Volume 4, Issue 3 e206
REVIEW
Open Access

New paradigms of water-enabled electrical energy generation

Zhengtong Li

Zhengtong Li

The National Key Laboratory of Water Disaster Prevention, Yangtze Institute for Conservation and Development, State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, China

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Tao Yang

Corresponding Author

Tao Yang

The National Key Laboratory of Water Disaster Prevention, Yangtze Institute for Conservation and Development, State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, China

Correspondence

Tao Yang, The National Key Laboratory of Water Disaster Prevention, Yangtze Institute for Conservation and Development, State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China.

Email: [email protected]

Yusuke Yamauchi and Xingtao Xu, Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8601, Japan.

Email: [email protected] and [email protected]

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Jia-Han Zhang

Jia-Han Zhang

School of Electronic Information Engineering, Inner Mongolia University, Hohhot, China

Collaborative Innovation Center of Advanced Microstructures, School of Electronic Science and Engineering, Nanjing University, Nanjing, China

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Taotao Meng

Taotao Meng

College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, China

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Saad Melhi

Saad Melhi

Department of Chemistry, College of Science, University of Bisha, Bisha, Saudi Arabia

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Jungmok You

Jungmok You

Department of Plant & Environmental New Resources, College of Life Sciences, Kyung Hee University, Yongin-si, Gyeonggi-do, South Korea

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Miharu Eguchi

Miharu Eguchi

Department of Applied Chemistry, School of Advanced Science and Engineering, Waseda University, Shinjuku-ku, Tokyo, Japan

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Likun Pan

Likun Pan

Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai, China

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Yusuke Yamauchi

Corresponding Author

Yusuke Yamauchi

Department of Plant & Environmental New Resources, College of Life Sciences, Kyung Hee University, Yongin-si, Gyeonggi-do, South Korea

School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland, Australia

Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan

Correspondence

Tao Yang, The National Key Laboratory of Water Disaster Prevention, Yangtze Institute for Conservation and Development, State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China.

Email: [email protected]

Yusuke Yamauchi and Xingtao Xu, Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8601, Japan.

Email: [email protected] and [email protected]

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Xingtao Xu

Corresponding Author

Xingtao Xu

Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan

Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, Zhejiang, China

Correspondence

Tao Yang, The National Key Laboratory of Water Disaster Prevention, Yangtze Institute for Conservation and Development, State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China.

Email: [email protected]

Yusuke Yamauchi and Xingtao Xu, Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8601, Japan.

Email: [email protected] and [email protected]

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First published: 10 June 2024
Citations: 2

Abstract

Nanotechnology-inspired small-sized water-enabled electricity generation (WEG) has sparked widespread research interest, especially when applied as an electricity source for off-grid low-power electronic equipment and systems. Currently, WEG encompasses a wide range of physical phenomena, generator structures, and power generation environments. However, a systematic framework to clearly describe the connections and differences between these technologies is unavailable. In this review, a comprehensive overview of generator technologies and the typical mechanisms for harvesting water energy is provided. Considering the different roles of water in WEG processes, the related technologies are presented as two different scenarios. Moreover, a detailed analysis of the electrical potential formation in each WEG process is presented, and their similarities and differences are elucidated. Furthermore, a comprehensive compilation of advanced generator architectures and system designs based on hydrological cycle processes is presented, along with their respective energy efficiencies. These nanotechnology-inspired small-sized WEG devices show considerable potential for applications in the Internet of Things ecosystem (i.e., microelectronic devices, integrated circuits, and smart clothing). Finally, the prospects and future challenges of WEG devices are also summarized.

CONFLICT OF INTEREST STATEMENT

The authors declare no conflict of interest.

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