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An investigation into bimetallic catalysts for base free oxidation of cellobiose and glucose

Cao, Yueling, Iqbal, Sarwat, Miedziak, Peter John, Jones, Daniel R., Morgan, David John ORCID:, Liu, Xi, Wang, Junwei and Hutchings, Graham ORCID: 2017. An investigation into bimetallic catalysts for base free oxidation of cellobiose and glucose. Journal of Chemical Technology and Biotechnology 92 (9) , pp. 2246-2253. 10.1002/jctb.5287

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BACKGROUND The selective conversion of cellulose to gluconic acid under mild conditions is challenging as it has abundant intra-and inter-molecular hydrogen bonds that protect the β-1,4-glycosidic bonds and make it intrinsically recalcitrant to deploymerize. RESULTS Au-Pd/TiO2 and Au-Pt/TiO2 catalysts prepared by sol immobilization method without pre-treatment are active and selective for the oxidation of glucose and cellobiose to gluconic acid under base-free conditions. Important preparation parameters are the pre-treatment of the catalyst and the metal ratio. CONCLUSION The optimized catalyst provided a good yield of gluconic acid from cellobiose and has opened up a new catalyst system for cellobiose conversion in terms of a heterogeneous catalyst.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Cardiff Catalysis Institute (CCI)
Subjects: Q Science > QD Chemistry
Uncontrolled Keywords: Glucose; Cellobiose; Au-Pd; Au-Pt; Base-free condition; Oxidation; Gluconic acid
Publisher: Wiley
ISSN: 0268-2575
Funders: China Scholarship Council
Date of First Compliant Deposit: 29 March 2017
Date of Acceptance: 21 March 2017
Last Modified: 15 Apr 2024 18:10

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