Partipication of Oxygen Hydroxyl Groups, Covered the Aluminum Oxide Surface in the Reaction of Catalytic Oxidation of Carbon Monoxide on Pd/Al2O3 System Catalysts

Abstract

Using oxygen enriched with the isotope , the contribution of various forms of catalyst oxygen to the oxidation process was studied. It turned out that, contrary to expectations, the content of the isotopic label in the formed is significantly lower than expected and at the initial stage of the reaction is close to the natural content of . Taking into account that the pretreatment of the catalyst excluded the existence of any noticeable amount of adsorbed oxygen on the surface of both palladium and the support, it was concluded that is oxidized due to oxygen , and the study of the SIMS spectra showed that oxygen is involved in the process of oxidation hydroxyl cover .