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Electrochemical graphene/carbon nanotube yarn artificial muscles

Title
Electrochemical graphene/carbon nanotube yarn artificial muscles
Author
김선정
Keywords
Artificial muscles; Carbon nanotubes; Graphene; Electrochemical actuators; Supercapacitors
Issue Date
2019-05
Publisher
ELSEVIER SCIENCE SA
Citation
SENSORS AND ACTUATORS B-CHEMICAL, v. 286, Page. 237-242
Abstract
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.
URI
https://www.sciencedirect.com/science/article/pii/S0925400519301686?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/121973
ISSN
0925-4005
DOI
10.1016/j.snb.2019.01.140
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRICAL AND BIOMEDICAL ENGINEERING(전기·생체공학부) > Articles
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