摘要
Ｐｔ（１１１）表面上一氧化碳的吸附与氧化反应１）刘金尧（清华大学一碳化工国家重点实验室北京１０００８４）ＸｕＭＺａｅｒａＦ（ＤｅｐａｒｔｍｅｎｔｏｆＣｈｅｍｉｓｔｒｙＵｎｉｖｅｒｓｉｔｙｏｆＣａｌｉｆｏｒｎｉａＲｉｖｅｒｓｉｄｅＣＡ９２５２１）关键词...
The adsorption and oxidation of CO on Pt(111) surface have been studied by measuring simultaneously the rate of CO 2 formation and CO uptake during CO molecular beam impingement on oxygen pre covered Pt(111) surfaces. The results reveal that at high surface temperatures the oxidation rate is determined by the CO adsorption rate which increases slightly with the decreasing surface oxygen coverage. As most of the oxygen are removed from the surface the oxidation rate is proportional to the oxygen coverage remained on the surface. At low temperature the step of CO and oxygen combination becomes important and complex.
出处
《分子催化》
EI
CAS
CSCD
北大核心
1997年第1期50-54,共5页
Journal of Molecular Catalysis(China)
关键词
铂
一氧化碳
氧化反应
化学吸附
吸附
Platinum, Carbon monoxide, Oxidation reaction, Dissociation chemisorption
