Journal
CATALYSIS COMMUNICATIONS
Volume 74, Issue -, Pages 115-118Publisher
ELSEVIER
DOI: 10.1016/j.catcom.2015.11.014
Keywords
Oxidation; Carbohydrates; Heterogeneous catalysis; Gold; Microwave chemistry
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Funding
- Tekes - the Finnish Funding Agency for Technology and Innovation [40224/11]
- University of Helsinki Doctoral Programme in Chemistry and Molecular Sciences (CHEMS)
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Base-free oxidation of glucose to gluconic acid with supported gold catalysts was studied using microwave heating. High conversion and selectivity were obtained in a remarkably shortened reaction time; in 10 min gluconic acid was obtained with up to 76% yields with 0.09 mol%Au/Al2O3 and hydrogen peroxide as oxidant. Very high turn-over frequencies over 10,000 h(-1) were measured for the microwave assisted oxidation. Moreover, the catalyst activity remained constant in four consecutive runs, even though minor particle growth was observed. (C) 2015 Published by Elsevier B.V.
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