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Solvent-free oxidation of benzyl alcohol using titania-supported gold-palladium catalysts: Effect of Au-Pd ratio on catalytic performance

Enache, Dan Ion, Barker, D., Edwards, Jennifer Kelly, Taylor, Stuart Hamilton, Knight, David William, Carley, Albert Frederick and Hutchings, Graham John 2007. Solvent-free oxidation of benzyl alcohol using titania-supported gold-palladium catalysts: Effect of Au-Pd ratio on catalytic performance. Catalysis Today 122 (3-4) , pp. 407-411. 10.1016/j.cattod.2007.01.003

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Abstract

The oxidation of benzyl alcohol with molecular oxygen under solvent-free conditions has been investigated using a range of titania-supported Au-Pd alloy catalysts to examine the effect of the Au-Pd ratio on the conversion and selectivity. The catalysts have been compared at high reaction temperature (160 °C) as well as at 100 °C, to determine the effect on selectivity since at lower reaction temperature the range of by-products that are formed are limited. Under these conditions the 2.5 wt. Au-2.5 wt. Pd/TiO2 was found to be the most active catalyst, whereas the Au/TiO2 catalyst demonstrated the highest selectivity to benzaldehyde. Toluene, formed via either a hydrogen transfer process or an oxygen transfer process, was observed as a major by-product under these forcing conditions. © 2007 Elsevier B.V. All rights reserved.

Item Type: Article
Status: Published
Schools: Chemistry
Cardiff Catalysis Institute (CCI)
Subjects: Q Science > QD Chemistry
Uncontrolled Keywords: Catalyst activity; Catalyst selectivity; Catalyst supports; Gold compounds; Molecular oxygen; Oxidation; Palladium compounds, Benzyl alcohol oxidation; High reaction temperatures; Solvent free oxidation; Titania supported gold palladium catalysts, Alcohols
Additional Information: cited By (since 1996) 14
Publisher: Elsevier BV
ISSN: 09205861
Last Modified: 04 Jun 2017 03:01
URI: http://orca-mwe.cf.ac.uk/id/eprint/10263

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