Preparation of TiO2 using supercritical CO2 antisolvent precipitation (SAS): A support for high activity gold catalysts

Tang, Z-R, Bartley, Jonathan Keith ORCID: https://orcid.org/0000-0003-4640-541X, Taylor, Stuart H. ORCID: https://orcid.org/0000-0002-1933-4874 and Hutchings, Graham John ORCID: https://orcid.org/0000-0001-8885-1560 2006. Preparation of TiO2 using supercritical CO2 antisolvent precipitation (SAS): A support for high activity gold catalysts. Studies in Surface Science and Catalysis 162 , pp. 219-226. 10.1016/S0167-2991(06)80910-9

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Abstract

A supercritical anti-solvent precipitation technique has been used to prepare a novel Titania catalyst support. The Titania precursor was prepared by precipitating TiO (acac)2 from a solution of methanol using supercritical carbon dioxide at 110 bar and 40°C. The surface area of the supercritical precursor was 160 m2g-1 and this decreased to 35 m2g-1 after calcination, although there significant reduction of particle size. The new titania support was used to prepare a supported gold catalyst and this was tested for ambient temperature carbon monoxide oxidation. The supercritical catalyst demonstrated notably high activity when compared with catalysts prepared by other nonsupercritical methods. © 2006 Elsevier B.V. All rights reserved.

Item Type:	Article
Status:	Published
Schools:	Chemistry Cardiff Catalysis Institute (CCI)
Subjects:	Q Science > QD Chemistry
Additional Information:	cited By (since 1996) 4
Publisher:	Elsevier BV
ISSN:	01672991
Last Modified:	05 Jan 2023 09:59
URI:	https://orca.cardiff.ac.uk/id/eprint/10264

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