Some aspects of the NO reduction reaction over rhodium catalysts

Abstract

A theoretical study has been performed of the reduction of NO by CO over Rh catalysts solving the system of equations generated by applying a steady state to the adsorbed species to determine the influence of the rates of the NO dissociation and δ-N ₂ production steps on the catalyst activity (measured as CO ₂ production) and selectivity to N ₂ O. As a general observation, it is concluded that joint data on activity and selectivity are required to make a critical selection of the kinetic parameters that can interpret adequately the experimental data.