The influence of precursor on the preparation of CeO2 catalysts for the total oxidation of the volatile organic compound propane

Aggett, Kieran, Davies, Thomas E., Morgan, David J. ORCID: https://orcid.org/0000-0002-6571-5731, Hewes, Dan and Taylor, Stuart H. ORCID: https://orcid.org/0000-0002-1933-4874 2021. The influence of precursor on the preparation of CeO2 catalysts for the total oxidation of the volatile organic compound propane. Catalysts 11 (12) , 1461. 10.3390/catal11121461

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Abstract

CeO2 catalysts were prepared by a precipitation method using either (NH4)2Ce(NO3)6 or Ce(NO3)3, as CeIV or CeIII precursors respectively. The influence of the different precursors on catalytic activity was evaluated for the total oxidation of propane with water present in the feed. The catalyst prepared using the CeIV precursor was more active for propane total oxidation. The choice of precursor influenced catalyst properties such as surface area, reducibility, morphology, and active oxygen species. The predominant factor associated with the catalytic activity was related to the formation of either CeO2.nH2O or Ce2(OH)2(CO3)2.H2O precipitate species, formed prior to calcination. The formation of CeO2.nH2O resulted in enhanced surface area which was an important factor for controlling catalyst activity.

Item Type:	Article
Date Type:	Published Online
Status:	Published
Schools:	Chemistry Cardiff Catalysis Institute (CCI)
Additional Information:	This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
Publisher:	MDPI
ISSN:	2073-4344
Date of First Compliant Deposit:	16 December 2021
Date of Acceptance:	22 November 2021
Last Modified:	14 Nov 2024 08:48
URI:	https://orca.cardiff.ac.uk/id/eprint/146194

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