Abstract
The Brosilow-Ziff model, which for a uniform lattice shows superficial poisoning by the "checkerboard mechanism" for simplified Langmuir-Hinshelwood kinetics of the reduction reaction of NO by CO, has been studied in the case of various disordered substrates: two-dimensional (2D) incipient percolation cluster, backbone, and diffusion-limited aggregate (2D) fractals, together with a deterministic fractal and a statistical substrate, both three-dimensional. Some additional effects such as diffusion, nearest-next-neighbor sites, and desorption are also considered. The systems were found to be nonreactive and pseudoreactive in all the cases which showed the checkerboard mechanism. Otherwise, a reactive zone (window) related directly to the geometric structure of the substrate is seen.
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