Optimization of reaction conditions for cyclohexene epoxidation with H2O2 over nanocrystalline mesoporous TiO2 loaded with RuO2

被引：14
作者：
Sreethawong, T
Yamada, Y
Kobayashi, T
Yoshikawa, S
机构：
[1] Natl Inst Adv Ind Sci & Technol, AIST, Res Inst Ubiquitous Energy Devices, Osaka 5638577, Japan
[2] Kyoto Univ, Inst Adv Energy, Kyoto 6110011, Japan
来源：
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2006年 / 248卷 / 1-2期
关键词：
mesoporosity; RuO2/TiO2; epoxidation; cyclohexene; H2O2;
D O I：
10.1016/j.molcata.2005.12.034
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：
Cyclohexene epoxidation with H2O2 was performed over RuO2/TiO2 under various conditions. The support TiO2 prepared by surfactant-assisted templating sol-gel method is nanocrystalline and has mesoporous structure with narrow monomodal pore size distribution. An activator of 1 mol% RuO2 was loaded onto the synthesized TiO2 by incipient wetness impregnation method. The resultant catalyst was characterized by XRD, N-2 adsorption-desorption and TEM analyses. Reaction conditions in the epoxidation reaction, namely reaction temperature, amount of catalyst and concentration of H2O2 in terms of cyclohexene/H2O2 ratio, were systematically optimized to obtain maximum selectivity to cyclohexene oxide. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：226 / 232
页数：7
相关论文
共 35 条
[1]   Role of synthesis method and particle size of nanostructured TiO2 on its photoactivity [J].
Almquist, CB ;
Biswas, P .
JOURNAL OF CATALYSIS, 2002, 212 (02) :145-156
[2]  
[Anonymous], 2001, FINE CHEM HETEROGENE
[3]   SYNTHESIS OF HEXAGONALLY PACKED MESOPOROUS TIO2 BY A MODIFIED SOL-GEL METHOD [J].
ANTONELLI, DM ;
YING, JY .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1995, 34 (18) :2014-2017
[4]   Polymer supported Ru(III) complexes, synthesis and catalytic activity [J].
Antony, R ;
Tembe, GL ;
Ravindranathan, M ;
Ram, RN .
POLYMER, 1998, 39 (18) :4327-4333
[5]   The visible light induced photocatalytic activity of tungsten trioxide powders [J].
Bamwenda, GR ;
Arakawa, H .
APPLIED CATALYSIS A-GENERAL, 2001, 210 (1-2) :181-191
[6]  
*BASF CORP, 1997, TECHN DAT SHEET
[7]   Ruthenium(II) complexes with 2,6-pyridyl-diimine ligands:: synthesis, characterization and catalytic activity in epoxidation reactions [J].
Çetinkaya, B ;
Çetinkaya, E ;
Brookhart, M ;
White, PS .
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 1999, 142 (02) :101-112
[8]   Synthesis and catalytic activity of a novel ruthenium(III) complex containing a sugar-based ligand [J].
Chatterjee, D ;
Basak, S ;
Mitra, A ;
Sengupta, A ;
Le Bras, J ;
Muzart, J .
CATALYSIS COMMUNICATIONS, 2005, 6 (07) :459-461
[9]   Spectroscopy, electrochemistry and catalytic properties of rutheniumII complexes containing the tetradentate Schiff base ligand N,N′-bis(7-methyl-2-pyridylmethylene)-1,3-diiminopropane [J].
de Souza, VR ;
Nunes, GS ;
Rocha, RC ;
Toma, HE .
INORGANICA CHIMICA ACTA, 2003, 348 :50-56
[10]   Zeolite-supported ruthenium oxide catalysts for photochemical reduction of water to hydrogen [J].
Dutta, PK ;
Vaidyalingam, AS .
MICROPOROUS AND MESOPOROUS MATERIALS, 2003, 62 (1-2) :107-120
1234