| 全硅MEL纳米分子筛的合成及物化性质I．全硅MEL纳米分子筛的合成 |
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| 引用本文： | 董俊萍,余辉,谢颂海,龙英才.全硅MEL纳米分子筛的合成及物化性质I．全硅MEL纳米分子筛的合成[J].化学学报,2002,60(5):950-954. |
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| 作者姓名： | 董俊萍 余辉 谢颂海 龙英才 |
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| 作者单位： | 复旦大学化学系.上海(200433) |
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| 基金项目： | 国家自然科学基金 (No .2 0 0 730 10 )，教育部博士点基金资助项目 |
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| 摘 要： | 在TEOS-TBAOH-H_2O反应物体系中，水热条件下制备了全硅MEL （Silicalite- 2）沸石纳米晶。详细讨论反应物中TBAOH/TEOS摩尔比、H_2O/TEOS摩乐比、反应温 度等对沸石粒径的影响。结果表明，反应物中较高的碱度和TEOS（硅源）浓度，及 较低的晶化温度有利于MEL纳米分子筛的合成。
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| 关 键 词： | 沸石 分子筛 纳米相材料 水热反应 粒径 |
| 修稿时间： | 2001年8月27日 |
Synthesis and Physicochemical Properties of Siliceous Nano-Sized MEL Molecular Sieves I. Synthesis of Siliceous Nano-Sized MEL Molecular Sieves |
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| DONG,Jun-Ping YU,Hui XIE,Song-Hai LONG,Ying-Cai.Synthesis and Physicochemical Properties of Siliceous Nano-Sized MEL Molecular Sieves I. Synthesis of Siliceous Nano-Sized MEL Molecular Sieves[J].Acta Chimica Sinica,2002,60(5):950-954. |
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| Authors: | DONG Jun-Ping YU Hui XIE Song-Hai LONG Ying-Cai |
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| Institution: | Department of Chemistry, Fudan University.Shanghai(200433) |
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| Abstract: | Siliceous nano-sized MEL zeolite with average particle size less than 100 nm has been hydrothermally prepared in the reactant system of TBAOH-TEOS-H 2O free of alkali cations. The factors that influence particle size are also discussed. Higher molar ratio of TBAOH/TEOS and lower molar ratio of H 2O/TEOS in the reactant, as well as lower crystallization temperature are favorable to the formation of the zeolite with small particle size. |
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| Keywords: | MEL zeolite nano-sized hydrothermal synthesis Silicalite-2 ZSM-11 |
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