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Issue 45, 2017
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In situ nitrogen-doped mesoporous carbon nanofibers as flexible freestanding electrodes for high-performance supercapacitors

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Abstract

Herein we propose a low-cost, one-step synthesis of magnesium hydroxide (Mg(OH)2) that is deposited on polyacrylonitrile (PAN) nanofibers by electrospinning. Following carbonization and etching, an in situ N-doped mesoporous carbon nanofiber (N-MCNF) network is synthesized. The synthesized flexible network is employed as a freestanding electrode for supercapacitors. The as-constructed supercapacitor based on the N-MCNFs prepared at 900 °C (N-MCNFs-900) can deliver excellent performance with an ultrahigh specific capacitance of 327.3 F g−1 at a current density of 1.0 A g−1, and remarkable cycling stability, e.g., only about 7% loss after 10 000 cycles at a constant high charging–discharging current of 20 A g−1 in 6 M KOH aqueous electrolyte. The flexible network consisting of N-MCNFs-900 as the electrode material with long cycling stability is highly promising for next-generation high-performance supercapacitors.

Graphical abstract: In situ nitrogen-doped mesoporous carbon nanofibers as flexible freestanding electrodes for high-performance supercapacitors

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Publication details

The article was received on 09 Aug 2017, accepted on 17 Oct 2017 and first published on 18 Oct 2017


Article type: Paper
DOI: 10.1039/C7TA07024A
Citation: J. Mater. Chem. A, 2017,5, 23620-23627
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    In situ nitrogen-doped mesoporous carbon nanofibers as flexible freestanding electrodes for high-performance supercapacitors

    J. Tan, Y. Han, L. He, Y. Dong, X. Xu, D. Liu, H. Yan, Q. Yu, C. Huang and L. Mai, J. Mater. Chem. A, 2017, 5, 23620
    DOI: 10.1039/C7TA07024A

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