OXIDATION OF CO WITH WO_3 AND MoO_3 PROMOTED WITH SMALL AMOUNTS OF PLATINUM,PALLADIUM,AND ALSO CESIUM CATIONS

摘要

It was shown that addition of Pt(Pd) and Cs~+ to WO_3 and MoO_3 increases their catalytic activity in the oxidation of CO,at the same time there was a considerable broadening of the low temperature region of the reaction.It was established that formation of an active surface occurs as a result of partial reduction of the molybdenum and tungsten oxides.It is proposed that the reaction occurs at the phase boundary between Pt(Pd) and W and Mo oxides containing oxygen vacancies.