NDLI: A new class of Cu/ZnO catalysts derived from zincian georgeite precursors prepared by co-precipitation

Content Provider	Royal Society of Chemistry (RSC)
Author	Yeo, Benjamin R. Taylor, Stuart H. Chater, Philip A. Smith, Paul J. Park, Colin W. Shaw, Greg M. Hutchings, Graham J. Lu, Li Kiely, Christopher J. Spencer, Michael S. Kondrat, Simon A. Bartley, Jonathan K. Kelly, Gordon J.
Copyright Year	2017
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 conditions 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/Al2O3 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.
Starting Page	2436
Ending Page	2447
Page Count	12
File Format	HTM / HTML PDF
ISSN	20416520
Volume Number	8
Issue Number	3
Journal	Chemical Science
DOI	10.1039/c6sc04130b
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Subscribed
Subject Keyword	Aluminium oxide Sodium Ammonium carbonate Sodium carbonate Aurichalcite Coprecipitation Zinc Malachite Methanol
Content Type	Text
Resource Type	Article
Subject	Chemistry

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