Triboelectric Nanogenerator for Ocean Wave Graded Energy Harvesting and Condition Monitoring

被引:97
作者
Xu, Yuhong [1 ,2 ]
Yang, Weixiong [1 ,2 ]
Lu, Xiaohui [2 ]
Yang, Yanfei [1 ]
Li, Jianping [3 ]
Wen, Jianming [3 ]
Cheng, Tinghai [1 ,2 ,4 ]
Wang, Zhong Lin [1 ,4 ,5 ]
机构
[1] Chinese Acad Sci, Beijing Inst Nanoenergy & Nanosyst, Beijing 101400, Peoples R China
[2] Changchun Univ Technol, Sch Mechatron Engn, Changchun 130012, Jilin, Peoples R China
[3] Zhejiang Normal Univ, Coll Engn, Inst Precis Machinery & Smart Struct, Key Lab Intelligent Operat & Maintenance Technol, Jinhua 321004, Zhejiang, Peoples R China
[4] CUSTech Inst Technol, Wenzhou 325024, Zhejiang, Peoples R China
[5] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA
关键词
triboelectric nanogenerator; ocean wave; graded energy harvesting; double generation units; condition monitoring; GENERATION;
D O I
10.1021/acsnano.1c05685
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Using triboelectric nanogenerators (TENGs) to harvest blue energy in the ocean is advanced technology at present. In wave environments, the wave magnitude is constantly changing, so designing a TENG that can adjust the energy harvesting ability is necessary. Herein, a graded energy harvesting triboelectric nanogenerator (GEH-TENG) is fabricated, in which double generation units can operate in different transmission states to adapt to wave changes. Under small waves, the GEH-TENG is in the primary transmission state. Once waves are large enough, it enters the secondary transmission state, realizing graded energy harvesting to enhance power generation performance. Experiments show that when the input frequency is 1.0 Hz and the amplitude is 120 mm, the GEH-TENG can generate 0.7 mJ of energy in a single operation cycle, which is 2.3 times of it without grading. Moreover, it can be placed on the shore to monitor ocean wave conditions. An idea of graded energy harvesting is proposed in this study, and the proposal provides useful guidance for practical applications of TENGs in ocean wave condition monitoring.
引用
收藏
页码:16368 / 16375
页数:8
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