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Selective suppression of disproportionation reaction in solvent-less benzyl alcohol oxidation catalysed by supported Au-Pd nanoparticles

Cao, Enhong, Meenakshisundaram, Sankar, Nowicka, Ewa, He, Qian, Morad, Moataz, Miedziak, Peter John, Taylor, Stuart Hamilton, Knight, David William, Bethell, Donald, Kiely, Christopher John, Gavriilidis, Asterios and Hutchings, Graham John 2013. Selective suppression of disproportionation reaction in solvent-less benzyl alcohol oxidation catalysed by supported Au-Pd nanoparticles. Catalysis Today 203 , pp. 146-152. 10.1016/j.cattod.2012.05.023

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Abstract

Disproportionation of benzyl alcohol has been identified as the source of toluene formation in the solvent free oxidation of benzyl alcohol using supported gold palladium catalysts. There is a slight increase in the disproportionation reaction, and hence the toluene selectivity, when this reaction is performed in a continuous mode using a micro-packed bed reactor when compared to the same reaction performed in a conventional glass stirred batch reactor. Oxidation and disproportionation reactions respond slightly differently to the changes in reaction parameters, like oxygen concentration and pressure, when a micro packed bed reactor was used instead of a conventional glass stirred reactor. When MgO supported gold–palladium catalysts were used for this reaction, the toluene selectivity reduced substantially at the cost of conversion.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Cardiff Catalysis Institute (CCI)
Chemistry
Subjects: Q Science > QD Chemistry
Uncontrolled Keywords: Gold palladium catalysts; Alcohol oxidation; Benzyl alcohol oxidation
Publisher: Elsevier
ISSN: 0920-5861
Funders: EPSRC
Last Modified: 10 Oct 2019 03:26
URI: http://orca-mwe.cf.ac.uk/id/eprint/38897

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