Multinuclear solid-state NMR studies on phase transition of mesostructured aluminophosphate
文献类型：期刊论文
| 作者 | Shen, Wanling; Yang, Jun; Li, Shenhui; Hu, Wei; Xu, Jun; Zhang, Hailu; Zou, Qin; Chen, Lei; Deng, Feng |
| 刊名 | MICROPOROUS AND MESOPOROUS MATERIALS
 |
| 出版日期 | 2010 |
| 卷号 | 127期号:1-2页码:73-81 |
| 关键词 | Aluminophosphate XRD Solid-state NMR Phase transition |
| 产权排序 | 第一 |
| 英文摘要 | The phase transition process from a hexagonal to a lamellar mesostructured aluminophosphate was studied by multinuclear solid-state NMR techniques in combination with low-angle XRD and elemental analysis measurements. The XRD result showed that after hydrothermal treatment for 9 h, the initial hexagonal phase began to transform to a lamellar phase. it was also found by NMR that some initially formed aluminophosphate was hydrolyzed during the earliest 2 In of the hydrothermal treatment, and the inorganic aluminophosphate framework became more and more condensed during the phase transition. The organic surfactant mainly has a gauche conformation in the hexagonal phase, whereas it mainly has a trans conformation in the lamellar phase and is packed more compactly. The Br(-) anion is found to be involved in the phase transition and likely enters into the interface to compensate the lost of negative charges that generated by the condensation of the aluminophosphate. Finally, a mechanism for the phase transition is proposed. (C) 2009 Elsevier Inc. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 学科主题 | 波谱分析 |
| 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] | MESOPOROUS MOLECULAR-SIEVES ; ECHO DOUBLE-RESONANCE ; IN-SITU ; SILICA/SURFACTANT COMPOSITES ; GEL PHASES ; ZEOLITE HY ; MQMAS NMR ; MAS NMR ; SURFACTANT ; INTERMEDIATE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000272070100010 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/1985]  |
| 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 | 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 | Shen, Wanling,Yang, Jun,Li, Shenhui,et al. Multinuclear solid-state NMR studies on phase transition of mesostructured aluminophosphate[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2010,127(1-2):73-81. |
| APA | Shen, Wanling.,Yang, Jun.,Li, Shenhui.,Hu, Wei.,Xu, Jun.,...&Deng, Feng.(2010).Multinuclear solid-state NMR studies on phase transition of mesostructured aluminophosphate.MICROPOROUS AND MESOPOROUS MATERIALS,127(1-2),73-81. |
| MLA | Shen, Wanling,et al."Multinuclear solid-state NMR studies on phase transition of mesostructured aluminophosphate".MICROPOROUS AND MESOPOROUS MATERIALS 127.1-2(2010):73-81. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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。