| 晶化温度对MCM-41结晶度、酸性和骨架铝结构的影响 |
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| 引用本文： | 高雄厚,张忠东,王晋军,王智峰,毛学文,沈师孔.晶化温度对MCM-41结晶度、酸性和骨架铝结构的影响[J].分子催化,1999,13(2):127-131. |
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| 作者姓名： | 高雄厚 张忠东 王晋军 王智峰 毛学文 沈师孔 |
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| 作者单位： | 中国石油化工总公司兰州炼油化工总厂石油化工研究院，中国科学院兰州化学物理研究所 |
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| 摘 要： | 选择硅酸钠－硫酸铝－十六烷基三甲基氯化铵体系，在水热条件下合成ＭＣＭ－４１中孔分子筛，采用ＸＲＤ、ＩＲ、ＮＨ３－ＴＰＤ、２７Ａｌ－ＭＡＳＮＭＲ进行了晶化温度与ＭＣＭ－４１分子筛结构和性能的关联研究．结果表明，在晶化温度为１５０℃时，ＭＣＭ－４１分子筛的结晶度最高；适当提高晶化温度，ＭＣＭ－４１分子筛呈现出酸性增加、四铝配位环境趋于规则和弱酸中心逐渐消失的规律．
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| 关 键 词： | MCM－41分子筛 合成 晶化温度 |
Effect of Crystallization Temperature on Structureand Performance of MCM41 |
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| GAO XionghouZHANG ZhongdongWANG JijunWANG ZhifengMAO Xueyi.Effect of Crystallization Temperature on Structureand Performance of MCM41[J].Journal of Molecular Catalysis (China),1999,13(2):127-131. |
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| Authors: | GAO XionghouZHANG ZhongdongWANG JijunWANG ZhifengMAO Xueyi |
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| Institution: | GAO XionghouZHANG ZhongdongWANG JijunWANG ZhifengMAO Xueyi (Research Institute of Lanzhou Protroleum and Chemical ComplexLanzhou730060) SHEN Shikong (Lanzhou Institute of Chemical Physics The Chinese Academy of SciencesLanzhou730000) |
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| Abstract: | MCM41 mesoporous materials were synthesized using Na2SiO3Al2(SO4)3CTMA+H2O system under hydrothermal conditions. XRD, IR, MAS NMR and NH3TPD were used to invesitigate the effect of crystallization temperature on their structure and performance. The results show that MCM41 with high crystallinity is obtained at 150 ; the acidity of MCM41 increased and the number of weak acid sites decrease with increasing crystallization temperature. |
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| Keywords: | MCM41 molecular sieve Synthesis Crystallization temperature |
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