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Research Article

Scalable rolling-structured triboelectric nanogenerator with high power density for water wave energy harvesting toward marine environmental monitoring

Yuxue Duan1,2,§, Hongxuan Xu2,3,§, Shijie Liu2,4,§, Pengfei Chen2,4, Xiangyi Wang2,4, Liang Xu2,4( ), Tao Jiang1,2,3,4( ), Zhong Lin Wang2,3,5( )
School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-Nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
College of Engineering, Zhejiang Normal University, Jinhua 321004, China
School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
Georgia Institute of Technology, Atlanta, GA 30332-0245, USA

§ Yuxue Duan, Hongxuan Xu, and Shijie Liu contributed equally to this work.

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Graphical Abstract

The scalable rolling-structured triboelectric nanogenerators (SR-TENGs) are further optimized for effectively harvesting low-frequency water wave energy. In actual water waves, the SR-TENG can deliver a maximum peak power density of 80.29 W∙m−3 and an average power density of 6.02 W∙m−3, which are much greater than those of most water wave-driven TENGs.

Abstract

In the context of advocating a green and low-carbon era, ocean energy, as a renewable strategic resource, is an important part of planning and building a new energy system. Triboelectric nanogenerator (TENG) arrays provide feasible and efficient routes for large-scale harvesting of ocean energy. In previous work, a spherical rolling-structured TENG with three-dimensional (3D) electrodes based on rolling motion of dielectric pellets was designed and fabricated for effectively harvesting low-frequency water wave energy. In this work, the external shape of the scalable rolling-structured TENG (SR-TENG) and internal filling amount of pellets were mainly optimized, achieving an average power density of 10.08 W∙m−3 under regular triggering. In actual water waves, the SR-TENG can deliver a maximum peak power density of 80.29 W∙m−3 and an average power density of 6.02 W∙m−3, which are much greater than those of most water wave-driven TENGs. Finally, through a power management, an SR-TENG array with eight units was demonstrated to successfully power portable electronic devices for monitoring the marine environment. The SR-TENGs could promote the development and utilization of ocean blue energy, providing a new paradigm for realizing the carbon neutrality goal.

Keywords

triboelectric nanogeneratorscalable rolling-structuredwater wave energy harvestingblue energymarine environmental monitoring

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Nano Research
Volume 16 Issue 9,
September 2023
Pages 11646-11652
DOI: 10.1007/s12274-023-6035-x
Cite this article:
Duan Y, Xu H, Liu S, et al. Scalable rolling-structured triboelectric nanogenerator with high power density for water wave energy harvesting toward marine environmental monitoring. Nano Research, 2023, 16(9): 11646-11652. https://doi.org/10.1007/s12274-023-6035-x
Topics:
Nanogenerators Renewable energy resources
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Nineth Nano Research Award

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Received: 20 May 2023
Revised: 25 June 2023
Accepted: 21 July 2023
Published: 14 August 2023
© Tsinghua University Press 2023
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