Fe2O3/SBA-15 catalyst synthesized by chemical vapor infiltration for Friedel-Crafts alkylation reaction

被引:24
作者
Lei, Zhibin [1 ]
Bai, Shiying [1 ]
Dang, Liqin [1 ]
Xia, Haian [2 ]
Xu, Qian [2 ]
Cao, Yindi [1 ]
An, Lizhen [1 ]
Zhao, Mingyi [1 ]
Lo, An-Ya [3 ]
Liu, Shang-Bin [3 ]
机构
[1] Liaoning Normal Univ, Fac Chem & Chem Engn, Inst Chem Functionalized Mat, Dalian 116029, Liaoning, Peoples R China
[2] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
[3] Acad Sinica, Inst Atom & Mol Sci, Taipei 10617, Taiwan
关键词
Fe2O3/SBA-15; Fe/carbon; chemical vapor infiltration; mesoporous carbon; Alkylation reaction; CONTAINING MESOPOROUS MATERIALS; CARBON MOLECULAR-SIEVES; BENZYL-CHLORIDE; IRON-OXIDE; NANOPOROUS CARBON; PORE VOLUME; NANOPARTICLES; NANOTUBES; SILICA; OXIDATION;
D O I
10.1016/j.micromeso.2009.04.014
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Fe/SBA-15/carbon composites were synthesized by chemical vapor infiltration (CVI) method using ferrocene as concurrent iron and carbon precursor. Accordingly, Fe2O3 nanoparticles supported on mesoporous SBA-15 silica or metallic Fe homogeneously embedded in mesoporous carbon were selectively obtained either by oxidizing the carbon component in air or by removing the silica template using an aqueous NaOH solution. The Fe2O3/SBA-15 and Fe/carbon composites so obtained were thoroughly characterized by N-2 adsorption/desorption isotherm measurements, powder X-ray diffraction (XRD), transmission electron microscopy and H-2-temperature programmed reduction (H-2-TPR). The effects of CVI duration time and temperature on their corresponding reduction states and particle dispersion, and consequently on their catalytic performances during benzylation reaction of benzene with benzyl chloride were examined and discussed. (C) 2009 Elsevier Inc. All rights reserved.
引用
收藏
页码:306 / 313
页数:8
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