高等学校化学学报

高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (6): 1171.

• 研究快报 • 上一篇    下一篇

具有强酸位的六方和立方介孔硅铝分子筛合成及催化活性比较

李工1, 阚秋斌1, 吴通好1, 侯长民1, 黄家辉1, 吴淑杰1, 李灿2   

  1. 1. 吉林大学化学学院, 长春 130023;
    2. 中国科学院大连化学物理研究所催化基础国家重点实验室, 大连 116023
  • 收稿日期:2001-12-25 出版日期:2002-06-24 发布日期:2002-06-24
  • 通讯作者: 阚秋斌(1962年出生),男,博士,教授,从事多相催化与分子筛合成研究.E-mail:qkan@mai.ljlu.edu.cn E-mail:qkan@mai.ljlu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:29973001)资助

Synthesis and Catalytic Performances of Mesoporous Aluminosilicates of Cubic and Hexagonal Structure with Stronger Acid Sites

LI Gong1, KAN Qiu-Bin1, WU Tong-Hao1, HOU Chang-Min1, HUANG Jia-Hui1, WU Shu-Jie1, LI Can2   

  1. 1. College of Chemistry, Jilin University, Changchun 130023,China;
    2. State Key Laboratory of Catalysis, Dalian Institute of Chmical Physics, The Chinese Academy of Sciences, Dalian 116023, China
  • Received:2001-12-25 Online:2002-06-24 Published:2002-06-24

PDF (PC)

被引次数

46

关键词: 介孔材料, 立方和六方介孔结构, 酸性, 烷基化

Abstract: Mesoporous aluminosilicates with cubic and hexagonal structure have been synthesized by structure units of β-zeolite in a two step crystallization process and characterized by XRD, IR, N2 physical adsorption and desorption, 27Al MAS NMRand NH3 TPDtechniques. The results show that MB48(25) and MB41(25) were similar to MCM 48 and MCM-41 on the long range structure respectively and MB48 with a cubic structure can be synthesized under the condition of a lower n (CTMAB)/ n (SiO2) ratio. HMB48(25) and HMB41(25) exhibit a stronger acidic strength than conventional HMCM-41. The catalytic activity of HMB48(25) was the highest for cumene cracking and alkylation of 2,4-tert-butylphenol with tert-butylalcohol.

Key words: Mesoporous materials, Cubic and hexagonal structure, Acidity, Alkylation

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