Gas-liquid two-phase flow-based triboelectric nanogenerator with ultrahigh output power

被引：59

作者：

Dong, Yang ^{[1
,2
,3
]}

Xu, Shiwei ^{[1
,4
]}

Zhang, Chi ^{[2
]}

Zhang, Liqiang ^{[1
,4
]}

Wang, Daoai ^{[1
,4
]}

Xie, Yuanyuan ^{[2
]}

Luo, Ning ^{[1
]}

Feng, Yange ^{[1
,4
]}

Wang, Nannan ^{[1
]}

Feng, Min ^{[1
]}

Zhang, Xiaolong ^{[3
]}

Zhou, Feng ^{[1
]}

Wang, Zhong Lin ^{[2
,5
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China

[2] Chinese Acad Sci, Beijing Inst Nanoenergy & Nanosyst, CAS Ctr Excellence Nanosci, Beijing Key Lab Micronano Energy & Sensor, Beijing 101400, Peoples R China

[3] China Three Gorges Univ, Hubei Key Lab Hydroelect Machinery Design & Mainte, Yichang 443002, Peoples R China

[4] Qingdao Ctr Resource Chem & New Mat, Qingdao 266100, Peoples R China

[5] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

来源：

SCIENCE ADVANCES | 2022年 / 8卷 / 48期

基金：

中国国家自然科学基金;

关键词：

WATER-WAVE ENERGY; CONTACT-ELECTRIFICATION;

D O I：

10.1126/sciadv.add0464

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Solid-liquid triboelectric nanogenerators (SL-TENGs) have shown promising prospects in energy harvesting and application from water resources. However, the low contact separation speed, small contact area, and long contacting time during solid-liquid electrification severely limit their output properties and further applications. Here, by leveraging the rheological properties of gas-liquid two-phase flow and the Venturi-like design, we circumvent these limitations and develop a previously unknown gas-liquid two-phase flow-based TENG (GL-TENG) that can achieve ultrahigh voltage and volumetric charge density of 3789 volts and 859 millicoulombs per cubic meter, respectively. With a high-power output of 143.6 kilowatts per cubic meter, a 24-watt commercial lamp can be directly lighted by a continuous-flow GL-TENG device. The high performance displayed SL-TENGs in this work provides a promising strategy for the practical application of solid-liquid TENGs in energy harvesting and sensing applications.

引用

页数：10

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