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Enhancing hydrovoltaic power generation through heat conduction effects

Author

Listed:
  • Lianhui Li

    (Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS))

  • Sijia Feng

    (Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS))

  • Yuanyuan Bai

    (Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS))

  • Xianqing Yang

    (Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS))

  • Mengyuan Liu

    (Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS))

  • Mingming Hao

    (Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS))

  • Shuqi Wang

    (Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS))

  • Yue Wu

    (Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS))

  • Fuqin Sun

    (Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS))

  • Zheng Liu

    (Nanyang Technological University)

  • Ting Zhang

    (Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS)
    Chinese Academy of Sciences (CAS)
    Gusu laboratory of materials)

Abstract

Restricted ambient temperature and slow heat replenishment in the phase transition of water molecules severely limit the performance of the evaporation-induced hydrovoltaic generators. Here we demonstrate a heat conduction effect enhanced hydrovoltaic power generator by integrating a flexible ionic thermoelectric gelatin material with a porous dual-size Al2O3 hydrovoltaic generator. In the hybrid heat conduction effect enhanced hydrovoltaic power generator, the ionic thermoelectric gelatin material can effectively improve the heat conduction between hydrovoltaic generator and near environment, thus increasing the water evaporation rate to improve the output voltage. Synergistically, hydrovoltaic generator part with continuous water evaporation can induce a constant temperature difference for the thermoelectric generator. Moreover, the system can efficiently achieve solar-to-thermal conversion to raise the temperature difference, accompanied by a stable open circuit voltage of 6.4 V for the hydrovoltaic generator module, the highest value yet.

Suggested Citation

  • Lianhui Li & Sijia Feng & Yuanyuan Bai & Xianqing Yang & Mengyuan Liu & Mingming Hao & Shuqi Wang & Yue Wu & Fuqin Sun & Zheng Liu & Ting Zhang, 2022. "Enhancing hydrovoltaic power generation through heat conduction effects," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-28689-8
    DOI: 10.1038/s41467-022-28689-8
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    References listed on IDEAS

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    Cited by:

    1. Xu Xin & Youzi Zhang & Ruiling Wang & Yijin Wang & Peng Guo & Xuanhua Li, 2023. "Hydrovoltaic effect-enhanced photocatalysis by polyacrylic acid/cobaltous oxide–nitrogen doped carbon system for efficient photocatalytic water splitting," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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