Three-way catalysts based on the use of palladium have proved highly effective at meeting the most stringent emissions legislation around the world. This has led to a rapid increase in the amount of palladium used in autocatalyst applications which has contributed to an increase in the palladium price. This has prompted a renewed interest in the use of platinum in advanced three-way catalyst (TWC) formulations. This paper compares the performance of advanced platinum-rhodium and palladium-rhodium technology on an engine test-bed. This showed the new platinum-rhodium catalyst to have equal or better performance at similar precious metal cost. Tests on selected vehicles confirmed future emissions standards can be achieved using the platinum-based catalysts.


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    Title :

    Advanced Platinum-Rhodium Exhaust Catalysts - An Economic Alternative To Palladium-Rhodium


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2000 India Mobility Conference ; 2000



    Publication date :

    2000-01-15




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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