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Title: A new class of Cu/ZnO catalysts derived from zincian georgeite precursors prepared by co-precipitation
Authors: Smith, Paul J.
Kondrat, Simon A.
Chater, Philip A.
Yeo, Benjamin R.
Shaw, Greg M.
Lu, Li
Bartley, Jonathan K.
Taylor, Stuart H.
Spencer, Michael S.
Kiely, Christopher J.
Kelly, Gordon J.
Park, Colin W.
Hutchings, Graham J.
Issue Date: 2017
Publisher: © Royal Society of Chemistry
Citation: SMITH, P.J. ... et al, 2017. A new class of Cu/ZnO catalysts derived from zincian georgeite precursors prepared by co-precipitation. Chemical Science, 8 (3), pp. 2436-2447.
Abstract: Zincian georgeite, an amorphous copper-zinc hydroxycarbonate, has been prepared by co-precipitation using acetate salts and ammonium carbonate. Incorporation of zinc into the georgeite phase and mild ageing conditio ns inhibits crystallisation into zincian malachite or aurichalcite. This zincian georgeite precursor was used to prepare a Cu/ZnO catalyst, which exhibits a superior performance to a zincian malachite derived catalyst for methanol synthesis and the low temperature water-gas shift (LTS) reaction. Furthermore, the enhanced LTS activity and stability in comparison to that of a commercial Cu/ZnO/Al 2 O 3 catalyst, indicates that the addition of alumina as a stabiliser may not be required for the zincian georgeite derived Cu/ZnO catalyst. The enhanced performance is partly attributed to the exclusion of alkali metals from the synthesis procedure, which are known to act as catalyst poisons. The effect of residual sodium on the microstructural properties of the catalyst precursor was investigated further from preparations using sodium carbonate.
Description: This is an Open Access Article. It is published by the Royal Society of Chemistry under the Creative Commons Attribution-NonCommercial 3.0 Unported Licence (CC BY-NC). Full details of this licence are available at: http://creativecommons.org/licenses/by-nc/3.0/
Sponsor: UK Catalysis Hub, Engineering and Physical Sciences Research Council (grants EP/K014714/1, EP/K014714/1, EP/K014668/1, EP/K014706/1, EP/I019693/1), and Johnson Matthey.
Version: Published
DOI: 10.1039/c6sc04130b
URI: https://dspace.lboro.ac.uk/2134/28416
Publisher Link: https://doi.org/10.1039/c6sc04130b
ISSN: 2041-6520
Appears in Collections:Published Articles (Chemistry)

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