Various noble metal compositions are used for three-way catalyst applications. The most typical composition contains platinum and rhodium at various loadings and ratios. Recently palladium and rhodium compositions have received considerable attention by automobile companies. The strengths and weaknesses of the various noble metal use strategies have been widely discussed. Unfortunately, the content for much of the discussion has been based on information generated in the early to mid-1970s with catalysts of relatively simple formulation when compared to today's higher technology products. The present study compares the relative durability performance of modern platinum/rhodium and palladium/rhodium catalysts of identical loading under a variety of aging and evaluation conditions. These conditions were chosen to simulate some of the operating conditions encountered in U.S. and European driving applications. The results of the study also illustrate the progress made in developing high performance palladium/rhodium catalyst technologies.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    The role of durability and evaluation conditions on the performance of Pt/Rh and Pd/Rh automotive catalysts


    Weitere Titelangaben:

    Bedeutung der Lebensdauer und der Prüfbedingungen für das Verhalten von Pt/Rh- und Pd/Rh-Abgaskatalysatoren


    Beteiligte:
    Summers, J.C. (Autor:in) / Williamson, W.R. (Autor:in) / Scaparo, J.A. (Autor:in)

    Erschienen in:

    SAE-Papers ; Mar ; 1-12


    Erscheinungsdatum :

    1990


    Format / Umfang :

    12 Seiten, 11 Bilder, 6 Tabellen, 21 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    The role of durability and evaluation conditions on the performance of Pt/Rh and Pd/Rh automotive catalysts

    Summers,J.C. / Williamson,W.B. / Scaparo,J.A. et al. | Kraftfahrwesen | 1990


    The Role of Durability and Evaluation Conditions on the Performance of Pt/Rh and Pd/Rh Automotive Catalysts

    Scaparo, J. A. / Summers, J. C. / Williamson, W. B. | SAE Technical Papers | 1990


    Durability of Automotive Catalysts for European Applications

    Deakin, A. / Gandhi, H. S. / Szpilka, M. E. et al. | SAE Technical Papers | 1985


    Durability of Palladium Only Three-way Automotive Emisson Control Catalysts

    Summers, J. C. / White, J. J. / Williamson, W. B. | SAE Technical Papers | 1989


    Durability of palladium only three-way automotive emission control catalysts

    Summers,J.C. / White,J.J. / Williamson,W.B. et al. | Kraftfahrwesen | 1989