Study of the oxygen diffusion on three-way catalysts: a kinetic model

A. Galdikas , C. Descorme (1) , D. Duprez , F. Dong , H. Shinjoh

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

A computer model was developed to take into account all the phenomena that can occur in O-18/O-16 isotopic exchange over Pt/ CeZrOx materials: adsorption/desorption on the metal, surface and bulk O diffusion. Discriminating each step of the exchange process is no longer necessary: kinetic parameters and O diffusivity can be calculated in a single experiment.

Domaines: Catalyse; Environnement et Société

A. Galdikas, C. Descorme, D. Duprez, F. Dong, H. Shinjoh. Study of the oxygen diffusion on three-way catalysts: a kinetic model. Topics in Catalysis, 2004, 30-1 (1-4), pp.405-409. ⟨10.1023/b:toca.0000029782.78561.47⟩. ⟨hal-01400716⟩