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

共 57 条

[1]

Anderson J.R, 1975, STRUCURE METALLIC CA

[2] Role of Preparation Techniques in the Activity of Au/TiO2 Nanostructures Stabilised on SiO2: CO and Preferential CO Oxidation [J].

Beck, A. ;

Horvath, A. ;

Stefler, G. ;

Scurrell, M. S. ;

Guczi, L. .

TOPICS IN CATALYSIS, 2009, 52 (6-7) :912-919

[3] Selectivity control in the oxidation of phenylethane-1,2-diol with gold catalyst [J].

Biella, S ;

Prati, L ;

Rossi, M .

INORGANICA CHIMICA ACTA, 2003, 349 :253-257

[4] FTIR, UV-Vis, and HRTEM study of Au/ZrO2 catalyst:: Reduced reactivity in the CO-O2 reaction of electron-deficient gold sites present on the used samples [J].

Boccuzzi, F ;

Cerrato, G ;

Pinna, F ;

Strukul, G .

JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (30) :5733-5736

[5]

Cai Y., 2011, ADV CHEM ENG SCI, V1, P15

[6] Solvent-free oxidation of cyclohexene over catalysts with molecular oxygen [J].

Cai, Zhen-Yu ;

Zhu, Ming-Qiao ;

Chen, Jun ;

Shen, Yang-Yi ;

Zhao, Jing ;

Tang, Yue ;

Chen, Xin-Zhi .

CATALYSIS COMMUNICATIONS, 2010, 12 (03) :197-201

[7] Selective epoxidation of styrene to styrene oxide by TBHP using simple transition metal oxides (NiO, CoO or MoO3) as highly active environmentally-friendly catalyst [J].

Choudhary, Vasant R. ;

Jha, Rani ;

Jana, Prabhas .

CATALYSIS COMMUNICATIONS, 2008, 10 (02) :205-207

[8] Solvent-free selective oxidation of primary alcohols-to-aldehydes and aldehydes-to-carboxylic acids by molecular oxygen over MgO-supported nano-gold catalyst [J].

Choudhary, Vasant R. ;

Dumbre, Deepa K. .

CATALYSIS COMMUNICATIONS, 2011, 13 (01) :82-86

[9] Epoxidation of styrene by anhydrous hydrogen peroxide over boehmite and alumina catalysts with continuous removal of the reaction water [J].

Choudhary, VR ;

Patil, NS ;

Chaudhari, NK ;

Bhargava, SK .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2005, 227 (1-2) :217-222

[10] Grafting of titanium alkoxides on high-surface SiO2 support:: An advanced technique for the preparation of nanostructured TiO2/SiO2 catalysts [J].

Cozzolino, M. ;

Di Serio, M. ;

Tesser, R. ;

Santacesaria, E. .

APPLIED CATALYSIS A-GENERAL, 2007, 325 (02) :256-262

← 1 2 3 4 5 6 →