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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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Article information


Submitted
18 Jul 2013
Accepted
12 Oct 2013
First published
17 Oct 2013

J. Mater. Chem. A, 2013,1, 15423-15428
Article type
Paper

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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