Polypyrrole-based hybrid nanostructures grown on textile for wearable supercapacitors

In the development of wearable energy devices, polypyrrole (PPy) is considered as a promising electrode material owing to its high capacitance and good mechanical flexibility. Herein, we report a PPy-based hybrid structure consisting of vertical PPy nanotube arrays and carbon nano-onions (CNOs) grow...

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Bibliographic Details
Published in:Nano research 2019-05, Vol.12 (5), p.1129-1137
Main Authors: Wang, Lingchang, Zhang, Chenguang, Jiao, Xin, Yuan, Zhihao
Format: Article
Language:English
Subjects:
Atomic/Molecular Structure and Spectra
Biomedicine
Biotechnology
Capacitance
Chemistry and Materials Science
Condensed Matter Physics
Electrode materials
Electrodes
Energy storage
Hybrid structures
Ion transport
Materials Science
Nanostructure
Nanotechnology
Nanotubes
Polymerization
Polypyrroles
Power supplies
Research Article
Stretching
Supercapacitors
Wearable technology
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Summary:In the development of wearable energy devices, polypyrrole (PPy) is considered as a promising electrode material owing to its high capacitance and good mechanical flexibility. Herein, we report a PPy-based hybrid structure consisting of vertical PPy nanotube arrays and carbon nano-onions (CNOs) grown on textile for wearable supercapacitors. In this hybrid nanostructure, the vertical PPy nanotubes provide straight and superhighways for electron and ion transport, boosting the energy storage; while the CNOs mainly act as a conductivity retainer for the underlayered PPy film during stretching. A facile template-degrading method is developed for the large-area growth of the PPy-based hybrid nanostructures on the textile through one-step polymerization process. The fabricated stretchable supercapacitor exhibits superior energy storage capacitance with the specific capacitance of 64 F·g −1 . Also, it presents the high capacitance retention of 99% at a strain of 50% after 500 stretching cycles. Furthermore, we demonstrate that the textile-based stretchable supercapacitor device can provide a stable energy storage performance in different wearable situations for practical applications. The use of the PPy-based hybrid nanostructures as the supercapacitor electrode offers a novel structure design and a promising opportunity for wearable power supply in real applications.
ISSN:1998-0124
1998-0000
DOI:10.1007/s12274-019-2360-5