Synthesis and structure analysis of zeolite AS-1 from HF-Al(2)O(3)-SiO(2)-ethylenediamine-H(2)O | |
Dong, Jin X.1; Wang, Ying X.2; Xu, Hong1; Deng, Feng3; Xu, Jun3; Wang, Jian G.4 | |
刊名 | MICROPOROUS AND MESOPOROUS MATERIALS
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2008-12-01 | |
卷号 | 116期号:1-3页码:491-497 |
关键词 | Zeolite AS-1 DFT analogue Synthesis Characterization Structure analysis |
英文摘要 | Zeolite AS-1, an aluminosilicate analogue with a DFT framework, has been synthesized hydrothermally from a system of HF-Al(OH)(3)-SiO(2)-ethylenediamine-H(2)O and characterized by TC-DTA, NMR, and XRD techniques. The coexistence of fluoride anions and diprotonated ethylenediamine cations in the reaction system plays an important role in the formation of the AS-1 framework with Si/Al = 1. The (27)Al NMR spectrum shows only one signal due to tetracoordinated aluminum at a chemical shift of ca. 57 ppm. In the (29)Si NMR spectrum, there is only one main peak at ca. -89 ppm, which is assigned to the resonance of Si(4Al). The structure of AS-1 has been determined on the basis of powder X-ray diffraction data, using Rietveld analysis. AS-1 crystallizes in the space group P4(2)/n with lattice parameters of a = 10.3022(1) angstrom and c = 8.8785(1) angstrom at 21 degrees C. Both the NMR spectra and the structure analysis data indicate that the distribution of Si and Al in the framework of AS-1 follows a strictly alternating pattern, in accordance with the Lowenstein avoidance rule. The framework of AS-1 can be represented by a cross-linking of bifurcated hexagonal-square (bhs) chains or by the connection of superimposed 4.8(2) nets. (C) 2008 Elsevier Inc. All rights reserved. |
WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
类目[WOS] | Chemistry, Applied ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
研究领域[WOS] | Chemistry ; Science & Technology - Other Topics ; Materials Science |
关键词[WOS] | CRYSTAL-STRUCTURE ; COBALT PHOSPHATE ; TOPOLOGY |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000261133600069 |
公开日期 | 2015-10-13 |
内容类型 | 期刊论文 |
源URL | [http://ir.wipm.ac.cn/handle/112942/8015] ![]() |
专题 | 武汉物理与数学研究所_2011年以前论文发表(包括2011年) |
作者单位 | 1.Taiyuan Univ Technol, Res Inst Special Chem, Taiyuan 030024, Peoples R China 2.Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 4.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China |
推荐引用方式 GB/T 7714 | Dong, Jin X.,Wang, Ying X.,Xu, Hong,et al. Synthesis and structure analysis of zeolite AS-1 from HF-Al(2)O(3)-SiO(2)-ethylenediamine-H(2)O[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2008,116(1-3):491-497. |
APA | Dong, Jin X.,Wang, Ying X.,Xu, Hong,Deng, Feng,Xu, Jun,&Wang, Jian G..(2008).Synthesis and structure analysis of zeolite AS-1 from HF-Al(2)O(3)-SiO(2)-ethylenediamine-H(2)O.MICROPOROUS AND MESOPOROUS MATERIALS,116(1-3),491-497. |
MLA | Dong, Jin X.,et al."Synthesis and structure analysis of zeolite AS-1 from HF-Al(2)O(3)-SiO(2)-ethylenediamine-H(2)O".MICROPOROUS AND MESOPOROUS MATERIALS 116.1-3(2008):491-497. |
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