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Sustainable power generation for at least one month from ambient humidity using unique nanofluidic diode

Author

Listed:
  • Yong Zhang

    (Tribology Research Institute, School of Mechanical Engineering, Southwest Jiaotong University)

  • Tingting Yang

    (Tribology Research Institute, School of Mechanical Engineering, Southwest Jiaotong University)

  • Kedong Shang

    (Tribology Research Institute, School of Mechanical Engineering, Southwest Jiaotong University)

  • Fengmei Guo

    (Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University)

  • Yuanyuan Shang

    (Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University)

  • Shulong Chang

    (Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University)

  • Licong Cui

    (Tribology Research Institute, School of Mechanical Engineering, Southwest Jiaotong University)

  • Xulei Lu

    (Tribology Research Institute, School of Mechanical Engineering, Southwest Jiaotong University)

  • Zhongbao Jiang

    (Tribology Research Institute, School of Mechanical Engineering, Southwest Jiaotong University)

  • Jian Zhou

    (Tribology Research Institute, School of Mechanical Engineering, Southwest Jiaotong University)

  • Chunqiao Fu

    (Tribology Research Institute, School of Mechanical Engineering, Southwest Jiaotong University)

  • Qi-Chang He

    (Tribology Research Institute, School of Mechanical Engineering, Southwest Jiaotong University
    MSME, Univ Gustave Eiffel, CNRS UMR 8208)

Abstract

The continuous energy-harvesting in moisture environment is attractive for the development of clean energy source. Controlling the transport of ionized mobile charge in intelligent nanoporous membrane systems is a promising strategy to develop the moisture-enabled electric generator. However, existing designs still suffer from low output power density. Moreover, these devices can only produce short-term (mostly a few seconds or a few hours, rarely for a few days) voltage and current output in the ambient environment. Here, we show an ionic diode–type hybrid membrane capable of continuously generating energy in the ambient environment. The built-in electric field of the nanofluidic diode-type PN junction helps the selective ions separation and the steady-state one-way ion charge transfer. This directional ion migration is further converted to electron transportation at the surface of electrodes via oxidation-reduction reaction and charge adsorption, thus resulting in a continuous voltage and current with high energy conversion efficiency.

Suggested Citation

  • Yong Zhang & Tingting Yang & Kedong Shang & Fengmei Guo & Yuanyuan Shang & Shulong Chang & Licong Cui & Xulei Lu & Zhongbao Jiang & Jian Zhou & Chunqiao Fu & Qi-Chang He, 2022. "Sustainable power generation for at least one month from ambient humidity using unique nanofluidic diode," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-31067-z
    DOI: 10.1038/s41467-022-31067-z
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    References listed on IDEAS

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    Cited by:

    1. Su Yang & Lei Zhang & Jianfeng Mao & Jianmiao Guo & Yang Chai & Jianhua Hao & Wei Chen & Xiaoming Tao, 2024. "Green moisture-electric generator based on supramolecular hydrogel with tens of milliamp electricity toward practical applications," Nature Communications, Nature, vol. 15(1), pages 1-13, December.

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