| W-MSU-2介孔分子筛的合成与表征 |
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| 引用本文： | 姚丽珠,田彦文.W-MSU-2介孔分子筛的合成与表征[J].石化技术与应用,2010,28(1):5-8. |
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| 作者姓名： | 姚丽珠 田彦文 |
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| 作者单位： | 1. 东北大学,材料与冶金学院,辽宁,沈阳,110004;辽宁石油化工大学,石油化工学院,辽宁,抚顺,113001
2. 东北大学,材料与冶金学院,辽宁,沈阳,110004 |
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| 摘 要： | 以壬烷基酚聚氧乙烯醚(Tx-15)为模板剂,正硅酸乙酯(TEOS)为硅源,氟化钾为助剂,采用原位一步法加入偏钨酸铵,在中性条件下合成了介孔分子筛W-MSU-2。通过X射线衍射(XRD)、N2吸附-脱附、傅里叶转换红外光谱(FTIR)对W-MSU-2分子筛的结构进行了表征。结果表明,W-MSU-2介孔分子筛仍具有MSU-2的介孔结构,并且W在骨架中保持较好的分散度。随着W加入量的增加,介孔分子筛有序度提高,孔径变小,比表面积增加;当W加入量(质量分数)为6%时,对介孔形成最为有利,此时分子筛孔径为3.1nm,比表面积为495m2/g。介孔分子筛经焙烧后,有序度增加且孔道未发生坍塌。
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| 关 键 词： | 介孔分子筛 孔径 比表面积 |
Synthesis and characterization of W-MSU-2 mesoporous molecular sieve |
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| Yao Lizhu,Tian Yanwen.Synthesis and characterization of W-MSU-2 mesoporous molecular sieve[J].Petrochemical Technology & Application,2010,28(1):5-8. |
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| Authors: | Yao Lizhu Tian Yanwen |
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| Affiliation: | 1. School of Materials & Metallurgy;Northeastern University;Shenyang 110004;China;2.School of Petrochemical Engineering;Liaoning University ofPetroleum & Chemical Technology;Fushun 113001;China |
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| Abstract: | W-MSU-2 mesoporous molecular sieve was synthesized with polyoxyethylene nonylphenoether(Tx-15) as template,tetraethyl orthosilicate(TEOS) as silica source,potassium as assistant reagent,by the route of one way and via adding ammonium tungstate by one step in-situ mode under the neutral conditions. The structure of W-MSU-2 was characterized by X-ray diffraction(XRD),N2 adsorption-desorption isotherm,Fourier transform infrared soectroscopy (FTIR) spectra and scanning electronic microscope (SEM). The results s... |
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| Keywords: | molecular mesoporous sieve pore diameter specific surface area |
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