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A flexible electromagnetic wave-electricity harvester

Author

Listed:
  • Hualiang Lv

    (Fudan University)

  • Zhihong Yang

    (Nanjing University of Aeronautics and Astronautics)

  • Bo Liu

    (Hunan University)

  • Guanglei Wu

    (Qingdao University)

  • Zhichao Lou

    (Nanjing Forestry University)

  • Ben Fei

    (Fudan University)

  • Renbing Wu

    (Fudan University)

Abstract

Developing an ultimate electromagnetic (EM)-absorbing material that can not only dissipate EM energy but also convert the generated heat into electricity is highly desired but remains a significant challenge. Here, we report a hybrid Sn@C composite with a biological cell-like splitting ability to address this challenge. The composite consisting of Sn nanoparticles embedded within porous carbon would split under a cycled annealing treatment, leading to more dispersed nanoparticles with an ultrasmall size. Benefiting from an electron-transmitting but a phonon-blocking structure created by the splitting behavior, an EM wave-electricity device constructed by the optimum Sn@C composite could achieve an efficiency of EM to heat at widely used frequency region and a maximum thermoelectric figure of merit of 0.62 at 473 K, as well as a constant output voltage and power under the condition of microwave radiation. This work provides a promising solution for solving EM interference with self-powered EM devices.

Suggested Citation

  • Hualiang Lv & Zhihong Yang & Bo Liu & Guanglei Wu & Zhichao Lou & Ben Fei & Renbing Wu, 2021. "A flexible electromagnetic wave-electricity harvester," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-21103-9
    DOI: 10.1038/s41467-021-21103-9
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    Cited by:

    1. Vidal, João V. & Rolo, Pedro & Carneiro, Pedro M.R. & Peres, Inês & Kholkin, Andrei L. & Soares dos Santos, Marco P., 2022. "Automated electromagnetic generator with self-adaptive structure by coil switching," Applied Energy, Elsevier, vol. 325(C).
    2. Tian, Yu & Ren, Guang-Kun & Wei, Zhijie & Zheng, Zhe & Deng, Shunjie & Ma, Li & Li, Yuansen & Zhou, Zhifang & Chen, Xiaohong & Shi, Yan & Lin, Yuan-Hua, 2024. "Advances of thermoelectric power generation for room temperature: Applications, devices, materials and beyond," Renewable Energy, Elsevier, vol. 226(C).

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