首页 | 本学科首页   官方微博 | 高级检索  
     检索      

MCM-41介孔材料负载金属的一步法合成及其对酯化反应的催化作用
引用本文:赵会玲,许胜,周建海,胡军,刘洪来.MCM-41介孔材料负载金属的一步法合成及其对酯化反应的催化作用[J].物理化学学报,2011,27(2):499-504.
作者姓名:赵会玲  许胜  周建海  胡军  刘洪来
作者单位:Laboratory for Advanced Materials, Department of Chemistry, East China University of Science and Technology, Shanghai 200237, P. R. China
基金项目:国家自然科学基金(20776045,20736002); 长江学者创新团队(IRT0721)资助项目~~
摘    要:以增溶了茂金属的十六烷基三甲基溴化铵(CTAB)胶束为模板, 采用一步法合成了介孔表面负载有金属(铁、钛和锆)的介孔材料MCM-41, 通过等离子体电感耦合发射光谱仪(ICP-AES)测定铁、钛和锆负载量(质量分数)分别为1.71%、0.95%和0.81%. 通过X射线衍射(XRD)图谱和N2吸脱附等温线可知, 负载金属的介孔材料M-MCM-41(T) 仍具有较高的比表面以及规整的六方有序孔道结构, 去除模板剂的焙烧温度对孔道结构有一定影响. 由一步法合成的金属负载介孔材料对乙酸正丁酯的酯化反应具有很高的催化活性, 其中Fe-MCM-41在单位时间单位金属催化生成的产物量(TOF)为55643 g·h-1·g-1, 而Zr-MCM-41的TOF高达125320 g·h-1·g-1. 与纯茂金属相比, 由茂金属合成的金属负载介孔材料可显著提高酯化反应的催化活性.

关 键 词:茂金属  M-MCM-41  一步法合成  酯化  催化效率  
收稿时间:2010-09-10
修稿时间:2011-01-05

One-Step Synthesis of Metal-Doped Mesoporous MCM-41 Materials and Their Application in Esterification Catalysis
ZHAO Hui-Ling,XU Sheng,ZHOU Jian-Hai,HU Jun,LIU Hong-Lai.One-Step Synthesis of Metal-Doped Mesoporous MCM-41 Materials and Their Application in Esterification Catalysis[J].Acta Physico-Chimica Sinica,2011,27(2):499-504.
Authors:ZHAO Hui-Ling  XU Sheng  ZHOU Jian-Hai  HU Jun  LIU Hong-Lai
Institution:Laboratory for Advanced Materials, Department of Chemistry, East China University of Science and Technology, Shanghai 200237, P. R. China
Abstract:Metals(Fe,Ti,Zr) were doped into mesoporous MCM-41 by a one-step method using cetyltriethylammonium bromide(CTAB) micelles with micellar solubilized metallocenes as templates.X-ray diffraction(XRD) and N2 adsorption-desorption isotherms show that after metallocene doping,M-MCM-41(T) materials still preserved the ordered hexagonal structure and high BET surface area.Inductively coupled plasma atomic emission spectrometry(ICP-AES) indicated that the mass fractions of the metals in the corresponding samples ar...
Keywords:Metallocene  M-MCM-41  One-step impregnation  Esterification  Catalysis effect  
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《物理化学学报》浏览原始摘要信息
点击此处可从《物理化学学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号