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Issue 1, 2012
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On the mechanism of selective oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid over supported Pt and Au catalysts

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Abstract

The mechanism of selective oxidation of aqueous 5-hydroxymethylfurfural (HMF) at high pH was studied over supported Pt and Au catalysts. Results from labeling experiments conducted with 18O2 and H218O indicated that water was the source of oxygen atoms during the oxidation of HMF to 2-hydroxymethylfurancarboxylic acid (HFCA) and 2,5-furandicarboxylic acid (FDCA), presumably through direct participation of hydroxide in the catalytic cycle. Molecular oxygen was essential for the production of FDCA and played an indirect role during oxidation by removing electrons deposited into the supported metal particles. A reaction path for HMF oxidation to FDCA was proposed.

Graphical abstract: On the mechanism of selective oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid over supported Pt and Au catalysts

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Publication details

The article was received on 30 Aug 2011, accepted on 27 Sep 2011 and first published on 31 Oct 2011


Article type: Paper
DOI: 10.1039/C1GC16074E
Citation: Green Chem., 2012,14, 143-147
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    On the mechanism of selective oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid over supported Pt and Au catalysts

    S. E. Davis, B. N. Zope and R. J. Davis, Green Chem., 2012, 14, 143
    DOI: 10.1039/C1GC16074E

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