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

Dimitratos, Nikolaos, 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: Cardiff Catalysis Institute (CCI)
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: 04 Jun 2017 05:44
URI: http://orca.cf.ac.uk/id/eprint/53104

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