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Issue 21, 2018
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Nitrogen-doped graphitic hierarchically porous carbon nanofibers obtained via bimetallic-coordination organic framework modification and their application in supercapacitors

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Abstract

Herein, N-doped graphitic hierarchically porous carbon nanofibers (NGHPCF) were prepared by electrospinning the composite of bimetallic-coordination metal–organic frameworks and polyacrylonitrile, followed by a pyrolysis and acid wash process. Control over the N content, specific surface area, and degree of graphitization of NGHPCF materials has been realized by adjusting the Co/Zn metal coordination content as well as the pyrolysis temperature. The obtained NGHPCF with a high specific surface area (623 m2 g−1) and nitrogen content (13.83 wt%) exhibit a high capacitance of 326 F g−1 at 0.5 A g−1. In addition, the capacitance of 170 F g−1 is still maintained at a high current density (40 A g−1); this indicates a high capacitance retention capability. Furthermore, a superb energy density (9.61 W h kg−1) is obtained with a high power density (62.4 W kg−1) using an organic electrolyte. These results fully illustrate that the prepared NGHPCF binder-free electrodes are promising candidates for high-performance supercapacitors.

Graphical abstract: Nitrogen-doped graphitic hierarchically porous carbon nanofibers obtained via bimetallic-coordination organic framework modification and their application in supercapacitors

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Publication details

The article was received on 03 Mar 2018, accepted on 03 May 2018 and first published on 04 May 2018


Article type: Paper
DOI: 10.1039/C8DT00823J
Citation: Dalton Trans., 2018,47, 7316-7326
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    Nitrogen-doped graphitic hierarchically porous carbon nanofibers obtained via bimetallic-coordination organic framework modification and their application in supercapacitors

    Y. Yao, P. Liu, X. Li, S. Zeng, T. Lan, H. Huang, X. Zeng and J. Zou, Dalton Trans., 2018, 47, 7316
    DOI: 10.1039/C8DT00823J

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