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Issue 2, 2013
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Gold catalysts in environmental remediation and water-gas shift technologies

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This review presents studies and investigations of the use of gold catalysts in environmental applications, from the oxidation of CO and volatile organic compounds (VOCs) in environmental technologies to the production of hydrogen, a non-polluting energy source, in the water-gas shift (WGS) reaction. It summarizes a variety of results, from the discovery made by Haruta et al. about the catalytic behaviour of gold in CO oxidation, to the use of gold-based catalysts in environmental remediation, by the catalytic removal of different types of VOC using a wide variety of oxide supports and finally to the use of this highly active noble metal in WGS applications. It also discusses gold loading methods, comparing them in terms of simplicity, efficiency and the resultant particle size and dispersion of Au over various supports. The application of different types of supporting materials is also presented, with a critical discussion of the parameters affecting the choice and use of such materials, i.e. how the support interacts with gold particles and with pollutant molecules along with the advantages a support offers to VOC oxidation and WGS reactions. It ends by highlighting the potential of gold catalyts in the future.

Graphical abstract: Gold catalysts in environmental remediation and water-gas shift technologies

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Publication details

The article was received on 15 Jul 2012, accepted on 05 Nov 2012 and first published on 06 Nov 2012

Article type: Review Article
DOI: 10.1039/C2EE22859A
Citation: Energy Environ. Sci., 2013,6, 371-391
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    Gold catalysts in environmental remediation and water-gas shift technologies

    T. Barakat, J. C. Rooke, E. Genty, R. Cousin, S. Siffert and B. Su, Energy Environ. Sci., 2013, 6, 371
    DOI: 10.1039/C2EE22859A

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