Comparative study of new and established heterogeneous oxygen catalysts

Abstract

The kinetics of catalysis of a number of new and established heterogeneous O₂ catalysts have been studied using Ce^IV as the oxidant via both the disappearance of the Ce^IV ions and concomitant appearance of O₂. The most active of the catalysts tested utilised a PGM(IV) oxide, usually Ru or Ir, prepared by the Adams method, which appears to generate microcrystalline powders with high surface areas and optimum activities per unit area.