介孔材料在烯烃环氧化中的催化应用  

Catalytic Applications of the Mesoporous Materials in Epoxidation of Olefins

作　　者：李学峰[1] 高焕新[2] 陈庆龄[1] 

机构地区：[1]华东理工大学化学与制药学院,上海200237 [2]上海石油化工研究院,上海201208

出　　处：《化学进展》2006年第7期849-853,共5页Progress in Chemistry

摘　　要：本文综述了介孔材料在烯烃环氧化反应中的应用,包括材料的制备方法、催化性能以及活性中心的表征。通过硅钛原子的合理匹配可以达到四配位钛的高度分散,从而提高催化活性。硅烷化处理增加材料表面的疏水性,能够大幅度提高活性和选择性。通过多种谱学和分子模拟等手段可表征骨架钛及其配位情况。The catalytic applications of the mesoporous materials in epoxidation of olefins are summarized, including the preparation methods and modification of the materials, catalytic performance and characterization of activesites. High dispersion of tetra-coordinated titanium is achieved by means of adjusting optimal combination of titanium and silicon atoms, hence the activity of the materials can be improved. On the other hand, the activity and selectivity can also be greatly promoted by silylation due to the enhancement of the surface hydrophobicity of the materials. The framework titanium atoms and their coordination state can be characterized by spectroscopic technologies and the molecular simulation.

关 键 词：介孔材料 烯烃环氧化 催化 

分 类 号：O643[理学—物理化学] O612.4[理学—化学]