Molecular engineering of microporous crystals: (IV) Crystallization process of microporous aluminophosphate AlPO4-11
文献类型：期刊论文
| 作者 | Cheng, Tao2; Xu, Jun3; Li, Xu1; Li, Yi1; Zhang, Bin1; Yan, Wenfu1; Yu, Jihong1; Sun, Huai2; Deng, Feng3; Xu, Ruren1 |
| 刊名 | MICROPOROUS AND MESOPOROUS MATERIALS
 |
| 出版日期 | 2012-04-01 |
| 卷号 | 152页码:190-207 |
| 关键词 | Aluminophosphate AlPO4-11 Fragment Crystallization Zeolite |
| 英文摘要 | The products of microporous aluminophosphate AlPO4-11 crystallized for different periods of time were freeze-dried and characterized by XRD and NMR techniques. Six crystallographically distinct Al- and P-centered large fragments and 34 small fragments of dimer (Al-P), trimer (Al-P-Al and P-Al-P), tetramer (Al-P-3 and P-Al-3). pentamer (Al-P-4 and P-Al-4), and 4- and 6-membered rings were extracted from the framework of AlPO4-11. Each of the six large fragments contained two completed coordination layers surrounding the centered atom. The shielding tensors of the Al and P atoms of the fragments were calculated using the quantum mechanics density functional theory. The experimentally observed chemical shifts of Al or P from the well-crystallized AlPO4-11 were assigned to the shielding tensors of the center atoms of the six large fragments and were further used as references in the determination of the chemical shifts of the Al or P atoms in the small fragments. A comparison of the calculated chemical shifts of the Al and P atoms in the small fragments to the experimental data of the products isolated at different crystallization periods suggested that the fragments of dimers, trimers of the form Al-P-Al, tetramers of the form P-Al-3, and pentamers may exist in the crystallization process of AlPO4-11. On the basis of these observations regarding the putative small fragments, a possible crystallization process of AlPO4-11 was proposed. (C) 2011 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] | MFI ZEOLITE ; SILICALITE-1 CRYSTALLIZATION ; TPAOH-TEOS-H2O SYSTEM ; STRUCTURE DIRECTION ; ZEOSIL NANOSLABS ; UV-RAMAN ; MECHANISM ; NMR ; PHOSPHATES ; SIEVE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000300269000026 |
| 公开日期 | 2015-07-14 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/1609]  |
| 专题 | 武汉物理与数学研究所_磁共振应用研究部 |
| 作者单位 | 1.Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China 2.Shanghai Jiao Tong Univ, Coll Chem & Chem Engn, Shanghai 200240, Peoples R China 3.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Ctr Magnet Resonance, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng, Tao,Xu, Jun,Li, Xu,et al. Molecular engineering of microporous crystals: (IV) Crystallization process of microporous aluminophosphate AlPO4-11[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2012,152:190-207. |
| APA | Cheng, Tao.,Xu, Jun.,Li, Xu.,Li, Yi.,Zhang, Bin.,...&Xu, Ruren.(2012).Molecular engineering of microporous crystals: (IV) Crystallization process of microporous aluminophosphate AlPO4-11.MICROPOROUS AND MESOPOROUS MATERIALS,152,190-207. |
| MLA | Cheng, Tao,et al."Molecular engineering of microporous crystals: (IV) Crystallization process of microporous aluminophosphate AlPO4-11".MICROPOROUS AND MESOPOROUS MATERIALS 152(2012):190-207. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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