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

被引：0
|
作者：
A. Galdikas
C. Descorme
D. Duprez
F. Dong
H. Shinjoh
机构：
[1] Kaunas University of Technology,Department of Physics
[2] LACCO,Faculté des Sciences
[3] UMR 6503 CNRS/University of Poitiers,Inc, Applied Catalysis Division
[4] Toyota Central R&D Labs,undefined
来源：
Topics in Catalysis | 2004年 / 30-31卷
关键词：
cerium–zirconium oxides; O/; O isotopic exchange; oxygen diffusion; oxygen storage capacity (OSC);
D O I：
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中图分类号：
学科分类号：
摘要：
A computer model was developed to take into account all the phenomena that can occur in 18O/16O 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.
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页码：405 / 409
页数：4
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