ZGB SURFACE-REACTION MODEL WITH HIGH DIFFUSION RATES

被引：56

作者：

EVANS, JW ^{[1
]}

机构：

[1] IOWA STATE UNIV SCI & TECHNOL,DEPT MATH,AMES,IA 50011

来源：

JOURNAL OF CHEMICAL PHYSICS | 1993年 / 98卷 / 03期

关键词：

D O I：

10.1063/1.464174

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 diffusionless ZGB (monomer-dimer) surface reaction model exhibits a discontinuous transition to a monomer-poisoned state when the fraction of monomer adsorption attempts exceeds 0.525. It has been claimed that this transition shifts to 2/3 with introduction of rapid diffusion of the monomer species, or of both species. We show this is not the case, 2/3 representing the spinodal rather than the transition point. For equal diffusion rates of both species, we find that the transition only shifts to 0.5951+/-0.0002.

引用

页码：2463 / 2465

页数：3

共 16 条

[1] KINETIC PHASE-TRANSITIONS IN A SURFACE-REACTION MODEL - MEAN-FIELD THEORY [J].