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The preparation and activity of copper zinc oxide catalysts for ambient temperature carbon monoxide oxidation

Taylor, Stuart H. ORCID:, Hutchings, Graham John ORCID: and Mirzaei, A. A. 2003. The preparation and activity of copper zinc oxide catalysts for ambient temperature carbon monoxide oxidation. Catalysis Today 84 (3-4) , pp. 113-119. 10.1016/S0920-5861(03)00264-5

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A series of copper zinc oxide catalysts have been prepared using a co-precipitation procedure by varying the ageing time in the precipitation liquor. The catalysts were studied for the oxidation of CO at ambient temperature. All the catalysts exhibited ambient temperature CO oxidation activity and the ageing time is important in controlling the catalyst activity. The most active catalysts were aged for 165min. Characterisation by powder X-ray diffraction showed that the catalyst precursors were sensitive to ageing time. It was also evident that ageing time influenced the precursor morphology. The calcined catalysts were all comprised of CuO and ZnO. The origin of the high activity for the CuO/ZnO catalysts prepared with short ageing times is not fully understood, but it appears that the highly dispersed CuO and ZnO, and the presence of solid solution phases formed during the controlled precipitation and ageing process are important. © 2003 Elsevier B.V. All rights reserved.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Cardiff Catalysis Institute (CCI)
Subjects: Q Science > QD Chemistry
Uncontrolled Keywords: Carbon monoxide; Copper compounds; Morphology; Oxidation; Precipitation (chemical); X ray diffraction analysis, Precursors, Catalyst activity
Additional Information: cited By (since 1996) 21
Publisher: Elsevier BV
ISSN: 09205861
Last Modified: 05 Jan 2023 14:18

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