KINETIC DESCRIPTION OF DIFFUSION-LIMITED REACTIONS IN RANDOM CATALYTIC MEDIA

We study the kinetics of bimolecular, catalytically-activated reaction s (CARs) in d-dimensions. The elementary reaction act between reactant s takes place only when these meet in the vicinity of a catalytic site ; such sites are assumed to be immobile and randomly distributed in sp ace. For CARs we develop a kinetic formalism, based on Collins-Kimball -type ideas; within this formalism we obtain explicit expressions for the effective reaction rates and for the decay of the reactants' conce ntrations. (C) 1998 American Institute of Physics. [S0021-9606(98)5050 3-X].