Honeycomb supported Co3O4/CeO2 catalyst for CO/CH4 emissions abatement: effect of low Pd-Pt content on the catalytic activity

Giulio Deganello, Deganello, Leonarda F. Liotta, E. Merlone Borla, Pidria, Gabriella Di Carlo, Giuseppe Pantaleo

    Risultato della ricerca: Articlepeer review

    26 Citazioni (Scopus)

    Abstract

    A structured Co3O4–CeO2 composite oxide, containing 30% by weight of Co3O4, has been prepared over a cordieritic honeycomb support. The bimetallic, Pd–Pt catalyst has been obtained by impregnation of the supported Co3O4–CeO2 with Pd and Pt precursors in order to obtain a total metal loading of 50 g/ft3.CO, CH4 combined oxidation tests were performed over the catalyzed monoliths in realistic conditions, namely GHSV = 100,000 h−1 and reaction feed close to emission from bi-fuel vehicles. The Pd–Pt un-promoted Co3O4–CeO2 is promising for cold-start application, showing massive CO conversion below 100 °C, in lean condition.A strong enhancement of the CH4 oxidation activity, between 400 and 600 °C, has been observed by addition to the Co3O4–CeO2 of a low amount of Pd–Pt metals.
    Lingua originaleEnglish
    pagine (da-a)229-304
    Numero di pagine76
    RivistaCatalysis Communications
    Volume8
    Stato di pubblicazionePublished - 2007

    All Science Journal Classification (ASJC) codes

    • Catalysis
    • Chemistry(all)
    • Process Chemistry and Technology

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