The Effect of Polymer Addition on Base Catalysed Glycerol Oxidation Using Gold and Gold–Palladium Bimetallic Catalysts

Laura Abis, Nikolaos Dimitritatos, Meenakshisundaram Sankar, Simon J. Freakley, Graham J. Hutchings

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

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. Graphic Abstract: [Figure not available: see fulltext.].

Original languageEnglish
JournalTopics in Catalysis
DOIs
Publication statusPublished - 17 Dec 2019

Keywords

  • Colloidal synthesis
  • Glycerol oxidation
  • Gold
  • Palladium
  • Polymer

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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