介孔钛硅新催化材料  

New Mesoporous Titanosilicate Catalytic Materials

作　　者：李杰[1] 周春晖[1] 杜泽学[2] 闵恩泽[2] 葛忠华[1] 李小年[1] 

机构地区：[1]浙江工业大学化工与材料学院,杭州310032 [2]石油化工科学研究院,北京100083

出　　处：《化学进展》2007年第4期444-455,共12页Progress in Chemistry

基　　金：国家自然科学基金项目(No.20541002);浙江省自然科学基金项目(No.Y405064);中国石油化工股份有限公司科技项目(No.X504034)资助

摘　　要：本文综述了介孔钛硅新催化材料的制备方法,归纳评述了各类介孔钛硅材料的制备技术和相应产物的结构特点;介绍了表征介孔钛硅材料孔结构和钛活性位的重要技术手段和特征,概括了含钛介孔材料在有机物液相催化选择氧化方面的应用,讨论了提高钛位的催化活性、结构稳定性、疏水性、钛硅比等的技术方法;提出了介孔钛硅材料研究存在的问题并展望了将来的研究方向。The preparation strategies of Ti-containing silica mesoporous materials, such as direct synthesis and post- synthesis, are reviewed. The features of synthetic techniques and related structure of Ti-containing mesoporous materials are remarked. The important techniques often used to characterize the structure and titanium active sites of Ti-containing mesoporous materials are introduced. The catalytic performances of Ti-containing mesoporous materials used as catalysts for liquid phase selectively catalytic oxidation of organic substrates are summarized. The methods of modification of Ti- containing mesoporous materials aiming at improving the titanium activity, the structure stability, the hydrophobicity and the value of Ti/Si are discussed. The existing problems and suggestions for further research are presented.

关 键 词：介孔材料 钛硅 分子筛 制备 表征 催化选择氧化 

分 类 号：O643[理学—物理化学] O612.4[理学—化学]