纳米孔
膜
能量转换
离子
化学物理
能量转换效率
电介质
材料科学
渗透力
联轴节(管道)
反向电渗析
化学工程
化学
分析化学(期刊)
纳米技术
光电子学
色谱法
热力学
复合材料
有机化学
生物化学
物理
工程类
反渗透
正渗透
电渗析
作者
Zheng Liu,Ting Chen,Guohua Liu
出处
期刊:Desalination
[Elsevier BV]
日期:2024-01-04
卷期号:574: 117287-117287
被引量:8
标识
DOI:10.1016/j.desal.2023.117287
摘要
There is growing interest in harnessing energy from salinity gradients because it is readily available in nature. However, the energy harvesting system is not a separate liquid region but a coupling of solid membrane and liquid that leads to a distinct ions transport behaviors. Here, we propose a coupling model containing membrane and fluidic domain to study the effect of dielectric membrane on energy conversion performance. The results show that the surface charge of nanopore is strongly dependent of solution property (ion concentration and pH) and membrane property. The dielectric membrane promotes the surface charge and electrostatic interaction that enhances the energy conversion performance. Such enhancement is more significant at short nanopore with high concentration gradient and solution pH. The maximum output power of 2 pW and energy conversion efficiency of 42 % are obtained for single nanopore. As a proof of concept, it exhibits huge deviations if not consider the membrane and its influence on surface charge. This study provides a fresh insight on the interactions between solid membrane and solution properties in terms of energy conversion, thereby enhancing the potential for developing energy conversion devices.
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