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Base-free glucose oxidation using air with supported gold catalysts

Miedziak, Peter John, Alshammari, Hamed, Kondrat, Simon A., Clarke, Tomos J. ORCID:, Davies, Thomas, Morad, Moataz, Morgan, David John ORCID:, Willock, David James ORCID:, Knight, David William, Taylor, Stuart H. ORCID: and Hutchings, Graham John ORCID: 2014. Base-free glucose oxidation using air with supported gold catalysts. Green Chemistry 16 (6) , pp. 3132-3141. 10.1039/c4gc00087k

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We report the selective oxidation of glucose to gluconic acid under mild conditions and show that if a basic support is used then the reaction can be carried out without the addition of sacrificial base or pH control. The use of sol-immobilisation prepared catalysts supported on magnesium oxide facilitates the use of ambient air as an oxidant source. These mild conditions resulted in an excellent selectivity towards gluconic acid. Different heat treatments result in an improvement in the activity of the catalyst, these improvements are discussed in terms of XRD, DRIFTD and TEM analysis of the catalysts, despite significant particle growth and phase segregation occurring during the thermal treatments.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Cardiff Catalysis Institute (CCI)
Subjects: Q Science > QD Chemistry
Publisher: Royal Society of Chemistry
ISSN: 1463-9262
Date of First Compliant Deposit: 30 March 2016
Date of Acceptance: 8 April 2014
Last Modified: 11 Oct 2023 21:09

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