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Nanodiamond Converted Hollow Graphene Spheres as Electrodes for Supercapacitors

Published online by Cambridge University Press:  22 May 2014

J. L. Li
Affiliation:
School of Engineering and Applied Science, Aston University, Birmingham B4 7ET, UK
S. Su
Affiliation:
School of Engineering and Applied Science, Aston University, Birmingham B4 7ET, UK
J. Li
Affiliation:
School of Engineering and Applied Science, Aston University, Birmingham B4 7ET, UK
H. Ye*
Affiliation:
School of Engineering and Applied Science, Aston University, Birmingham B4 7ET, UK
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Abstract

A porous composite formed of hollow graphene spheres with opens in them and amorphous carbon containing nitrogen and oxygenated groups has been fabricated by annealing the mixture of nanodiamond and polyacrylonitrile (PAN). Electrochemical tests on the electrode made of this material show that it may be a promising electrode material for supercapacitors. The relatively high capacitance is mainly attributed to the small inner electrical resistance, the huge specific surface area and the remaining nitrogen and oxygenated groups from the PAN.

Type
Articles
Copyright
Copyright © Materials Research Society 2014 

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References

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