Reversible State Transition in Nanoconfined Aqueous Solutions
文献类型：期刊论文
| 作者 | Zhao, L ; Wang, CL ; Liu, J ; Wen, BH ; Tu, YS ; Wang, ZW ; Fang, HP |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2014 |
| 卷号 | 112期号:7 |
| 关键词 | CARBON NANOTUBES WATER NANOPARTICLES AGGREGATION HYDROPHOBICITY SIMULATIONS CLUSTERS LENGTH |
| ISSN号 | 0031-9007 |
| 通讯作者 | wangchunlei@sinap.ac.cn ; fanghaiping@sinap.ac.cn |
| 英文摘要 | Using molecular dynamics simulations, we find a reversible transition between the dispersion and aggregation states of solute molecules in aqueous solutions confined in nanoscale geometry, which is not observed in macroscopic systems. The nanoscale confinement also leads to a significant increase of the critical aggregation concentration (CAC). A theoretical model based on Gibbs free energy calculation is developed to describe the simulation results. It indicates that the reversible state transition is attributed to the low free energy barrier (of order k(B)T) in between two energy minima corresponding to the dispersion and aggregation states, and the enhancement of the CAC results from the fact that at lower concentrations the number of solute molecules is not large enough to allow the formation of a stable cluster in the confined systems. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000331953300035 |
| 公开日期 | 2015-03-13 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/14366]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Zhao, L,Wang, CL,Liu, J,et al. Reversible State Transition in Nanoconfined Aqueous Solutions[J]. PHYSICAL REVIEW LETTERS,2014,112(7). |
| APA | Zhao, L.,Wang, CL.,Liu, J.,Wen, BH.,Tu, YS.,...&Fang, HP.(2014).Reversible State Transition in Nanoconfined Aqueous Solutions.PHYSICAL REVIEW LETTERS,112(7). |
| MLA | Zhao, L,et al."Reversible State Transition in Nanoconfined Aqueous Solutions".PHYSICAL REVIEW LETTERS 112.7(2014). |
入库方式： OAI收割
来源：上海应用物理研究所
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