Bicomponent VO2-defects/MWCNT catalyst for hydroxylation of benzene to phenol: Promoter effect of defects on catalytic performance

被引：53
作者：
Song, Shaoqing [1 ]
Jiang, Shujuan [1 ]
Rao, Richuan [2 ]
Yang, Hongxiao [2 ]
Zhang, Aimin [2 ]
机构：
[1] E China Inst Technol, Sch Chem Biol & Mat, Fuzhou 344000, Jiangxi, Peoples R China
[2] Nanjing Univ, Sch Chem & Chem Engn, MOE, Key Lab Mesoscop Chem, Nanjing 210093, Peoples R China
来源：
APPLIED CATALYSIS A-GENERAL | 2011年 / 401卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
Bicomponent catalyst; VO2; Defects; Carbon nanotubes; Hydroxylation of benzene to phenol; HYDROGEN-PEROXIDE; MESOPOROUS SILICA; CARBON NANOTUBES; OXIDATION; CONVERSION; SOLVENT; SURFACE; TS-1;
D O I：
10.1016/j.apcata.2011.05.023
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：
A novel bicomponent catalyst, VO2 supported on multi-walled carbon nanotubes (MWCNTs) with defects as promoter (VO2-defects/MWCNTs) was synthesized for the hydroxylation of benzene to phenol. In the bicomponent system, VO2 nanoparticles with 2-10 nm were prepared by the spontaneous redox between V5+ and defects of MWCNTs. Moreover, defects of MWCNTs were firstly used as promoters for preventing the oxidation of phenol and transferring electrons in the catalysis. Thus, compared with other vanadium catalysts, VO2-defects/MWCNTs show excellent catalytic performance for the hydroxylation of benzene to phenol, which indicates defects as promoter are quite promising for catalyzing the hydroxylation of benzene. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：215 / 219
页数：5
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