An ultrahigh volumetric capacitance of squeezable three-dimensional bicontinuous nanoporous graphene

H. J. Qiu, L. Y. Chen, Y. Ito, J. L. Kang, X. W. Guo, P. Liu, H. Kashani, Akihiko Hirata, T. Fujita, M. W. Chen

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Graphene with a large specific surface area and high conductivity has a large specific capacitance. However, its volumetric capacitance is usually very low because the restacking of 2D graphene sheets leads to the loss of the large ion-accessible surface area. Here we report squeezable bicontinuous nanoporous nitrogen-doped graphene, which is extremely flexible and can tolerate large volume contraction by mechanical compression without the face-to-face restacking occurring. The compressed nanoporous N-doped graphene with a large ion accessible surface area and high conductivity shows an ultrahigh volumetric capacitance of ∼300 F cm-3 together with excellent cycling stability and high rate performance.

Original languageEnglish
Pages (from-to)18551-18557
Number of pages7
JournalNanoscale
Volume8
Issue number43
DOIs
Publication statusPublished - 2016 Nov 21
Externally publishedYes

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Graphene
Capacitance
Heavy ions
Specific surface area
Nitrogen

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Qiu, H. J., Chen, L. Y., Ito, Y., Kang, J. L., Guo, X. W., Liu, P., ... Chen, M. W. (2016). An ultrahigh volumetric capacitance of squeezable three-dimensional bicontinuous nanoporous graphene. Nanoscale, 8(43), 18551-18557. https://doi.org/10.1039/c5nr08852f

An ultrahigh volumetric capacitance of squeezable three-dimensional bicontinuous nanoporous graphene. / Qiu, H. J.; Chen, L. Y.; Ito, Y.; Kang, J. L.; Guo, X. W.; Liu, P.; Kashani, H.; Hirata, Akihiko; Fujita, T.; Chen, M. W.

In: Nanoscale, Vol. 8, No. 43, 21.11.2016, p. 18551-18557.

Research output: Contribution to journalArticle

Qiu, HJ, Chen, LY, Ito, Y, Kang, JL, Guo, XW, Liu, P, Kashani, H, Hirata, A, Fujita, T & Chen, MW 2016, 'An ultrahigh volumetric capacitance of squeezable three-dimensional bicontinuous nanoporous graphene', Nanoscale, vol. 8, no. 43, pp. 18551-18557. https://doi.org/10.1039/c5nr08852f
Qiu, H. J. ; Chen, L. Y. ; Ito, Y. ; Kang, J. L. ; Guo, X. W. ; Liu, P. ; Kashani, H. ; Hirata, Akihiko ; Fujita, T. ; Chen, M. W. / An ultrahigh volumetric capacitance of squeezable three-dimensional bicontinuous nanoporous graphene. In: Nanoscale. 2016 ; Vol. 8, No. 43. pp. 18551-18557.
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