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作者:

Bai, Shiyang (Bai, Shiyang.) | Hu, Xintao (Hu, Xintao.) | Sun, Jihong (Sun, Jihong.) (学者:孙继红) | Ren, Bo (Ren, Bo.)

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摘要:

Ti/BMM (bimodal mesoporous silica) catalysts have been prepared via a self-assembly route combined with a ship-in-a-bottle technique. Four different methods were carried out to investigate the effects of adding ionic liquid [spmim][Cl-] (1-methyl-3-(3-trimethoxysilane) propylimidazole chloride) and triethanolamine (TEAOH) or triethylamine (TEA) to the coordination environment of the titanium species in the mesopores. The structural characteristics and textural properties of resultant samples were characterized by XRD, FT-IR spectroscopy, N-2 adsorption-desorption isotherms, TGA, and UV-Vis spectroscopy. The results showed that the bimodal mesoporous structure of Ti/BMMs could be preserved after grafting Ti species via four preparation methods. On the other hand, the presence of [spmim][Cl-] and TEAOH or TEA could not only prevent titanium species existing on the mesoporous surface from aggregating, but also promote loading of tetrahedrally-coordinated titanium species with a high dispersion. Finally, their catalytic activities in the epoxidation of cyclohexene preliminarily indicated that the influence of Ti loading methods on the conversion of cyclohexene was remarkable.

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作者机构:

  • [ 1 ] [Bai, Shiyang]Beijing Univ Technol, Dept Chem & Chem Engn, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Hu, Xintao]Beijing Univ Technol, Dept Chem & Chem Engn, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Sun, Jihong]Beijing Univ Technol, Dept Chem & Chem Engn, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Ren, Bo]Beijing Univ Technol, Dept Chem & Chem Engn, Coll Environm & Energy Engn, Beijing 100124, Peoples R China

通讯作者信息:

  • 孙继红

    [Sun, Jihong]Beijing Univ Technol, Dept Chem & Chem Engn, Coll Environm & Energy Engn, 100 PingLeYuan, Beijing 100124, Peoples R China

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来源 :

NEW JOURNAL OF CHEMISTRY

ISSN: 1144-0546

年份: 2014

期: 5

卷: 38

页码: 2128-2134

3 . 3 0 0

JCR@2022

ESI学科: CHEMISTRY;

ESI高被引阀值:195

JCR分区:2

中科院分区:3

被引次数:

WoS核心集被引频次: 8

SCOPUS被引频次: 8

ESI高被引论文在榜: 0 展开所有

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