Journal
CATALYSIS COMMUNICATIONS
Volume 12, Issue 6, Pages 505-509Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2010.11.017
Keywords
Water-gas shift reaction; Synergistic action; Structural precursor; Hydrotalcite; Aurichalcite
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Funding
- National High Technology Research and Development Program of China [2006AA11A189]
- Science and Technology Commission of Shanghai Municipality [06DZ12212]
- National Engineering Research Center of Advanced Steel Technology [050209]
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The Cu/ZnO/Al2O3 catalysts (Cu/Zn = 1, Al = 4-24 mol%) prepared by co-precipitation were investigated for low-temperature water-gas shift reaction (WGSR) in H-2-rich feed gas and characterized by means of XRD, DSC and TPR. The synergistic effect of the structural precursors was detected in catalyst containing Al level of 12 mol%, in which CO conversion reaches to 97.5% at 513 K. It suggests that aurichalcite has been partially intercalated into the hydrotalcite and assimilated the surrounding structure during precipitation, which eventually enhances the interaction between the active centers and supports of the catalyst. (C) 2010 Elsevier B.V. All rights reserved.
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