Low Temperature CO Oxidation Kinetics over Activated Carbon Supported Pt-SnOx Catalysts

Authors : Fatma Soyal BALTACIOĞLU, Berrin GÜLYÜZ

Pages : 455-464

View : 17 | Download : 9

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The kinetics of low temperature CO oxidation were studied over sequentially impregnated 1wt%Pt-0.25wt%SnOx supported on HNO3-oxidized activated carbon insert ignore into journalissuearticles values(AC3); using a wide range of CO insert ignore into journalissuearticles values(1-10 mol%); and O2 insert ignore into journalissuearticles values(1-4 mol%); concentrations. Intrinsic kinetic data were obtained in the initial rates region at 383 K in the absence and presence of 5-45 mol% H2 in the feed. A power-function rate expression with positive dependence on CO insert ignore into journalissuearticles values(0.96); and negative dependence on oxygen insert ignore into journalissuearticles values(--0.31); was obtained for the low temperature oxidation of CO. The effect of H2 on CO oxidation rates was also investigated under similar conditions.
Keywords : Carbon monoxide, oxidation, kinetics, Pt Sn catalysts, activated carbon supports, PROX