Kinetics of Catalysis with Surface Disorder

Details Kinetics of Catalysis with Surface Disorder Kinetics of Catalysis with Surface Disorder

1996-02-15

arxiv.org/abs/cond-mat/9602088v1

Phys.Rev.E 54(1996) 1101.

Physics

Condensed Matter

LaTex, 19 pages, 1 figure included, requires epsf.sty

Scientific paper

10.1103/PhysRevE.54.1101

We study the effects of generalised surface disorder on the monomer-monomer model of heterogeneous catalysis, where disorder is implemented by allowing different adsorption rates for each lattice site. By mapping the system in the reaction-controlled limit onto a kinetic Ising model, we derive the rate equations for the one and two-spin correlation functions. There is good agreement between these equations and numerical simulations. We then study the inclusion of desorption of monomers from the substrate, first by both species and then by just one, and find exact time-dependent solutions for the one-spin correlation functions.

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