Non-aqueous nanoporous gold based supercapacitors with high specific energy

Ying Hou, Luyang Chen, Akihiko Hirata, Takeshi Fujita, Mingwei Chen

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

In this study, we report that the supercapacitor performance of polypyrrole (PPy) in non-aqueous electrolytes can be dramatically improved by highly conductive nanoporous gold which acts as both the support of active PPy and the current collector of supercapacitors. The excellent electronic conductivity, rich porous structure and large surface area of the nanoporous electrodes give rise to a high specific capacitance and low internal resistance in non-aqueous electrolytes. Combining with a wide working potential window of ∼ 2 V, the non-aqueous PPy-based supercapacitors show an extraordinary energy density and power density.

Original languageEnglish
Pages (from-to)76-81
Number of pages6
JournalScripta Materialia
Volume116
DOIs
Publication statusPublished - 2016 Apr 15
Externally publishedYes

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Keywords

  • Dealloying
  • Ionic liquid
  • Nanoporous gold
  • Polypyrrole
  • Supercapacitor

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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