渗透力
材料科学
温度梯度
化学工程
电位梯度
膜
能量转换
缓压渗透
离子
热能
浓度梯度
纳米技术
热流密度
化学物理
传热
热力学
色谱法
有机化学
化学
正渗透
气象学
物理
工程类
反渗透
量子力学
生物化学
作者
Tianliang Xiao,Xuejiang Li,Zhaoyue Liu,Bingxin Lu,Jin Zhai,Xungang Diao
出处
期刊:Nano Energy
[Elsevier]
日期:2022-09-01
卷期号:103: 107782-107782
标识
DOI:10.1016/j.nanoen.2022.107782
摘要
Organisms can make use of the ion channels embedded on the cell membranes to harvest osmotic energy and heat energy, which provides inspirations to design artificial nanochannel-based power generators. Herein, two-dimensional (2D) montmorillonite (MMT) nanochannels are fabricated with a facile method of direct assembling the exfoliated monolayers in a liquid phase to achieve the biomimetic power generation from salinity- and heat-gradient. The high cation selectivity and sufficient ion flux enable MMT nanochannels to present high power densities of ~4.58 W/m 2 under 50-fold concentration gradient and ~0.47 W/m 2 under 30 °C temperature gradient, respectively. The performance can be further improved to ~8.53 W/m 2 to harvest the energy stored in the thermal-osmotic gradient. The facile and cost-effective MMT nanochannels open new insights into biomimetic energy conversion from various sources. • Biomimetic 2D nanochannels were fabricated through a simple and low-cost method. • The ion transport was controlled in the confined space of nanochannels. • The nanochannels were applied to convert osmotic energy and heat energy. • The thermal-osmotic gradient enhanced the power generation performance.
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