Copper manganese oxide catalysts for ambient temperature carbon monoxide oxidation: Effect of calcination on activity

Jones, Cameron, Cole, K. J., Taylor, Stuart H. ORCID: https://orcid.org/0000-0002-1933-4874, Crudace, M. J. and Hutchings, Graham John ORCID: https://orcid.org/0000-0001-8885-1560 2009. Copper manganese oxide catalysts for ambient temperature carbon monoxide oxidation: Effect of calcination on activity. Journal of Molecular Catalysis A: Chemical 305 (1-2) , pp. 121-124. 10.1016/j.molcata.2008.10.027

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Abstract

The effect of the preparation conditions of a hopcalite (copper manganese oxide) catalyst is investigated for the oxidation of carbon monoxide at ambient temperature. In the present study the hopcalite is prepared by coprecipitation from an aqueous solution of copper and manganese nitrates. The activity of hopcalite materials is principally affected by two features, namely the surface area and the phase composition. Both of these features are controlled principally by the conditions used for the calcination that is required to activate the precursor, formed initially from coprecipitation. High activity is observed for materials that retain high surface area and are not crystalline. The interplay between these features and the calcination conditions is described and discussed, in particular using surface area corrected conversion data to ensure that the influence of the two features are separated.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry Cardiff Catalysis Institute (CCI)
Subjects:	Q Science > QD Chemistry
Uncontrolled Keywords:	Copper manganese oxide; Hopcalite; Ambient temperature CO oxidation
Publisher:	Elsevier
ISSN:	1381-1169
Last Modified:	05 Jan 2023 09:44
URI:	https://orca.cardiff.ac.uk/id/eprint/6019

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