Drastic Phase Transition in Ionic Liquid [Dmim][CI] Confined Between Graphite Walls: New Phase Formation
文献类型：期刊论文
| 作者 | Sha, ML ; Wu, GZ ; Liu, YS ; Tang, ZF ; Fang, HP |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2009 |
| 卷号 | 113期号:11页码:5 |
| ISSN号 | 1932-7447 |
| 通讯作者 | Wu, GZ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, POB 800-204, Shanghai 201800, Peoples R China |
| 英文摘要 | Confinement can induce unusual behavior in the properties of matter. Using atomistic molecular dynamics simulations, we report here a liquid-to-solid transition of a bilayer of ionic liquid 1,3-dimethylimidazolium chloride ([Dmim][CI]) confined between graphite walls in order to mimic the phase transition of an ionic liquid confined to hydrophobic nanospace. It was found that the ionic liquid bilayer undergoes a clear and drastic phase transition at a wall distance of about 1.1 nm, forming a new high-melting-point solid phase with different hydrogen bonding networks. In the new phase, each cation is surrounded by the three nearest-neighbor anions, and each anion is also encircled by the three nearest-neighbor cations. Strong pi-pi stacking interactions are found between the cations of the bilayer solid. The anions can be formed into a hexagonal ring around the cations. The new bilayer solid is a high-melting-point crystal possessing a melting point of 825-850 K, which is higher than that of the bulk crystal by more than 400 K. |
| 学科主题 | Chemistry; Science & Technology - Other Topics; Materials Science |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000264111300058 |
| 公开日期 | 2012-04-11 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/6892]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2004-2010年 |
| 推荐引用方式 GB/T 7714 | Sha, ML,Wu, GZ,Liu, YS,et al. Drastic Phase Transition in Ionic Liquid [Dmim][CI] Confined Between Graphite Walls: New Phase Formation[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2009,113(11):5. |
| APA | Sha, ML,Wu, GZ,Liu, YS,Tang, ZF,&Fang, HP.(2009).Drastic Phase Transition in Ionic Liquid [Dmim][CI] Confined Between Graphite Walls: New Phase Formation.JOURNAL OF PHYSICAL CHEMISTRY C,113(11),5. |
| MLA | Sha, ML,et al."Drastic Phase Transition in Ionic Liquid [Dmim][CI] Confined Between Graphite Walls: New Phase Formation".JOURNAL OF PHYSICAL CHEMISTRY C 113.11(2009):5. |
入库方式： OAI收割
来源：上海应用物理研究所
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。