(Ce, Zr)O2 Solid Solutions for Three-Way Catalysts

970463

02/24/1997

Event
International Congress & Exposition
Authors Abstract
Content
It has been recently shown that (Ce, Zr)O2 mixed oxides provide improved catalytic performances compared to pure CeO2. Cerium oxide is the active Oxygen Storage Capacity (OSC) component in three way catalysts. However, higher performances, including OSC enhancement, can be achieved with thermally stable solid solutions of Ce and Zr oxides. In the present paper, we describe the structure and the advantages of Ce rich (Ce, Zr)O2 solid solutions and the improved catalytic properties of these materials when used in association with platinum. Various analytical techniques were used including thermo-reduction methods, OSC measurements, surface area measurements, XRD, HRTEM, XPS, and XANES/EXAFS.
Meta TagsDetails
DOI
https://doi.org/10.4271/970463
Pages
15
Citation
Cuif, J., Blanchard, G., Touret, O., Seigneurin, A. et al., "(Ce, Zr)O2 Solid Solutions for Three-Way Catalysts," SAE Technical Paper 970463, 1997, https://doi.org/10.4271/970463.
Additional Details
Publisher
Published
Feb 24, 1997
Product Code
970463
Content Type
Technical Paper
Language
English