纳米孔
分子
溶解度
物理
电解质
离子
化学物理
分子动力学
离子键合
化学工程
纳米技术
材料科学
物理化学
化学
工程类
量子力学
电极
作者
Ling Liu,Xi Chen,Tae‐Wan Kim,Aijie Han,Yu Qiao
标识
DOI:10.1088/1367-2630/12/3/033021
摘要
When an electrolyte solution is pressurized into a molecular-sized nanopore, oppositely charged ions are strongly inclined to aggregate, which effectively reduces the ion solubility to zero. Inside the restrictive confinement, a unique quasi-periodic structure is formed where the paired ion couples are periodically separated by a number of water molecules. As the anion size or ion concentration varies, the geometrical characteristics of the confined ion structure would change considerably, leading to a significant variation in the transport pressure. Both experimental and simulation results indicate that, contradictory to the prediction of conventional theory, infiltration pressure decreases as the anions become larger.
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