1. An investigation into bimetallic catalysts for base free oxidation of cellobiose and glucose
- Author
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Sarwat Iqbal, Graham J. Hutchings, Peter J. Miedziak, David J. Morgan, Junwei Wang, Xi Liu, Daniel R. Jones, and Yueling Cao
- Subjects
inorganic chemicals ,010405 organic chemistry ,Renewable Energy, Sustainability and the Environment ,Hydrogen bond ,General Chemical Engineering ,Organic Chemistry ,Cellobiose ,010402 general chemistry ,Heterogeneous catalysis ,01 natural sciences ,Pollution ,0104 chemical sciences ,Catalysis ,Inorganic Chemistry ,chemistry.chemical_compound ,Fuel Technology ,chemistry ,Yield (chemistry) ,Gluconic acid ,Organic chemistry ,Cellulose ,Waste Management and Disposal ,Bimetallic strip ,Biotechnology - 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.
- Published
- 2017