Synergetic effect of platinum or palladium on gold catalyst in the selective oxidation of D-sorbitol

Dimitratos, Nikolaos ORCID: https://orcid.org/0000-0002-6620-4335, Porta, F., Prati, L. and Villa, A. 2005. Synergetic effect of platinum or palladium on gold catalyst in the selective oxidation of D-sorbitol. Catalysis Letters 99 (3-4) , pp. 181-185. 10.1007/s10562-005-2114-8

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Abstract

Monometallic Au, Pt and Pd on carbon catalysts show poor activity in the liquid phase oxidation of D-sorbitol to gluconic/gulonic acids. However, by using bimetallic based catalysts (Au–Pt or Au–Pd) a great enhancement in the activity has been observed with respect to all the monometallic catalysts tested probably due to a synergetic effect between Au and Pt or Pd. In fact physical mixture of monometallic catalysts presented poor activity. Bimetallic showed a resistance to poisoning by dioxygen and by reaction products as high as gold monometallic catalyst, but also an improved selectivity toward monooxidation with respect to monometallic.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Research Institutes & Centres > Cardiff Catalysis Institute (CCI) Schools > Chemistry
Subjects:	Q Science > QD Chemistry
Uncontrolled Keywords:	oxidation of polyols; sorbitol oxidation; bimetallic catalyst; gold/palladium; gold/platinum
Publisher:	Kluwer
ISSN:	1011-372X
Last Modified:	25 Oct 2022 08:28
URI:	https://orca.cardiff.ac.uk/id/eprint/53104

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