Synthesis of Diphenylmethane using Iron-containing Mesoporous Catalysts Prepared by Sol-gel Method

Home > Archive>Volume 47, Issue S2, 2018 >282-286

Synthesis of Diphenylmethane using Iron-containing Mesoporous Catalysts Prepared by Sol-gel Method
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Affiliation:College of Materials Science and Engineering,China Jiliang University,College of Materials Science and Engineering,China Jiliang University,College of Materials Science and Engineering,China Jiliang University,College of Materials Science and Engineering,China Jiliang University,College of Materials Science and Engineering,China Jiliang University,College of Materials Science and Engineering,China Jiliang University,College of Materials Science and Engineering,China Jiliang University,Department of Chemical,Zhejiang University,College of Materials Science and Engineering,China Jiliang University,Department of Chemical,Zhejiang University
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Abstract:

Using sol-gel method, the iron-containing nanocomposites with the ferric citrate as iron raw were synthesized. The clear sols were gelated at room temperature and then treated at 60 _oC in vacuum to get dry gels which were characterized by thermogravimetricSanalysis (TG). Finally, mesoporous Fe₂O₃/SiO₂ nanoparticles were obtained by the calciner at 400 _oC for 3h. The structural properties of synthesized particles were investigated by X-ray diffraction (XRD), N₂adsorption-desorptionStechnique, transmission electron microscopy (TEM), Fourier-transform IR spectroscopy (FT-IR), and Temperature programmed reduction (H₂-TPR), which revealed that the iron active centers were successfully incorporated into the silica framework with spherical particles size about 50 nm and a average pore diameter of 30-45 ?. The catalytic activity of nanocatalysts had been tested in the synthesis diphenylmethane by Friedel-Crafts alkylation reaction. It found that the catalysts exhibited an excellent activity with 100% conversion of benzyl chloride and relatively higher selectivity to diphenylmethane, and could be reusedSmultiple times.

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[WU Pan-pan, Wang Qing, Tang Hui-jie, Xu Ling-liang, JIN Hong-xiao, GE Hong-liang, WANG Xin-qing, LOU Hui, JIN Ding-feng, Guo Hui-jun. Synthesis of Diphenylmethane using Iron-containing Mesoporous Catalysts Prepared by Sol-gel Method[J]. Rare Metal Materials and Engineering,2018,47(S2):282~286.]
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Received:December 01,2017
Revised:August 22,2018
Adopted:February 01,2018
Online: November 01,2018
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