Enhancements in the thermal stability of three-way catalysts have been achieved by: 1) developing improved methods for the incorporation of ceria into catalyst formulations and 2) identifying a proprietary stabilizer which reduces the rate of ceria sintering at high temperature. Improvements in thermal stability are demonstrated by comparing the FTP and engine dynamometer performance of new formulations with a standard formulation after aging on several high temperature engine dynamometer cycles.
Advanced Three-Way Catalyst Formulations for High Temperature Applications
Sae Technical Papers
International Congress & Exposition ; 1993
1993-03-01
Aufsatz (Konferenz)
Englisch
Advanced three-way catalyst formulations for high temperature applications
Kraftfahrwesen | 1993
|SAE Technical Papers | 2002
|Catalyst formulations 1960 to present
Kraftfahrwesen | 1989
|