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The effect of polymer addition on base catalysed glycerol oxidation using gold and gold-palladium bimetallic catalysts

Abis, Laura, Dimitritatos, Nikolaos, Meenakshisundaram, Sankar, Freakley, Simon J. and Hutchings, Graham J. 2020. The effect of polymer addition on base catalysed glycerol oxidation using gold and gold-palladium bimetallic catalysts. Topics in Catalysis 63 , pp. 394-402. 10.1007/s11244-019-01212-y

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Abstract

The oxidation of glycerol represents both a viable route to catalytic upgrading of biomass and has become a model reaction for catalytic polyol oxidation. Gold and gold–palladium nanoparticle catalysts prepared by colloidal methods involving polymer additives have been extensively studied. However, the effect of residual polymer at the catalyst surface on reaction pathways has not been decoupled from particle size effects. We show that when using catalysts prepared without polymer stabilisers the addition of either polyvinyl alcohol or polyvinylpyrrolidone to the reaction changes the reaction rate and results in a change in reaction selectivity. We conclude that the polymer additive has a significant effect on the reaction pathway and that these systems should be considered as a metal surface–polymer interface catalytic systems and properties should not be rationalised solely based on nanoparticle size.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Cardiff Catalysis Institute (CCI)
Publisher: Springer Verlag
ISSN: 1022-5528
Funders: MAXNET
Date of First Compliant Deposit: 6 January 2020
Date of Acceptance: 7 December 2019
Last Modified: 07 Feb 2021 16:34
URI: http://orca.cardiff.ac.uk/id/eprint/128234

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