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Influence of the preparation conditions on the properties of gold catalysts for the oxidation of glucose

Paper ID Volume ID Publish Year Pages File Format Full-Text
48853 46522 2007 8 PDF Available
Title
Influence of the preparation conditions on the properties of gold catalysts for the oxidation of glucose
Abstract

In this work, two deposition–precipitation methods for the preparation of gold catalysts for glucose oxidation were investigated. Thus far, gold colloids immobilized on carbon have been used for catalytic glucose oxidation, but the long-term stability of these systems was not sufficient. To improve the long-term stability we used the deposition–precipitation methods using NaOH (DP NaOH) or urea (DP urea) as precipitation agents as they were described by Haruta and Dekkers, respectively, using alumina as a support material. With these methods, it was possible to prepare highly active and selective catalysts which showed an excellent long-term stability. DP urea was found to be the preferred method, because in contrast to DP NaOH, no losses of gold occurred during the preparation, and it was possible to adjust various gold contents up to 10 wt% Au.

Keywords
Gold catalysts; Glucose oxidation; Deposition–precipitation; Alumina; DP NaOH; DP urea
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Influence of the preparation conditions on the properties of gold catalysts for the oxidation of glucose
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 70, Issues 1–4, 31 January 2007, Pages 653–660
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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