Electrochemical graphene/carbon nanotube yarn artificial muscles

SENSORS AND ACTUATORS B-CHEMICAL

卷:286

Article

Hyeon, Jae Sang¹  Park, Jong Woo¹  Baughman, Ray H.²  Kim, Seon Jeong¹ 

[1] Hanyang Univ, Dept Biomed Engn, Ctr Self Powered Actuat, Seoul 04763, South Korea

[2] Univ Texas Dallas, Alan G MacDiarmid NanoTech Inst, Richardson, TX 75080 USA

关键词: Artificial muscles;    Carbon nanotubes;    Graphene;    Electrochemical actuators;    Supercapacitors;   

DOI  :  10.1016/j.snb.2019.01.140

来源: Elsevier

【 摘 要 】

Fiber-type artificial muscles similar to natural muscles are being studied for applications such as robots, prosthetics and exoskeletons. In particular, carbon nanotube (CNT) yarn artificial muscles have attracted interest for their unique mechanical and electrical properties as electrochemical artificial muscles. Here, we demonstrate the large tensile stroke of CNT-based electrochemical yarn artificial muscles induced by increasing capacitance. The coiled graphene/CNT yarns made by the biscrolling method can produce greater tensile actuation using more ions at the same voltage than pristine CNT coils. The maximum tensile actuation of these electrochemical muscles is 19%, which is two times larger than coiled CNT muscles with a work capacity of 2.6 J g(-1). These electrochemical artificial muscles could be further developed for practical applications, such as micromechanical devices and robotics.

【 授权许可】

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