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

• المؤلفون الرئيسيون: Yu, Fei, Ciou, Jing-Hao, Chen, Shaohua, Poh, Wei Church, Chen, Jian, Chen, Juntong, Haruethai, Kongcharoen, Lv, Jian, Gao, Dace, Lee, Pooi See
• مؤلفون آخرون: School of Materials Science and Engineering
• التنسيق: مقال
• اللغة: English
• منشور في: 2022
• الموضوعات: Engineering::Materials; Electrolyte; Electrochemical Method
• الوصول للمادة أونلاين: https://hdl.handle.net/10356/160411

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.