期刊
APPLIED CATALYSIS A-GENERAL
卷 317, 期 2, 页码 204-209出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcata.2006.10.016
关键词
gold catalysts; Au/TiO2; long-term stability; selective oxidation; glucose; gluconic acid; TEM
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 degrees 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. (c) 2006 Published by Elsevier B.V.
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