Ordered mesoporous silcalite-1 zeolite assembled from colloidal nanocrystalline precursors
文献类型:期刊论文
作者 | Wei, Fangfang; Song, Weiguo; Wei, Fang; Cao, Changyan |
刊名 | CHINESE JOURNAL OF CATALYSIS
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出版日期 | 2015-06-01 |
卷号 | 36期号:6页码:838-844 |
关键词 | Ordered mesoporous zeolite Self-assembly Bottom-up method Nanosized seed |
英文摘要 | A series of ordered mesoporous silicalite-1 zeolites has been synthesized by the self-assembly of nanosized zeolite silicalite-1 seeds with different sizes using a two-step procedure. The nanosized silicalite-1 seeds were prepared with an alkali precursor solution that was heated for different periods, and then assembled into ordered mesoporous materials under strongly acidic conditions, similar to that of mesoporous silica SBA-15 which has well ordered hexagonal mesopores and amorphous walls. A significant change in synthesis conditions prevents the continued growth of zeolite seeds and induces assemblage into ordered mesoporous materials templated by triblock copolymers. The samples assembled by zeolite nanoclusters were investigated by X-ray diffraction, electron microscopy, infrared spectroscopy, and N-2 adsorption-desorption isotherms. This "bottom-up" approach yields porous materials that contain ordered micro- and mesopores. The mesoporous zeolite has a large surface area (> 730 m(2)/g). (C) 2015, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved. |
收录类别 | SCI |
语种 | 英语 |
公开日期 | 2015-11-02 |
源URL | [http://ir.iccas.ac.cn/handle/121111/28161] ![]() |
专题 | 化学研究所_分子纳米结构与纳米技术实验室 |
作者单位 | Chinese Acad Sci, Inst Chem, Lab Mol Nanostruct & Nanotechnol, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
推荐引用方式 GB/T 7714 | Wei, Fangfang,Song, Weiguo,Wei, Fang,et al. Ordered mesoporous silcalite-1 zeolite assembled from colloidal nanocrystalline precursors[J]. CHINESE JOURNAL OF CATALYSIS,2015,36(6):838-844. |
APA | Wei, Fangfang,Song, Weiguo,Wei, Fang,&Cao, Changyan.(2015).Ordered mesoporous silcalite-1 zeolite assembled from colloidal nanocrystalline precursors.CHINESE JOURNAL OF CATALYSIS,36(6),838-844. |
MLA | Wei, Fangfang,et al."Ordered mesoporous silcalite-1 zeolite assembled from colloidal nanocrystalline precursors".CHINESE JOURNAL OF CATALYSIS 36.6(2015):838-844. |
入库方式: OAI收割
来源:化学研究所
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