Investigation of the oxygen storage process on ceria- and ceria-zirconia-supported catalysts

S. Bedrane , C. Descorme (1) , D. Duprez

1 CARE - IRCELYON-Catalytic and Atmospheric Reactivity for the Environment

A total of 10 noble metal (Rh, Pt, Pd, Ru and It) catalysts, either supported on CeO2 or Ce0.63Zr0.37O2, were prepared. Catalysts were fully characterized using XRD, N-2 adsorption at -196degreesC, TEM and H-2 chemisorption. Oxygen storage processes were carefully investigated. The influence of temperature was checked and a key role of oxygen diffusion was further demonstrated. A review of the reactions involved in the CO transient oxidation reaction is finally proposed. (C) 2002 Elsevier Science B.V. All rights reserved.

Domaines: Catalyse; Environnement et Société

S. Bedrane, C. Descorme, D. Duprez. Investigation of the oxygen storage process on ceria- and ceria-zirconia-supported catalysts. Catalysis Today, 2002, 75 (1-4), pp.401-405. ⟨10.1016/s0920-5861(02)00089-5⟩. ⟨hal-01400701⟩