] Schuit Institute of Catalysis, University of Technology, Eindhoven
来源：
CATALYSIS LETTERS | 1992年 / 16卷 / 1-2期
关键词：
CHEMISORPTION; QUANTUM CHEMISTRY; SURFACE ELECTRONIC STRUCTURE; COORDINATION; GROUP ORBITALS;
D O I：
10.1007/BF00764355
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：
Rules of chemisorption of atoms and molecules to transition-metal surfaces are analyzed in terms of the distribution of electrons over bonding and antibonding adsorbate-surface orbital fragments. The larger reactivity of low index planes compared to that of the higher index planes is shown to be related to the lower localization energies of valence electrons when the coordination number of surface atoms decreases. For molecular adsorption the relative stability of adsorption complexes is controlled by the balance of donating and backdonating interaction terms.
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页码：59 / 69
页数：11
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