Simulation of kinetic oscillations in catalytic reactions accompanied by adsorbate-induced surface restructuring

被引:41
|
作者
Zhdanov, VP [1 ]
机构
[1] Chalmers Univ Technol, Dept Appl Phys, S-41296 Gothenburg, Sweden
[2] Russian Acad Sci, Boreskov Inst Catalysis, Novosibirsk 630090, Russia
关键词
computer simulations; models of surface chemical reactions; surface reconstruction;
D O I
10.1016/S0039-6028(99)00328-3
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
We present Monte Carlo simulations of phase separation on the nanometer scale during kinetic oscillations in catalytic reactions accompanied by adsorbate-induced surface restructuring. As an example, we analyze the 2A + B-2 --> 2AB reaction mimicking CO oxidation on noble metals. The lattice-gas model employed to describe surface restructuring and the reaction steps takes into account substrate-substrate, substrate-adsorbate and adsorbate-adsorbate lateral interactions and predicts the formation of restructured islands even at low A coverages [as in the case of CO adsorption on Pt(100)]. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:345 / 357
页数:13
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