ADSORBATE CLUSTERING AND SURFACE RATES ABOVE TC - A MODIFIED MEAN-FIELD APPROACH

被引:3
作者
DATAR, AS
PRASAD, SD
机构
[1] Physical Chemistry Division, National Chemical Laboratory, Pune
关键词
THERMAL-DESORPTION; OXIDATION; MOLECULES; KINETICS; MODEL; CO;
D O I
10.1016/0009-2614(91)90378-M
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 role of adsorbate interactions in clustering and effecting appreciable changes in activation energy (DELTA-E) is shown to be significant even at T > T(c). Using a modified mean-field approach, we show that if a correction to ground-state probability is invoked along with DELTA-E, then attractive and repulsive forces predict enhancement and decrease in surface rates, which is an unconventional result.
引用
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页码:445 / 449
页数:5
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