The basic working principles and the different types of multifunctional catalysts for “three way systems” are reviewed. Test methods for multifunctional catalysts characterizing activity and stability are described. Ageing procedures in air may cause problems with rhodium containing multifunctional catalysts.Different surface oxidation states of rhodium depending on pretreatment conditions were detected in multifunctional catalysts. The influence of those oxidation states on activity is discussed.


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    Titel :

    Characterization of Multifunctional Catalysts for Automotive Exhaust Purification


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Koberstein, E. (Autor:in)

    Kongress:

    1977 International Automotive Engineering Congress and Exposition ; 1977



    Erscheinungsdatum :

    01.02.1977




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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