Asymmetric metal oxide pseudocapacitors advanced by three-dimensional nanoporous metal electrodes

L. Y. Chen, Y. Hou, J. L. Kang, A. Hirata, M. W. Chen*

*この研究の対応する著者

研究成果: Article査読

61 被引用数 (Scopus)

抄録

We report a novel RuO2-NPG//Co(OH)2-NPG asymmetric supercapacitor with a high specific capacitance and a wide potential window in which bifunctional nanoporous gold is used as both the highly conductive supports of the pseudocapacitive oxides and the 3D current collectors in the device. The RuO2-NPG and Co(OH)2-NPG electrodes can reach specific capacitances of 1300 F g-1 and 1800 F g-1, respectively, which provide comparatively high specific capacitances in relation to metal oxide/carbon electrodes, giving rise to an asymmetric oxide pseudocapacitor with a large capacitance of ∼350 F g-1, high working voltage of 1.6 V and an ultrahigh energy density of ∼120 W h kg -1.

本文言語English
ページ(範囲)8448-8455
ページ数8
ジャーナルJournal of Materials Chemistry A
2
22
DOI
出版ステータスPublished - 2014 6月 14
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 再生可能エネルギー、持続可能性、環境
  • 材料科学(全般)

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