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Issue 48, 2013
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Synthesis and characterization of graphene hollow spheres for application in supercapacitors

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Abstract

We have successfully assembled graphene nanosheets into spherical shells using polystyrene spheres as templates. Compared with stacked planar graphene, the as-prepared graphene spherical shells have more free space in between the spheres, which results in a larger accessible surface area for adsorption of electrolyte ions in supercapacitors. Electrochemical tests show that the graphene hollow spheres exhibit a high specific capacitance of 273 F gāˆ’1 and excellent electrochemical stability.

Graphical abstract: Synthesis and characterization of graphene hollow spheres for application in supercapacitors

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Publication details

The article was received on 18 Jul 2013, accepted on 12 Oct 2013 and first published on 17 Oct 2013


Article type: Paper
DOI: 10.1039/C3TA12789C
Citation: J. Mater. Chem. A, 2013,1, 15423-15428
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    Synthesis and characterization of graphene hollow spheres for application in supercapacitors

    Q. Shao, J. Tang, Y. Lin, F. Zhang, J. Yuan, H. Zhang, N. Shinya and L. Qin, J. Mater. Chem. A, 2013, 1, 15423
    DOI: 10.1039/C3TA12789C

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