Low temperature oxidation of methanol to methyl formate over Pd nanoparticles supported on γ-Fe2O3

R. Wojcieszak, M. N. Ghazzal, E. M. Gaigneaux, P. Ruiz

    Résultats de recherche: Contribution à un journal/une revueArticleRevue par des pairs

    Résumé

    Pd nanoparticles supported on γ-Fe2O3 (2 wt.%) were synthesized using the water-in-oil microemulsion method (using hydrazine as a reductant agent). Materials were characterized by N2-BET at low temperature, XRD, XPS, Raman, and FTIR and tested in the gas phase reaction of oxidation of methanol. The direct formation of methyl formate (MF) from methanol was observed. Supported palladium catalysts produced methyl formate at low temperature (<150 °C) with a relatively high selectivity depending on the Fe+2/Fe+3 ratio (2:1, 1:1, 1:2) used for the preparation of the supports. Methyl formate is already formed at 50 °C with the maximum at about 80 °C. At higher temperature, methyl formate is no longer formed and the oxidation to CO2 and CO occurs. Raman studies indicated the changes in the structure of the Fe2O3 support in the case of the 1:2 sample after chemical reduction with hydrazine.

    langue originaleAnglais
    Pages (de - à)738-745
    Nombre de pages8
    journalCatalysis Science and Technology
    Volume4
    Numéro de publication3
    Les DOIs
    Etat de la publicationPublié - 1 mars 2014

    Empreinte digitale

    Examiner les sujets de recherche de « Low temperature oxidation of methanol to methyl formate over Pd nanoparticles supported on γ-Fe<sub>2</sub>O<sub>3</sub> ». Ensemble, ils forment une empreinte digitale unique.

    Contient cette citation