KINETIC REGULARITIES FOR Pd AND (Pd-Ag) CATALYSTS ON PIT ACTIVATED CHARCOAL (PAC) IN CARBON MONOXIDE OXIDATION

摘要

Pit activated charcoal (PAC) supported Pd and Pd-Ag catalysts were investigated. Catalytic activity and kinetic regularity of CO oxidation reaction on PAC supported Pd and Pd-Ag catalysts are shown. The cause of such difference of kinetic regularities for a palladium, on the one hand, and Pd-Ag systems, on the other hand, is a capability of proceeding of CO oxidation reaction on a palladium by the heterogeneous - homogeneous mechanism under certain conditions (high temperature, low CO concentrations), and impossibility of implementation of such mechanism for this reacting on Pd-Ag catalysts.