Development of Advanced Three-Way Catalysts that Enable Low PGM Loadings for Future Mercosur Emissions Legislation 2002-01-3551
This paper describes the development of new high performance three-way catalyst (TWC) formulations with improved activity and enhanced thermal stability. These new TWC formulations enable the converter to be fitted closer to the engine and allow this future legislation to be met with catalysts using PGM levels significantly lower than those currently being employed. The performance benefits of these advanced platinum- and palladium-based catalysts are demonstrated on a number of different vehicles after bench-engine ageing.
Citation: Collins, N., Morris, D., Ravenscroft, A., Twigg, M. et al., "Development of Advanced Three-Way Catalysts that Enable Low PGM Loadings for Future Mercosur Emissions Legislation," SAE Technical Paper 2002-01-3551, 2002, https://doi.org/10.4271/2002-01-3551. Download Citation
Neil R. Collins, Darrell Morris, Alex L. Ravenscroft, Martyn V. Twigg, Gianmaria D. Borgialli, Almir J. Ribeiro
Johnson Matthey Catalytic Systems Division