The influence of surface reconstructions on the CO oxidation reaction rate for the O/Ag(110) surface

被引：22
|
作者：
Burghaus, U [1 ]
Conrad, H [1 ]
机构：
[1] MAX PLANCK GESELL,FRITZ HABER INST,D-14195 BERLIN,GERMANY
来源：
SURFACE SCIENCE | 1996年 / 352卷
关键词：
carbon dioxide; carbon monoxide; catalysis; oxidation; oxygen; silver; surface chemical reaction; surface relaxation and reconstruction;
D O I：
10.1016/0039-6028(95)01131-5
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 influence of the oxygen induced surface reconstructions on the CO2 production rate at the Ag(110)-O system will be discussed, based on titration, reactive thermal desorption and LEED measurements. We present evidence that the reactivity of oxygen is reduced in the temperature range of 190-250 K by embedding oxygen in a reconstructed surface as compared to chemisorbed oxygen; above 250 K the coverage dependence of the oxygen induced reconstructions generates an autocatalytic component into the CO2 formation rate.
引用
收藏
页码：201 / 205
页数：5
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