Electricity generation from water droplets via capillary infiltrating

被引：108

作者：

Li, Jia ^{[1
]}

Liu, Kang ^{[1
]}

Xue, Guobin ^{[1
]}

Ding, Tianpeng ^{[1
]}

Yang, Peihua ^{[1
]}

Chen, Qian ^{[1
]}

Shen, Yue ^{[2
]}

Li, Song ^{[3
]}

Feng, Guang ^{[3
]}

Shen, Aiguo ^{[4
]}

Xu, Ming ^{[2
]}

Zhou, Jun ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China

[2] Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, Wuhan 430074, Hubei, Peoples R China

[3] Huazhong Univ Sci & Technol, Sch Energy & Power Engn, State Key Lab Coal Combust, Wuhan 430074, Hubei, Peoples R China

[4] Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Hubei, Peoples R China

来源：

NANO ENERGY | 2018年 / 48卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Energy conversion; Capillary; Nanofluidics; Self-powered system; ELECTROKINETIC ENERGY-CONVERSION; WALLED CARBON NANOTUBES; NANOFLUIDIC CHANNELS; POWER-GENERATION; THERMOELECTRIC PERFORMANCE; GRAPHENE; NANOGENERATOR; TRANSPORT; LIQUID; CHARGE;

D O I：

10.1016/j.nanoen.2018.02.061

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Electricity generation from the interaction between water and carbon materials is a new approach in the pursuit of high-efficiency energy conversion. Here, we report that a water droplet dropping onto a piece of porous carbon film can spontaneously generate electricity under ambient conditions. Twelve 5-mu L water droplets can generate a voltage up to 5.2 V and illuminate a liquid crystal display. The voltage can be controlled by modulating the direction of the droplet infiltration, the zeta potential of the porous carbon, and the ion concentration. The results demonstrate that a hydrophilic porous carbon film with water droplets may function as a cost-effective electricity generator for harvesting energy from natural resources.

引用

页码：211 / 216

页数：6

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