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Gold clusters supported on alkaline treated TS-1 for highly efficient propene epoxidation with O2 and H2

Paper ID Volume ID Publish Year Pages File Format Full-Text
47500 46473 2010 9 PDF Available
Title
Gold clusters supported on alkaline treated TS-1 for highly efficient propene epoxidation with O2 and H2
Abstract

Gold could be deposited as clusters smaller than 2.0 nm in diameter on TS-1 by solid grinding (SG) of the support with dimethyl Au(III) acetylacetonate after TS-1 was pretreated in aqueous solution of alkaline metal hydroxides. While in C3H6 epoxidation with O2 and H2 mixture Au nanoparticles larger than 2.0 nm deposited on TS-1 without alkaline treatment gave a very low PO formation rate of 11 gPO kgcat.−1 h−1, Au clusters on alkaline treated TS-1 presented a greatly enhanced rate as high as 137 gPO kgcat.−1 h−1, which was comparable to the best data reported so far. In addition, very high H2 efficiency reaching 47% could be obtained by gold clusters on alkaline treated TS-1.

Keywords
Propene epoxidation; O2/H2 mixture; TS-1; Alkaline treatment; Gold cluster; H2 efficiency
First Page Preview
Gold clusters supported on alkaline treated TS-1 for highly efficient propene epoxidation with O2 and H2
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 95, Issues 3–4, 6 April 2010, Pages 430–438
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis