Graphitic carbon nitride nanosheet electrode-based high-performance ionic actuator

Guan Wu, Ying Hu, Yang Liu, Jingjing Zhao, Xueli Chen, Vincent Whoehling, Cédric Plesse, Giao T. M. Nguyen, Frédéric Vidal and Wei Chen ()
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Guan Wu: i-Lab, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences
Ying Hu: i-Lab, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences
Yang Liu: i-Lab, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences
Jingjing Zhao: i-Lab, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences
Xueli Chen: i-Lab, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences
Vincent Whoehling: Laboratoire de Physicochimie des Polymères et des Interfaces, Institut des Matériaux, Université de Cergy-Pontoise
Cédric Plesse: Laboratoire de Physicochimie des Polymères et des Interfaces, Institut des Matériaux, Université de Cergy-Pontoise
Giao T. M. Nguyen: Laboratoire de Physicochimie des Polymères et des Interfaces, Institut des Matériaux, Université de Cergy-Pontoise
Frédéric Vidal: Laboratoire de Physicochimie des Polymères et des Interfaces, Institut des Matériaux, Université de Cergy-Pontoise
Wei Chen: i-Lab, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences

Nature Communications, 2015, vol. 6, issue 1, 1-8

Abstract: Abstract Ionic actuators have attracted attention due to their remarkably large strain under low-voltage stimulation. Because actuation performance is mainly dominated by the electrochemical and electromechanical processes of the electrode layer, the electrode material and structure are crucial. Here, we report a graphitic carbon nitride nanosheet electrode-based ionic actuator that displays high electrochemical activity and electromechanical conversion abilities, including large specific capacitance (259.4 F g−1) with ionic liquid as the electrolyte, fast actuation response (0.5±0.03% in 300 ms), large electromechanical strain (0.93±0.03%) and high actuation stability (100,000 cycles) under 3 V. The key to the high performance lies in the hierarchical pore structure with dominant size

Date: 2015
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DOI: 10.1038/ncomms8258

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