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Issue 34, 2017
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A facile template approach to nitrogen-doped hierarchical porous carbon nanospheres from polydopamine for high-performance supercapacitors

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Abstract

Nitrogen-doped hierarchical porous carbon nanospheres (NHPCNs) with mesoscale and microscale pores are reported herein for their application in high-performance supercapacitor electrode materials (SCMs). The NHPCNs were facilely prepared via the carbonization of mesoporous polydopamine nanospheres (MPNSs) fabricated by one-step self-polymerization of dopamine using Pluronic F127 as a soft template. The influence of polymerization and carbonation temperatures on the morphologies, structures, and capacitor performances of the as-prepared NHPCNs was investigated systematically. The specific surface area of the NHPCNs can be achieved as high as 1725 m2 g−1, together with a pore volume of 1.85 cm3 g−1. Due to their unique structure, the NHPCNs can act as high-performance SCMs and exhibit high charge storage capacity with a high specific capacitance of 433 F g−1 in 6 M KOH at a current density of 0.5 A g−1 and excellent stability with 95.7% of the initial capacitance after 10 000 cycles.

Graphical abstract: A facile template approach to nitrogen-doped hierarchical porous carbon nanospheres from polydopamine for high-performance supercapacitors

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Publication details

The article was received on 06 Jul 2017, accepted on 02 Aug 2017 and first published on 03 Aug 2017


Article type: Paper
DOI: 10.1039/C7TA05880B
Citation: J. Mater. Chem. A, 2017,5, 18242-18252
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    A facile template approach to nitrogen-doped hierarchical porous carbon nanospheres from polydopamine for high-performance supercapacitors

    S. Xiong, J. Fan, Y. Wang, J. Zhu, J. Yu and Z. Hu, J. Mater. Chem. A, 2017, 5, 18242
    DOI: 10.1039/C7TA05880B

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