Multinuclear Solid-State NMR Studies on the Formation Mechanism of Aluminophosphate Molecular Sieves in Ionic Liquids
文献类型：期刊论文
| 作者 | Xu, Renshun1; Zhang, Weiping2; Xu, Jun3; Tian, Zhijian1; Deng, Feng3; Han, Xiuwen1; Bao, Xinhe1 |
| 刊名 | journal of physical chemistry c
 |
| 出版日期 | 2013-03-21 |
| 卷号 | 117期号:11页码:5848-5854 |
| 产权排序 | 待补充 |
| 通讯作者 | 张维萍 ; 包信和 |
| 合作状况 | 英 |
| 英文摘要 | in the present work, multinuclear solid-state nmr techniques together with power x-ray diffraction (xrd) and scanning electron microscopy (sem) were employed to monitor the crystallization process of aluminophosphate alpo4-11 molecular sieves in 1-ethyl-3-methylimidazolium bromide ([emim]br) ionic liquids (lls). the local environments of the selected solid samples were probed by one-dimensional al-27, p-31, and f-19 mas nmr experiments, and more information was obtained from two-dimensional al-27 -> p-31 heteronuclear correlation (hetcor) and al-27 triple-quantum mas (3qmas) experiments. it is found that a large amount of amorphous aluminophosphates was formed with the f-al-oct-o-p-par and al-tet-o-p-par structures in the initial stage of aging. with increasing crystallization time, the partially condensed framework phosphorus species disappeared gradually and became fully condensed. meanwhile, the octahedral al was transformed into the pentahedra] and tetrahedral al species with the structures of f-al-penta-o-p-ful and al-tet-o-p-ful in the alpo4-11 frameworks. during the crystallization process, [emim] cations acting as the structure-directing agents were occluded into the channels, and f- anions were connected with pentahedral al in the final alpo4-11 phase. all of these findings can allow proposing a possible formation mechanism for the synthesis of alpo4-11 in ionic liquids. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 学科主题 | 物理化学 |
| 类目[WOS] | chemistry, physical ; nanoscience & nanotechnology ; materials science, multidisciplinary |
| 研究领域[WOS] | chemistry ; science & technology - other topics ; materials science |
| 关键词[WOS] | ionothermal synthesis ; zeolite ; frameworks ; spectroscopy ; insights ; phases ; system ; amines |
| 收录类别 | SCI |
| 资助信息 | 1，1 |
| 原文出处 | 5854 |
| 语种 | 英语 |
| WOS记录号 | WOS:000316773000039 |
| 公开日期 | 2014-09-11 |
| 源URL | [http://159.226.238.44/handle/321008/119310]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China 3.Chinese Acad Sci, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Ctr Magnet Resonance, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Renshun,Zhang, Weiping,Xu, Jun,et al. Multinuclear Solid-State NMR Studies on the Formation Mechanism of Aluminophosphate Molecular Sieves in Ionic Liquids[J]. journal of physical chemistry c,2013,117(11):5848-5854. |
| APA | Xu, Renshun.,Zhang, Weiping.,Xu, Jun.,Tian, Zhijian.,Deng, Feng.,...&Bao, Xinhe.(2013).Multinuclear Solid-State NMR Studies on the Formation Mechanism of Aluminophosphate Molecular Sieves in Ionic Liquids.journal of physical chemistry c,117(11),5848-5854. |
| MLA | Xu, Renshun,et al."Multinuclear Solid-State NMR Studies on the Formation Mechanism of Aluminophosphate Molecular Sieves in Ionic Liquids".journal of physical chemistry c 117.11(2013):5848-5854. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。