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The bistability of the kinetics of CO oxidation on Pt at sub-atmospheric pressures can be complicated by surface-oxide formation. We present a simple mean-field model making it possible to describe a transition from the low reactive reaction regime occurring via the conventional mechanism of CO oxidation at CO excess, to the high reactive regime including CO interaction with a fully developed surface-oxide...
One of the most probable scenarios of the NO–CO reaction on the (111) surface of noble metals includes reversible NO and CO adsorption, NO dissociation, N2 desorption, and CO2 formation due to reaction between adsorbed CO and O species. Adopting this scheme, we analyze the reaction kinetics in the situation when the surface contains steps. Employing the mean-field kinetic equations with the kinetic...
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