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Ionic covalent organic framework based electrolyte for fast-response ultra-low voltage electrochemical actuators

Author

Listed:
  • Fei Yu

    (Nanyang Technological University)

  • Jing-Hao Ciou

    (Nanyang Technological University)

  • Shaohua Chen

    (Nanyang Technological University)

  • Wei Church Poh

    (Nanyang Technological University)

  • Jian Chen

    (Nanyang Technological University)

  • Juntong Chen

    (Nanyang Technological University)

  • Kongcharoen Haruethai

    (Nanyang Technological University)

  • Jian Lv

    (Nanyang Technological University
    Singapore-HUJ Alliance for Research and Enterprise (SHARE), Nanomaterials for Energy and Water Nexus (NEW), Campus for Research Excellence and Technological Enterprise (CREATE))

  • Dace Gao

    (Nanyang Technological University)

  • Pooi See Lee

    (Nanyang Technological University
    Singapore-HUJ Alliance for Research and Enterprise (SHARE), Nanomaterials for Energy and Water Nexus (NEW), Campus for Research Excellence and Technological Enterprise (CREATE))

Abstract

Electrically activated soft actuators with large deformability are important for soft robotics but enhancing durability and efficiency of electrochemical actuators is challenging. Herein, we demonstrate that the actuation performance of an ionic two-dimensional covalent-organic framework based electrochemical actuator is improved through the ordered pore structure of opening up efficient ion transport routes. Specifically, the actuator shows a large peak to peak displacement (9.3 mm, ±0.5 V, 1 Hz), a fast-response time to reach equilibrium-bending (~1 s), a correspondingly high bending strain difference (0.38%), a broad response frequency (0.1–20 Hz) and excellent durability (>99%) after 23,000 cycles. The present study ascertains the functionality of soft electrolyte as bionic artificial actuators while providing ideas for expanding the limits in applications for robots.

Suggested Citation

  • Fei Yu & Jing-Hao Ciou & Shaohua Chen & Wei Church Poh & Jian Chen & Juntong Chen & Kongcharoen Haruethai & Jian Lv & Dace Gao & Pooi See Lee, 2022. "Ionic covalent organic framework based electrolyte for fast-response ultra-low voltage electrochemical actuators," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-28023-2
    DOI: 10.1038/s41467-022-28023-2
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    References listed on IDEAS

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    1. Daniela Rus & Michael T. Tolley, 2015. "Design, fabrication and control of soft robots," Nature, Nature, vol. 521(7553), pages 467-475, May.
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    1. Zhaoqi Liu & Yunzhi Huang & Yuxiang Shi & Xinglin Tao & Hezhi He & Feida Chen & Zhao-Xia Huang & Zhong Lin Wang & Xiangyu Chen & Jin-Ping Qu, 2022. "Fabrication of triboelectric polymer films via repeated rheological forging for ultrahigh surface charge density," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Van Hiep Nguyen & Saewoong Oh & Manmatha Mahato & Rassoul Tabassian & Hyunjoon Yoo & Seong-Gyu Lee & Mousumi Garai & Kwang Jin Kim & Il-Kwon Oh, 2024. "Functionally antagonistic polyelectrolyte for electro-ionic soft actuator," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    3. Benbing Shi & Xiao Pang & Shunning Li & Hong Wu & Jianliang Shen & Xiaoyao Wang & Chunyang Fan & Li Cao & Tianhao Zhu & Ming Qiu & Zhuoyu Yin & Yan Kong & Yiqin Liu & Mingzheng Zhang & Yawei Liu & Fen, 2022. "Short hydrogen-bond network confined on COF surfaces enables ultrahigh proton conductivity," Nature Communications, Nature, vol. 13(1), pages 1-9, December.

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