Solid-state NMR Studies on AIPO(4)-5 Molecular Sieve with Al/P > 1
文献类型：期刊论文
| 作者 | Deng Feng1; Dong Jinxiang2; Du Youru1; Ye Chaohui1 |
| 刊名 | ACTA PHYSICO-CHIMICA SINICA
 |
| 出版日期 | 1997 |
| 卷号 | 13期号:9页码:780-785 |
| 关键词 | AlPO4-5 Al/P > 1 Al-O-Al linkage P-31 and Al-27 NMR |
| 英文摘要 | Solid-state NMR. spectroscopy was employed to investigate the coordination state of P and Al, as well as their linkages in a series of newly synthesized aluminophosphate molecular sieve AlPO4-5 with Al/P>1. Both P-31 and Al-27 NMR provides evidence that Al-O-Al linkages are present in the framework of these molecular sieves, which implies that the ordering : rang cut of P and Al does not obey the well-known Loewenstein rule. Apart from the usually observed NMR signals, a broad peak at ca. delta=10 is present in the Al-27 MAS spectra of the calcined and dehydrated AlPO4-5 molecular sieves. Doe to its large second-order quadrupole shift, an isotropic chemical shift of ca. delta=24 was estimated. Hence, we attribute this signal to 4-coordinated aluminium Al[nAl, (4-n)P)] (n=1,2,3,4). Similarly, an additional broad signal at delta=-24 was observed in the corresponding P-31 MAS spectra and is due to the P coordination state in which its second coordinated shell contains Al PETAL (4-n)P](second shell) (n=1,2,3,4). |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000207601900003 |
| 公开日期 | 2015-12-01 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/8260]  |
| 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.Chinese Acad Sci, Wuhan Inst Phys, Lab Nucl Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 2.Taiyuan Univ Technol, Taiyuan 030024, Peoples R China |
| 推荐引用方式 GB/T 7714 | Deng Feng,Dong Jinxiang,Du Youru,et al. Solid-state NMR Studies on AIPO(4)-5 Molecular Sieve with Al/P > 1[J]. ACTA PHYSICO-CHIMICA SINICA,1997,13(9):780-785. |
| APA | Deng Feng,Dong Jinxiang,Du Youru,&Ye Chaohui.(1997).Solid-state NMR Studies on AIPO(4)-5 Molecular Sieve with Al/P > 1.ACTA PHYSICO-CHIMICA SINICA,13(9),780-785. |
| MLA | Deng Feng,et al."Solid-state NMR Studies on AIPO(4)-5 Molecular Sieve with Al/P > 1".ACTA PHYSICO-CHIMICA SINICA 13.9(1997):780-785. |
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。