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Structure-reactivity correlations in the selective aerobic oxidation of cinnamyl alcohol: in situ XAFS

Lee, A.F. and Wilson, K. (2004) Structure-reactivity correlations in the selective aerobic oxidation of cinnamyl alcohol: in situ XAFS. Green Chemistry, 6 (2). pp. 37-42. ISSN 1463-9262

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Abstract

The structural evolution of a Pd/C catalyst during the liquid phase selective aerobic oxidation of cinnamyl alcohol has been followed by in situ XAFS and XPS. The fresh catalyst comprised highly dispersed, heavily oxidised Pd particles. Cinnamyl alcohol oxidation resulted in the rapid reduction of surface palladium oxide and a small degree of concomitant particle growth. These structural changes coincided with a large drop in catalytic activity. Prereduced Pd/C exhibited a significantly lower initial oxidation rate demonstrating the importance of surface metal oxide in effecting catalytic oxidation. Use of a Pd black model system confirmed that the oxidemetal transformation was the cause, and not result, of catalyst deactivation.

Item Type: Article
Academic Units: The University of York > Chemistry (York)
Depositing User: York RAE Import
Date Deposited: 28 May 2009 15:44
Last Modified: 28 May 2009 15:44
Published Version: http://dx.doi.org/10.1039/b310505a
Status: Published
Publisher: Royal Society of Chemistry
Identification Number: 10.1039/b310505a
URI: http://eprints.whiterose.ac.uk/id/eprint/6131

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