Time evolution of the catalytic oxidation of carbon monoxide on a disordered substratum
- 7 June 1990
- journal article
- Published by IOP Publishing in Journal of Physics A: General Physics
- Vol. 23 (11) , L545-L549
- https://doi.org/10.1088/0305-4470/23/11/006
Abstract
The time evolution of the reactant concentrations, the rate of production and the concentration of vacancies around islands of the minority species, in a model for the catalytic oxidation of carbon monoxide, is studied on percolation clusters by means of Monte Carlo simulations and scaling arguments. The model exhibits two kinetic transitions and the relevant exponents for the time evolution of the above-mentioned quantities are evaluated at criticality. The influence of the fractal substratum on the behaviour of the reaction is discussed and compared with reported results for homogeneous media.Keywords
This publication has 10 references indexed in Scilit:
- Time evolution of a catalytic surface reaction: oxidation of carbon monoxideJournal of Physics A: General Physics, 1989
- Kinetic oscillations in the rate of CO oxidation on Pd(110)Surface Science, 1989
- The reaction dimension in catalysis on dispersed metalsJournal of the American Chemical Society, 1988
- Time evolution of an irreversible catalytic recombination processJournal of Physics A: General Physics, 1988
- Island models and the catalytic oxidation of carbon monoxideSurface Science Letters, 1987
- Simple models for heterogeneous catalysis: Phase transition-like behavior in nonequilibrium systemsThe Journal of Chemical Physics, 1987
- Surface Fractal Dimension of Small Metallic ParticlesPhysical Review Letters, 1986
- Kinetic Phase Transitions in an Irreversible Surface-Reaction ModelPhysical Review Letters, 1986
- Island models and the catalytic oxidation of carbon monoxide and carbon monoxide-olefin mixturesSurface Science, 1984
- Molecular fractal surfacesNature, 1984