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Issue 106, 2016, Issue in Progress
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Controlled synthesis of N-doped carbon spheres with different morphologies for supercapacitors

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Abstract

A facile and general strategy has been developed for synthesizing nitrogen doped mesoporous carbon nanospheres (NMCs), newly nitrogen doped lychee exocarp-like mesoporous carbon spheres (NLEMCs) and nitrogen doped core–shell mesoporous carbon spheres (NCSMCs). In this soft templating strategy, cetyltrimethylammonium chloride is used as the template while m-aminophenol is employed as a nitrogen source. All three types of N-doped carbon nanospheres, with uniform spherical morphologies, abundant mesoporous structures, high N-doped content, high surface areas and large pore volumes, exhibit specific capacitances of 262.4 F g−1, 323.2 F g−1 and 247.06 F g−1, respectively, at a current density of 0.2 A g−1 in 6 M KOH electrolyte solution. NLEMCs with a new lychee exocarp-like spherical morphology show an excellent electrochemical performance as a supercapacitor electrode, which may be due to there being more active sites, caused by the high surface area.

Graphical abstract: Controlled synthesis of N-doped carbon spheres with different morphologies for supercapacitors

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Publication details

The article was received on 08 Sep 2016, accepted on 19 Oct 2016 and first published on 19 Oct 2016


Article type: Paper
DOI: 10.1039/C6RA22424E
Citation: RSC Adv., 2016,6, 104642-104647
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    Controlled synthesis of N-doped carbon spheres with different morphologies for supercapacitors

    Z. Sun, S. Shen, L. Ma, D. Mao and G. Lu, RSC Adv., 2016, 6, 104642
    DOI: 10.1039/C6RA22424E

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