High performance, flexible and renewable nano-biocomposite artificial muscle based on mesoporous cellulose/ ionic liquid electrolyte membrane
High performance, flexible and renewable nano-biocomposite artificial muscle based on mesoporous cellulose/ ionic liquid electrolyte membrane
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DOI：
10.1016/j.snb.2018.12.073
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发表时间：
2019-03-15
影响因子：
8.4
通讯作者：
Song, Wenlong
中科院分区：
文献类型：
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作者：
Sun, Zhuangzhi;Yang, Lu;Song, Wenlong
本文以介孔可再生纤维素/离子液体（IL-Cel）电解质膜为基础，研制了一种柔性纳米生物复合人工肌肉，其孔隙率高达91.31%。通过溶液相分离工艺制造的IL-Cel电解质膜在柔性和离子转移效率方面表现出绝对优势，因此IL-Cel再生致动器在偏转位移和力方面表现出显着增强，其分别是传统DMAC/Li溶解纤维素（Dm-Cel）基致动器的4倍和2倍。良好的柔韧性（来自拉伸测试）和低表面电阻（在100 Ω内，来自SEM）也通过由没有再生物质的IL-Cel电解质膜组成的致动器（来自FT-IR和XRD）获得。以多壁碳纳米管为电极，Ac-Cel为聚合物电解质的固态双电层电容器的致动器在20 mV s（-1）时表现出最高的比电容890 mF g（-1），（0.098 Ω g（-1）），并且在10 A g（-1）下具有最低功率密度（149 W kg（-1））。结果表明，阴极偏转是在货车范德华力和负离子体积应变的作用下实现的。这些发现表明，开发的介孔IL-Cel基致动器在进一步研究高性能致动器方面具有很大的前景。
A flexible nano-biocomposite artificial muscle based on a mesoporous renewable cellulose/ionic liquid (IL-Cel) electrolyte membrane with high porosity of 91.31% was developed in this paper. The IL-Cel electrolyte membrane, fabricated by a solution-phase separation process, exhibited absolute advantages in flexibility and ion transfer efficiency, so IL-Cel regenerated actuators exhibited significant enhancement in the deflection displacement and force, which were 4 and 2 times greater than traditional DMAC/Li-dissolved cellulose (Dm-Cel)based actuators. Good flexibility (from the tensile test) and low surface resistance (within 100 Omega, from SEM) were also attained by actuators composed of an IL-Cel electrolyte membrane without regenerated substances (from FT-IR and XRD). Actuators with a solid-state electric double layer capacitor using multi-wall carbon nanotubes as electrodes and [Emim] Ac-Cel as the polymer electrolyte, exhibited the highest specific capacitance of 890 mF g(-1) at 20 mV s(-1), a lower internal resistance (0.098 Omega g(-1)) at range of 105 Hz-0.01 Hz, and the lowest power density (149 W kg(-1)) at 10 A g(-1). Results indicated that cathode deflection was achieved by the action of van der Waals force and anion volumetric strain. These findings suggest that the developed mesoporous IL-Cel based actuators hold great promise in the further study of high-performance actuators.