Formation of six-coordinated silicon in calcium phosphosilicate xerogels assisted by polyols at low temperature and pressure
文献类型：期刊论文
| 作者 | Li, Ai-Ling; Ma, Yan-Ping; Qiu, Dong |
| 刊名 | CHINESE CHEMICAL LETTERS
 |
| 出版日期 | 2015-06-01 |
| 卷号 | 26期号:6页码:768-772 |
| 关键词 | Phosphosilicate Six-coordinated silicon Polyols MAS-NMR |
| 英文摘要 | Silicon is usually found to be four-coordinated when neighbored with oxygen. Six-coordinated silicon is only seen in samples at very specific composition or made at high temperature/pressure. In this study, we managed to synthesize calcium phosphosilicate xerogels containing six-coordinated silicon with the help of polyols by sol-gel method, without the need of treatment at high temperature or high pressure. Both phosphorus precursors and polyols were found to be essential for the formation of six-coordinated silicon species; in the absence of either species, only normal four-coordinated silicon was observed under otherwise identical conditions. Samples containing six-coordinated silicon sites were found to release silicon species faster than those without six-coordinated silicon sites upon dissolved in water, suggesting that six-coordinated silicon species have higher reactivity toward hydrolysis. (C) 2015 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2015-11-02 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/27932]  |
| 专题 | 化学研究所_高分子物理与化学实验室 |
| 作者单位 | Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Ai-Ling,Ma, Yan-Ping,Qiu, Dong. Formation of six-coordinated silicon in calcium phosphosilicate xerogels assisted by polyols at low temperature and pressure[J]. CHINESE CHEMICAL LETTERS,2015,26(6):768-772. |
| APA | Li, Ai-Ling,Ma, Yan-Ping,&Qiu, Dong.(2015).Formation of six-coordinated silicon in calcium phosphosilicate xerogels assisted by polyols at low temperature and pressure.CHINESE CHEMICAL LETTERS,26(6),768-772. |
| MLA | Li, Ai-Ling,et al."Formation of six-coordinated silicon in calcium phosphosilicate xerogels assisted by polyols at low temperature and pressure".CHINESE CHEMICAL LETTERS 26.6(2015):768-772. |
入库方式： OAI收割
来源：化学研究所
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