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Long-term stability of a 0.45% Au/TiO2 catalyst in the selective oxidation of glucose at optimised reaction conditions

Paper ID Volume ID Publish Year Pages File Format Full-Text
44124 46004 2007 6 PDF Available
Title
Long-term stability of a 0.45% Au/TiO2 catalyst in the selective oxidation of glucose at optimised reaction conditions
Abstract

The use of gold catalysts in the oxidation of glucose resulted in high selectivities (>95%) with respect to gluconic acid and very high catalytic activities were obtained. A catalyst with 0.45 wt.% Au supported on titania showed the best performance. The optimisation of the reaction conditions revealed that best results were obtained at a reaction temperature in a range of 40–60 °C and a pH value of 9. The Au/TiO2 catalyst can be re-used at least 17 times without loss of activity or change of the gold particle size.

Graphical abstractThe use of gold catalysts in the oxidation of glucose resulted in high selectivities (>95%) and very high activities. The optimisation of the reaction conditions revealed that best results were obtained at 40–60 °C and a pH value of 9. A 0.45% Au/TiO2 catalyst showed the best performance. It can be re-used at least 17 times without loss of activity or a change in gold particle size. Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Gold catalysts; Au/TiO2; Long-term stability; Selective oxidation; Glucose; Gluconic acid; TEM
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Long-term stability of a 0.45% Au/TiO2 catalyst in the selective oxidation of glucose at optimised reaction conditions
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 317, Issue 2, 7 February 2007, Pages 204–209
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
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