Influence of nanoparticles oxidation state in gold based catalysts on the product selectivity in liquid phase oxidation of cyclohexene

被引：42

作者：

Ameur, N. ^{[1
]}

Bedrane, S. ^{[1
]}

Bachir, R. ^{[1
]}

Choukchou-Braham, A. ^{[1
]}

机构：

[1] Univ Tlemcen, Lab Catalysis & Synth Organ Chem, Tilimsen 13000, Algeria

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2013年 / 374卷

关键词：

Gold; Nanoparticles; Oxidation; Cyclohexene; Selectivity; T-BUTYL HYDROPEROXIDE; SOLVENT-FREE OXIDATION; CO OXIDATION; EPOXIDATION; AU/TIO2; STYRENE; ALCOHOL; TITANIA; SIZE; GOLD/TITANIA;

D O I：

10.1016/j.molcata.2013.03.008

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Supported gold catalysts Au/TiO2 and Au/ZrO2 were prepared and used for oxidation of cyclohexene with TBHP. These catalysts were characterized by ICP, TEM and diffuse-reflectance UV-vis. The catalytic tests were carried out in liquid phase, at 80 degrees C and at atmospheric pressure. The effects of support and thermal treatment (oxidation state of Au nanoparticles) on catalytic performance were studied. Gold in the catalysts that have been dried is deposited as Au delta+. These catalysts have a high selectivity towards alkene oxides, 81% of 2-cyclohexene-1-ol for Au/TiO2 and 85% of 2-cyclohexene-1-one for Au/ZrO2. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：1 / 6

页数：6

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