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

Cao, Enhong, Meenakshisundaram, Sankar ORCID: https://orcid.org/0000-0002-7105-0203, Nowicka, Ewa ORCID: https://orcid.org/0000-0001-7449-2720, He, Qian ORCID: https://orcid.org/0000-0003-4891-3581, Morad, Moataz, Miedziak, Peter John, Taylor, Stuart H. ORCID: https://orcid.org/0000-0002-1933-4874, Knight, David William, Bethell, Donald, Kiely, Christopher John ORCID: https://orcid.org/0000-0001-5412-0970, Gavriilidis, Asterios and Hutchings, Graham John ORCID: https://orcid.org/0000-0001-8885-1560 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:	07 Nov 2024 22:20
URI:	https://orca.cardiff.ac.uk/id/eprint/38897

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