One- and two-dimensional solid-state magic angle spinning NMR studies on the hydration process of layered sodium disilicate SKS-6
文献类型:期刊论文
作者 | Ai, XJ; Deng, F; Dong, JX; Hu, W; Xu, H; Ye, CH |
刊名 | SOLID STATE NUCLEAR MAGNETIC RESONANCE
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出版日期 | 2004-06-01 |
卷号 | 25期号:4页码:216-226 |
关键词 | layered sodium disilicate hydration H-1 MAS Si-29 MAS NOESY Lee-Goldburg correlation spectroscopy |
英文摘要 | Three different kinds of silanols, which include isolated silanol, silanol I (with the hydroxyl proton bonded to an oxygen atom in the adjacent layer) and silanol II (with the hydroxyl proton bonded to the non-bridging oxygen at the same silicon atom), are generated during the hydration process of SKS-6 (delta-Na2Si2O5). H-1-H-1 nuclear Overhauser enhancement spectroscopy reveals that the proton of silanol I has an effective chemical exchange or spin diffusion with the proton of hydrogen-bonded water, while the proton of silanol II is likely far away from the other proton-containing species. Si-29 magic angle spinning, H-1 --> Si-29 CP/MAS NMR and H-1-Si-29 phase-modulated Lee-Goldburg decoupled correlation experiments demonstrate that the local environments of the silicon sites in the final hydrated sample are mainly composed of Q(2) [(SiO)(2)Si(OH)O-Na+], Q(3) [(SiO),Si(OH) and (SiO)(3)SiO-Na+] and Q(4) [Si(OSi)(4)] groups. (C) 2003 Elsevier Inc. All rights reserved. |
WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
类目[WOS] | Chemistry, Physical ; Physics, Atomic, Molecular & Chemical ; Physics, Condensed Matter ; Spectroscopy |
研究领域[WOS] | Chemistry ; Physics ; Spectroscopy |
关键词[WOS] | MAS-NMR ; SILICATE-GLASSES ; CROSS-POLARIZATION ; CRYSTAL-STRUCTURE ; HYDROUS SILICATE ; SPECTROSCOPY ; SI-29 ; ECHO |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000221234200002 |
公开日期 | 2015-07-28 |
源URL | [http://ir.wipm.ac.cn/handle/112942/4397] ![]() |
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 & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 2.Taiyuan Univ Technol, Res Inst Special Chem, Taiyuan 030024, Peoples R China |
推荐引用方式 GB/T 7714 | Ai, XJ,Deng, F,Dong, JX,et al. One- and two-dimensional solid-state magic angle spinning NMR studies on the hydration process of layered sodium disilicate SKS-6[J]. SOLID STATE NUCLEAR MAGNETIC RESONANCE,2004,25(4):216-226. |
APA | Ai, XJ,Deng, F,Dong, JX,Hu, W,Xu, H,&Ye, CH.(2004).One- and two-dimensional solid-state magic angle spinning NMR studies on the hydration process of layered sodium disilicate SKS-6.SOLID STATE NUCLEAR MAGNETIC RESONANCE,25(4),216-226. |
MLA | Ai, XJ,et al."One- and two-dimensional solid-state magic angle spinning NMR studies on the hydration process of layered sodium disilicate SKS-6".SOLID STATE NUCLEAR MAGNETIC RESONANCE 25.4(2004):216-226. |
入库方式: OAI收割
来源:武汉物理与数学研究所
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