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: https://orcid.org/0000-0002-6571-5731, Liu, Xi, Wang, Junwei and Hutchings, Graham ORCID: https://orcid.org/0000-0001-8885-1560 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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Abstract

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) Chemistry
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:	06 Nov 2024 18:45
URI:	https://orca.cardiff.ac.uk/id/eprint/99481

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