高等学校化学学报

高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (9): 1451.

• 论文 • 上一篇    下一篇

Cu修饰的MCM-41的合成、表征及对芳烃羟化反应催化作用的研究

孙建敏, 孟祥举, 王润伟, 林文勇, 林凯峰, 庞文琴, 蒋大振, 徐如人, 肖丰收   

  1. 吉林大学无机合成与材料制备化学开放实验室、化学系, 长春 130023
  • 收稿日期:1999-11-25 出版日期:2000-09-24 发布日期:2000-09-24
  • 通讯作者: 肖丰收(1963年出生),男,博士,教授,博士生导师,从事催化材料与分子筛研究.E-mail:fsxiao@mail.jlu.edu.cn
  • 基金资助:

    国家自然科学基金杰出青年基金(批准号:29825108);教育部跨世纪人才计划基金

Preparation, Characterization of Cu-MCM-41 and Its Catalysis for Hydroxylation of Aromatic Compounds

SUN Jian-Min, MENG Xiang-Ju, WANG Run-Wei, LIN Wen-Yong, LIN Kai-Feng, PANG Wen-Qin, JIANG Da-Zhen, XU Ru-Ren, XIAO Feng-Shou   

  1. The Key Laboratoryof Inorganic Syn thesisand Prepa rative Chemistry, Depa rtment of Chemistry, Jilin University, Changchun 130023, China
  • Received:1999-11-25 Online:2000-09-24 Published:2000-09-24

PDF (PC)

被引次数

116

摘要： 利用MCM-41形成过程中协同自组装的特点,在合成过程中引入Cu(NH3)42+,制备出过渡金属表面修饰的纯硅介孔分子筛Cu-MCM-41,采用XRD,ICP,ESR,N2吸附等手段确定Cu处于MCM-41的表面,取代了端羟基中氢的位置,与骨架桥氧和硅羟基中的氧配位.利用苯酚羟化反应为探针,考察了Cu-MCM-41的催化活性.结果表明,Cu-MCM-41具有很高的苯酚羟化活性,与TS-1分子筛的催化效果相当,对萘酚的羟化活性也较高.

关键词: Cu-MCM-41, 介孔分子筛, H2O2, 苯酚羟化, 萘酚羟化

Abstract: Pure silica MCM-41 with surface grafted Cu2+ ions(donated as CuMCM-41) was synthesized via a novel co-assemble route; XRD, ESRand ion-exchange studies revealed that the copper was located on the surface of the pure silica MCM-41 and coordinated with bridged oxygen in the framework. In addition, we also studied its catalysis behavior for hydroxylation of phenol and naphthol with hydrogen peroxide as the oxygen donor. The experimental results show that Cu-MCM-41 possesses an excellent catalytic activity compared with other catalysts Cu-AlMCM-41 and CuO-MCM-41.

Key words: Cu-MCM-41, Mesoporous molecular sieves, Phenol hydroxylation, Naphthol hydroxylation, Hydrogen peroxide

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