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Quantifying electron-transfer in liquid-solid contact electrification and the formation of electric double-layer

Author

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  • Shiquan Lin

    (Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences
    School of Nanoscience and Technology, University of Chinese Academy of Sciences)

  • Liang Xu

    (Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences
    School of Nanoscience and Technology, University of Chinese Academy of Sciences)

  • Aurelia Chi Wang

    (School of Materials Science and Engineering, Georgia Institute of Technology)

  • Zhong Lin Wang

    (Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences
    School of Nanoscience and Technology, University of Chinese Academy of Sciences
    School of Materials Science and Engineering, Georgia Institute of Technology)

Abstract

Contact electrification (CE) has been known for more than 2600 years but the nature of charge carriers and their transfer mechanisms still remain poorly understood, especially for the cases of liquid–solid CE. Here, we study the CE between liquids and solids and investigate the decay of CE charges on the solid surfaces after liquid–solid CE at different thermal conditions. The contribution of electron transfer is distinguished from that of ion transfer on the charged surfaces by using the theory of electron thermionic emission. Our study shows that there are both electron transfer and ion transfer in the liquid–solid CE. We reveal that solutes in the solution, pH value of the solution and the hydrophilicity of the solid affect the ratio of electron transfers to ion transfers. Further, we propose a two-step model of electron or/and ion transfer and demonstrate the formation of electric double-layer in liquid–solid CE.

Suggested Citation

  • Shiquan Lin & Liang Xu & Aurelia Chi Wang & Zhong Lin Wang, 2020. "Quantifying electron-transfer in liquid-solid contact electrification and the formation of electric double-layer," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-019-14278-9
    DOI: 10.1038/s41467-019-14278-9
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    Cited by:

    1. Fan, Kangqi & Chen, Chenggen & Zhang, Baosen & Li, Xiang & Wang, Zhen & Cheng, Tinghai & Lin Wang, Zhong, 2022. "Robust triboelectric-electromagnetic hybrid nanogenerator with maglev-enabled automatic mode transition for exploiting breeze energy," Applied Energy, Elsevier, vol. 328(C).
    2. Shiquan Lin & Laipan Zhu & Zhen Tang & Zhong Lin Wang, 2022. "Spin-selected electron transfer in liquid–solid contact electrification," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    3. Chen, Rui & Qiu, Qinpan & Peng, Xiao & Tang, Chao, 2023. "Surface modified h-BN towards enhanced electrical properties and thermal conductivity of natural ester insulating oil," Renewable Energy, Elsevier, vol. 204(C), pages 185-196.
    4. Song Zhang & Mingchao Chi & Jilong Mo & Tao Liu & Yanhua Liu & Qiu Fu & Jinlong Wang & Bin Luo & Ying Qin & Shuangfei Wang & Shuangxi Nie, 2022. "Bioinspired asymmetric amphiphilic surface for triboelectric enhanced efficient water harvesting," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    5. Ziming Wang & Xuanli Dong & Xiao-Fen Li & Yawei Feng & Shunning Li & Wei Tang & Zhong Lin Wang, 2024. "A contact-electro-catalysis process for producing reactive oxygen species by ball milling of triboelectric materials," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    6. Jiayue Tang & Yuanyuan Zhao & Mi Wang & Dianyu Wang & Xuan Yang & Ruiran Hao & Mingzhan Wang & Yanlei Wang & Hongyan He & John H. Xin & Shuang Zheng, 2022. "Circadian humidity fluctuation induced capillary flow for sustainable mobile energy," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    7. Zhipeng Zhao & Huizeng Li & An Li & Wei Fang & Zheren Cai & Mingzhu Li & Xiqiao Feng & Yanlin Song, 2021. "Breaking the symmetry to suppress the Plateau–Rayleigh instability and optimize hydropower utilization," Nature Communications, Nature, vol. 12(1), pages 1-7, December.

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