Improvement in Oxygen Storage Capacity

960794

02/01/1996

Event
International Congress & Exposition
Authors Abstract
Content
Cerium oxide (Ceria) is known to have good oxygen storage capacity (OSC) and is used widely in three-way catalysts for automobiles, but it has a problem of heat stability since it is less stable than aluminium oxide (Alumina).
In the present work, cerium-zirconiumyttrium (Ce-Zr-Y) oxide systems were investigated with the aim of improving the heat stability of CeO2-based oxide systems, which would result in great improvement in OSC.
We found an optimum composition of Ce-Zr-Y oxide with platinum (Pt) dispersed in it at a quantity of 0.1 % in weight, which showed good OSC starting from 100°C upwards even after thermal aging at 1000°C for 2 hours under variable atmospheric conditions of rich-lean fluctuations.
Meta TagsDetails
DOI
https://doi.org/10.4271/960794
Pages
10
Citation
Tanaka, H., and Yamamoto, M., "Improvement in Oxygen Storage Capacity," SAE Technical Paper 960794, 1996, https://doi.org/10.4271/960794.
Additional Details
Publisher
Published
Feb 1, 1996
Product Code
960794
Content Type
Technical Paper
Language
English