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Issue 8, 2014
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Transformations of polyols to organic acids and hydrogen in aqueous alkaline media

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Abstract

In this paper we show that carbon nanofiber supported copper and nickel nanoparticles can selectively transform ethylene glycol and glycerol into value added oxygenates (organic acids) under anaerobic aqueous conditions. During aqueous phase oxidation Cu based catalysts showed a nearly quantitative yield (96% selectivity at 82% conversion) of glycolic acid from ethylene glycol. The reaction was carried out under alkaline conditions at relatively mild temperatures (150–180 °C) and produced H2 as co-product. The high selectivity towards glycolic acid was independent of the temperature. For glycerol oxidation a high selectivity (67% at full conversion) towards lactic acid was observed using Cu with competitive formation of glyceric acid, 1,2-propanediol tartronic acid and formation of H2 as co-product. The activity of Ni was comparable to that of Cu but it was less selective for the formation of desired oxygenates, glycolic acid (31%) and lactic acid (24%), due to the formation of formic acid.

Graphical abstract: Transformations of polyols to organic acids and hydrogen in aqueous alkaline media

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Publication details

The article was received on 25 Feb 2014, accepted on 22 May 2014 and first published on 09 Jun 2014


Article type: Paper
DOI: 10.1039/C4CY00249K
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Citation: Catal. Sci. Technol., 2014,4, 2353-2366

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    Transformations of polyols to organic acids and hydrogen in aqueous alkaline media

    T. van Haasterecht, T. W. van Deelen, K. P. de Jong and J. H. Bitter, Catal. Sci. Technol., 2014, 4, 2353
    DOI: 10.1039/C4CY00249K

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