The dependence of the structure-directing effect of piperazine and the crystallization pathways of open-framework aluminophosphates on the local environment of the initial mixture
文献类型：期刊论文
| 作者 | Tong, Xiaoqiang1; Xu, Jun2; Wang, Chao2; Yan, Wenfu1; Yu, Jihong1; Deng, Feng2; Xu, Ruren1 |
| 刊名 | MICROPOROUS AND MESOPOROUS MATERIALS
 |
| 出版日期 | 2014 |
| 卷号 | 183页码:108-116 |
| 关键词 | Zeolite Aluminophosphate Templating effect Structure-directing effect Piperazine |
| 英文摘要 | In the synthetic system of Al2O3-x P2O5-6.4 piperazine-227 H2O, three open-framework aluminophosphates (2D AlPO-CJ9, 3D AlPO-JU88, and 2D AP2pip) were obtained by varying the Al2O3/P2O5 ratio. The crystallization processes of AlPO-CJ9, AlPO-JU88, and AP(2)pip were investigated using solid state NMR in combination with XRD and other characterization techniques. The results showed that a small change in the Al2O3/P2O5 ratio can significantly affect the type and distribution of the small fragments formed during the crystallization process. The structure-directing effect of piperazine was influenced and modified by the Al2O3/P2O5 ratio. For compounds crystallized from the same synthetic system but separate synthetic batches, i.e., AlPO-C19, AlPO-JU88, and AP(2)pip, we found differences in the crystallization pathways of the small fragments, the types and distributions of the small fragments, the evolutions of the concentrations of Al and P and the pH values of the liquid phases. These differences were studied by comparing the crystallization processes of AlPO-CJ9, AlPO-JU88, and AP(2)pip from different synthetic batches and showed that the structural details of the same compounds obtained from different synthetic batches were different. Therefore, the topological structure-directing effect is more appropriate than the structure-directing effect in describing the role that the added agents played in the crystallization of open-framework materials. The structure-directing effect of the added agents and the crystallization pathways of the open-framework materials are dependent on the local environment, i.e., the types and distributions of the small fragments, the relative ratio of the species. (C) 2013 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] | LAYERED ALUMINOPHOSPHATES ; MOLECULAR-SIEVES ; NMR ; SPECTROSCOPY ; ZEOLITES ; ALPO4-11 ; TEMPLATE ; ABILITY ; RING |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000327284900015 |
| 公开日期 | 2015-07-14 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/1357]  |
| 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.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tong, Xiaoqiang,Xu, Jun,Wang, Chao,et al. The dependence of the structure-directing effect of piperazine and the crystallization pathways of open-framework aluminophosphates on the local environment of the initial mixture[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2014,183:108-116. |
| APA | Tong, Xiaoqiang.,Xu, Jun.,Wang, Chao.,Yan, Wenfu.,Yu, Jihong.,...&Xu, Ruren.(2014).The dependence of the structure-directing effect of piperazine and the crystallization pathways of open-framework aluminophosphates on the local environment of the initial mixture.MICROPOROUS AND MESOPOROUS MATERIALS,183,108-116. |
| MLA | Tong, Xiaoqiang,et al."The dependence of the structure-directing effect of piperazine and the crystallization pathways of open-framework aluminophosphates on the local environment of the initial mixture".MICROPOROUS AND MESOPOROUS MATERIALS 183(2014):108-116. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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