The capability of theoretical durability studies to offer an efficient alternative methodology for predicting the potential performance of catalysts has improved in recent years. In this regard, multi-scale theoretical methods for predicting sintering behavior of Pt on various catalyst supports are being developed. Various types of Pt diffusions depending on support were confirmed by the micro-scale ultra accelerated quantum chemical molecular dynamics (UA-QCMD) method. Moreover, macro-scale sintering behavior of Pt/ɣ-Al2O3, Pt/ZrO2 and Pt/CeO2 catalyst were studied using a developed 3D sintering simulator. Experimental results were well reproduced. While Pt on ɣ-Al2O3 sintered significantly, Pt on ZrO2 sintered slightly and Pt on CeO2 demonstrated the highest stability against sintering.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Multi-scale Theoretical Study of Sintering Dynamics of Pt for Automotive Catalyst


    Weitere Titelangaben:

    Sae Int. J. Fuels Lubr
    Sae International Journal of Fuels and Lubricants


    Beteiligte:
    Suzuki, Ai (Autor:in) / Endou, Akira (Autor:in) / Miyamoto, Akira (Autor:in) / Tsuboi, Hideyuki (Autor:in) / Takaba, Hiromitsu (Autor:in) / Nakamura, Katsuyoshi (Autor:in) / Okushi, Kotaro (Autor:in) / Williams, Mark C. (Autor:in) / Kubo, Momoji (Autor:in) / Hatakeyama, Nozomu (Autor:in)

    Kongress:

    SAE 2009 Powertrains Fuels and Lubricants Meeting ; 2009



    Erscheinungsdatum :

    2009-11-02


    Format / Umfang :

    9 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Muli-scale theoretical study of sintering dynamics of Pt for automotive catalyst

    Suzuki,A. / Sato,R. / Nakamura,K. et al. | Kraftfahrwesen | 2009


    Automotive Exhaust Catalyst Multi-functionalized by Addition of Basic Materials

    Shinjoh, H. | British Library Conference Proceedings | 2003


    Advances in automotive catalyst supports

    Howitt,J.S. / Corning Glass Works,US | Kraftfahrwesen | 1985