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首页> 外文期刊>Advanced Functional Materials >Collectively Exhaustive Electrodes Based on Covalent Organic Framework and Antagonistic Co-Doping for Electroactive Ionic Artificial Muscles
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Collectively Exhaustive Electrodes Based on Covalent Organic Framework and Antagonistic Co-Doping for Electroactive Ionic Artificial Muscles

机译：基于共价有机骨架和拮抗共掺杂的电活性离子人工肌肉的集体耗竭电极

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摘要

In this study, high-performance ionic soft actuators are developed for the first time using collectively exhaustive boron and sulfur co-doped porous carbon electrodes (BS-COF-Cs), derived from thiophene-based boronate-linked covalent organic framework (T-COF) as a template. The one-electron deficiency of boron compared to carbon leads to the generation of hole charge carriers, while sulfur, owing to its high electron density, creates electron carriers in BS-COF-C electrodes. This antagonistic functionality of BS-COF-C electrodes assists the charge-transfer rate, leading to fast charge separation in the developed ionic soft actuator under alternating current input signals. Furthermore, the hierarchical porosity, high surface area, and synergistic effect of co-doping of the BS-COF-Cs play crucial roles in offering effective interaction of BS-COF-Cs with poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS), leading to the generation of high electro-chemomechanical performance of the corresponding composite electrodes. Finally, the developed ionic soft actuator based on the BS-COF-C electrode exhibits large bending strain (0.62%), excellent durability (90% retention for 6 hours under operation), and 2.7 times higher bending displacement than PEDOT:PSS under extremely low harmonic input of 0.5 V. This study reveals that the antagonistic functionality of heteroatom co-doped electrodes plays a crucial role in accelerating the actuation performance of ionic artificial muscles.
机译：在这项研究中，首次使用从基于噻吩的硼酸酯连接的共价有机骨架（T-噻吩）衍生出来的集体耗竭的硼和硫共掺杂多孔碳电极（BS-COF-Cs），首次开发了高性能离子软执行器。 COF）作为模板。与碳相比，硼的单电子缺陷导致产生空穴载流子，而硫由于其高电子密度而在BS-COF-C电极中产生电子载流子。 BS-COF-C电极的这种拮抗功能有助于电荷转移速率，从而在交流输入信号下，在已开发的离子软致动器中实现快速电荷分离。此外，BS-COF-C的分层孔隙率，高表面积和共掺杂的协同效应在提供BS-COF-C与聚（3,4-乙撑二氧噻吩）聚苯乙烯磺酸盐（PEDOT）的有效相互作用中起着至关重要的作用。 ：PSS），导致相应复合电极具有较高的电化学性能。最后，基于BS-COF-C电极的已开发离子软致动器显示出大的弯曲应变（0.62％），出色的耐用性（在运行6小时内保持90％的保持力），并且在极端条件下的弯曲位移比PEDOT：PSS高2.7倍0.5 V的低谐波输入。这项研究表明，杂原子共掺杂电极的拮抗功能在加速离子人工肌肉的驱动性能方面起着至关重要的作用。

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  • 来源
    《Advanced Functional Materials》 |2019年第17期|1900161.1.-1808989.10|共10页
  • 作者

    Roy Sandipan; Kim Jaehwan; Kotal Moumita; Tabassian Rassoul; Kim Kwang J.; Oh Il-Kwon;

  • 作者单位

    Korea Adv Inst Sci & Technol, Dept Mech Engn, Creat Res Initiat Ctr Functionally Antagonist Nan, 291 Daehak Ro, Daejeon 34141, South Korea|Maharishi Markandeshwar Deemed Be Univ, Dept Chem, Ambala 133207, Haryana, India;

    Korea Adv Inst Sci & Technol, Dept Mech Engn, Creat Res Initiat Ctr Functionally Antagonist Nan, 291 Daehak Ro, Daejeon 34141, South Korea;

    Korea Adv Inst Sci & Technol, Dept Mech Engn, Creat Res Initiat Ctr Functionally Antagonist Nan, 291 Daehak Ro, Daejeon 34141, South Korea|Maharishi Markandeshwar Deemed Be Univ, Dept Chem, Ambala 133207, Haryana, India;

    Korea Adv Inst Sci & Technol, Dept Mech Engn, Creat Res Initiat Ctr Functionally Antagonist Nan, 291 Daehak Ro, Daejeon 34141, South Korea;

    Univ Nevada, Dept Mech Engn, 4505 Maryland Pkwy, Las Vegas, NV 89154 USA;

    Korea Adv Inst Sci & Technol, Dept Mech Engn, Creat Res Initiat Ctr Functionally Antagonist Nan, 291 Daehak Ro, Daejeon 34141, South Korea;

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  • 正文语种 eng
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  • 关键词

    antagonistic; artificial muscles; covalent organic framework; hierarchical porosity; supercapacitors; synergistic;

    机译：拮抗;人造肌肉;共价有机骨架;分层孔隙;超级电容器;协同;

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