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Hybrid SWCNT - NiO Composites for Supercapacitor Applications

Published online by Cambridge University Press:  15 May 2013

Jeffrey R. Alston ,
Dylan Brokaw ,
Colton Overson ,
Thomas A. Schmedake  and
Jordan C. Poler
Jeffrey R. Alston
Affiliation:
University of North Carolina at Charlotte, 9201 University City Blvd., Charlotte, NC 28223, U.S.A
Dylan Brokaw
Affiliation:
University of North Carolina at Charlotte, 9201 University City Blvd., Charlotte, NC 28223, U.S.A
Colton Overson
Affiliation:
University of North Carolina at Charlotte, 9201 University City Blvd., Charlotte, NC 28223, U.S.A
Thomas A. Schmedake
Affiliation:
University of North Carolina at Charlotte, 9201 University City Blvd., Charlotte, NC 28223, U.S.A
Jordan C. Poler
Affiliation:
University of North Carolina at Charlotte, 9201 University City Blvd., Charlotte, NC 28223, U.S.A
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Abstract

Supercapacitor devices promise to be an effective means of storing energy, and delivering power for personal electronics, remote sensors, and transportation.1, 2 Rare earth metals, such as ruthenium, have been used and report high value of capacitance, specific power, and energy.4 Nevertheless, the rarity of such metals prevent their practical use. In this study we utilize an earth-abundant nickel and a controlled microwave synthesis to create nickel oxide (NiO) with an optimal nanostructure for capacitance. To surpass the lofty series resistance associated with metal oxides such as NiO, we exploit the conductive properties of single and multi-walled carbon nanotubes. The carbon nanotubes and NiO can benefit from the presence of each other by preventing unnecessary aggregation.

Keywords

energy storagenanostructuremicrowave heating
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1552: Symposium S – Nanostructured Metal Oxides for Advanced Applications , 2013 , mrss13-1552-s02-02
Copyright
Copyright © Materials Research Society 2013 

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References

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