| 含L沸石次级结构单元的介孔分子筛的合成 |
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| 引用本文： | 王姗,窦志容,李玉平,闫子春,李晓峰,窦涛. 含L沸石次级结构单元的介孔分子筛的合成[J]. 工业催化, 2005, 13(2): 51-54 |
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| 作者姓名： | 王姗 窦志容 李玉平 闫子春 李晓峰 窦涛 |
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| 作者单位： | 太原理工大学精细化工研究所,山西,太原,030024;太原理工大学精细化工研究所,山西,太原,030024;石油大学(北京)化工学院CNPC催化重点实验室,北京,102249 |
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| 基金项目： | 国家自然科学基金资助项目(20173039);中国石油天然气股份化工公司资助项目 |
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| 摘 要： | 以极低浓度n(CTAB)∶n(SiO2)=0.06的阳离子表面活性剂十六烷基三甲基溴化铵（CTAB）为模板，以具有L沸石次级结构单元的溶胶为前驱体，在碱性条件下合成介孔分子筛L-MCM-41。样品的XRD、FT-IR、N2吸附脱附和NH3-TPD等表征结果表明，合成出的介孔分子筛是孔壁含有L沸石次级结构单元的六方晶相结构，该介孔分子筛的孔壁厚于常规水热方法合成的MCM-41的孔壁，具有较高的水热稳定性和较强的酸性。
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| 关 键 词： | 介孔分子筛 L沸石次级结构单元 水热稳定性 酸性 |
| 文章编号： | 1008-1143(2005)02-0051-04 |
| 修稿时间： | 2004-09-29 |
Synthesis of mesoporous molecular sieves with secondary building units of L zeolite |
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| WANG Shan,DOU Zhi-rong,LI Yu-ping,YAN Zi-chun,LI Xiao-feng,DOU Tao. Synthesis of mesoporous molecular sieves with secondary building units of L zeolite[J]. Industrial Catalysis, 2005, 13(2): 51-54 |
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| Authors: | WANG Shan DOU Zhi-rong LI Yu-ping YAN Zi-chun LI Xiao-feng DOU Tao |
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| Affiliation: | 1.Institute of Special Chemicals,Taiyuan University of Technology,Taiyuan 030024, China; 2.The CNPC key laboratory of Catalysis, University of Petroleum Co., Beijing 102249, China |
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| Abstract: | Mesoporous aluminosilicates with the structure of MCM-41 were synthesized in alkaline media using the cationic surfactants of CTAB of very low concentration（CTAB/SiO2=0.06）as the template and the gel containing secondary building units of L zeolite as the precursors. XRD, FT-IR , N2 adsorption desorption isotherms and NH3-TPD results indicated that the mesoporous molecular sieve synthesized has hexagonal structure with L zeolite secondary building units on its pore walls, which were thicker than those of MCM-41 synthesized by conventional hydrothermal method. The material exhibited high hydrothermal stability and strong acidity . |
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| Keywords: | mesoporous molecular sieve secondary building units of L zeolite hydrothermal stability acidity |
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