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Issue 45, 2018, Issue in Progress
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Flexible polypyrrolone-based microporous carbon nanofibers for high-performance supercapacitors

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Abstract

Flexible materials have drawn considerable attention due to the demand for wearable and flexible electronic products. Seeking new kinds of precursors for preparing carbon nanofibers with good flexibility for high-performance supercapacitors is a hot issue. In this work, a flexible polypyrrolone (BBB)/polyimide (PI) composite-based carbon nanofiber membrane (PBPICF) is prepared by a facile electrospinning and carbonization process. The PBPICF membranes exhibit a three-dimensional (3D) porous, fluffy and self-standing structure with good mechanical performance and flexibility, and can be arbitrarily bent and folded. PBPICF-65-35 (consisting of BBB (65 wt%) and PI (35 wt%)) exhibits a high specific capacitance of 172.44 F g−1 in 6 M KOH aqueous solution, which is two-fold more than that of commercial polyacrylonitrile-based carbon nanofibers. In addition, PBPICF-65-35 also displays good power density (90 W kg−1) and energy density (19.4 W h kg−1), and the capacitance remains at 96% even after 10 000 cycles at 1.0 A g−1. Therefore, the simple preparation and good capacitance performance of PBPICFs make them a promising binder-free electrode for wearable supercapacitors.

Graphical abstract: Flexible polypyrrolone-based microporous carbon nanofibers for high-performance supercapacitors

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Publication details

The article was received on 25 May 2018, accepted on 07 Jul 2018 and first published on 17 Jul 2018


Article type: Paper
DOI: 10.1039/C8RA04479A
RSC Adv., 2018,8, 25568-25574
  • Open access: Creative Commons BY-NC license
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    Flexible polypyrrolone-based microporous carbon nanofibers for high-performance supercapacitors

    S. Liu, Y. Zeng, H. Fang, Q. Guo, L. Sui and H. Hou, RSC Adv., 2018, 8, 25568
    DOI: 10.1039/C8RA04479A

    This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

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