Cyclohexane Oxidation Over Size-Uniform Au Nanoparticles (SBA-15 hosted) in a Continuously Stirred Tank Reactor Under Mild Conditions

被引:33
作者
Li, Li [1 ]
Jin, Chen [1 ]
Wang, Xiaochen [1 ]
Ji, Weijie [1 ]
Pan, Yi [1 ]
van der Knaap, Theo [2 ]
van der Stoel, Roland [2 ]
Au, C. T. [3 ]
机构
[1] Nanjing Univ, Sch Chem & Chem Engn, Dept Chem, MOE,Key Lab Mesoscop Chem, Nanjing 210093, Peoples R China
[2] DSM Fibre Intermediates, NL-6130 AA Sittard, Netherlands
[3] Hong Kong Baptist Univ, Dept Chem, Kowloon, Hong Kong, Peoples R China
关键词
Mesoporous material; Gold; Nanostructure; Oxidation; Cyclohexane; HIGHLY EFFICIENT OXIDATION; REDOX MOLECULAR-SIEVES; GOLD NANOPARTICLES; SELECTIVE OXIDATION; MESOPOROUS SILICA; AEROBIC OXIDATION; CATALYST; OXYGEN; MECHANISM; AIR;
D O I
10.1007/s10562-009-9853-x
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
Cyclohexane oxidation was operated in a continuously stirred tank reactor at system pressures of 0.6-1.0 MPa under an air-like O-2/N-2 atmosphere (rather than pure O-2). Catalytic performance was investigated over Au nanoparticles (size: 3-8 nm) hosted by SBA-15 as well as Au particles (> 60 nm) deposited on MCM-41, and high turnover frequencies of desired products were detected over the former. Based on intrinsic activities of representative catalysts, we derived a size-sensitivity feature of cyclohexane oxidation over Au particles.
引用
收藏
页码:303 / 311
页数:9
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