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Issue 3, 2014
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Low temperature oxidation of methanol to methyl formate over Pd nanoparticles supported on γ-Fe2O3

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Abstract

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.

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

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Publication details

The article was received on 31 Oct 2013, accepted on 07 Dec 2013 and first published on 09 Dec 2013


Article type: Paper
DOI: 10.1039/C3CY00859B
Citation: Catal. Sci. Technol., 2014,4, 738-745
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    Low temperature oxidation of methanol to methyl formate over Pd nanoparticles supported on γ-Fe2O3

    R. Wojcieszak, M. N. Ghazzal, E. M. Gaigneaux and P. Ruiz, Catal. Sci. Technol., 2014, 4, 738
    DOI: 10.1039/C3CY00859B

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