Surface structure and catalytic CO oxidation oscillations

被引：33

作者：

Danielak, R

Perera, A

Moreau, M

Frankowicz, M

Kapral, R

机构：

[1] UNIV PARIS 06,PHYS THEOR LIQUIDES LAB,CNRS,F-75256 PARIS,FRANCE

[2] JAGIELLONIAN UNIV,DEPT THEORET CHEM,KRAKOW,POLAND

[3] UNIV TORONTO,DEPT CHEM,CHEM PHYS THEORY GRP,TORONTO,ON M5S 1A1,CANADA

来源：

PHYSICA A | 1996年 / 229卷 / 3-4期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/0378-4371(96)00031-3

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A cellular automaton model is used to describe the dynamics of the catalytic oxidation of CO on a Pt(100) surface. The cellular automaton rules account for the structural phase transformations of the Pt substrate, the reaction kinetics of the adsorbed phase and diffusion of adsorbed species. The model is used to explore the spatial structure that underlies the global oscillations observed in some parameter regimes. The spatiotemporal dynamics varies significantly within the oscillatory regime and depends on the harmonic or relaxational character of the global oscillations. Diffusion of adsorbed CO plays an important role in the synchronization of the patterns on the substrate and this effect is also studied.

引用

页码：428 / 443

页数：16

共 31 条

[1] KINETIC PHASE-TRANSITIONS IN A SURFACE-REACTION MODEL WITH LOCAL INTERACTIONS [J].