Spray-coated carbon nanotube carpets for creeping reduction of conducting polymer based artificial muscles

Abstract : It is often observed that during cyclic actuation conducting polymer based artificial muscles are continuously creeping from the initial movement range. One of the likely reasons of such behaviour is unbalanced charging during conducting polymer oxidation and reduction. In order to improve the actuation reversibility and subsequently the long time performance of ionic actuators, we suggest to use spray-coated carbon nanotube (CNT) carpets on the surface of the conducting polymer electrodes. We show that carbon nanotubes facilitate conducting polymer redox reaction and improve its reversibility. Consequently, in the long term, charge accumulation in the polymer film is avoided leading to significantly improved long term performance during cycling actuation.
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Nanotechnology, Institute of Physics, 2017, 28 (2), pp.025502. 〈10.1088/0957-4484/28/2/025502〉
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Aiva Simaite, Aude Delagarde, Bertrand Tondu, Philippe Souères, Emmanuel Flahaut, et al.. Spray-coated carbon nanotube carpets for creeping reduction of conducting polymer based artificial muscles. Nanotechnology, Institute of Physics, 2017, 28 (2), pp.025502. 〈10.1088/0957-4484/28/2/025502〉. 〈hal-01413022〉

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