Three-dimensional bicontinuous nanoporous Au/polyaniline hybrid films for high-performance electrochemical supercapacitors

Xingyou Lang, Ling Zhang, Takeshi Fujita, Yi Ding, Mingwei Chen

Research output: Contribution to journalArticlepeer-review

95 Citations (Scopus)

Abstract

We report three-dimensional bicontinuous nanoporous Au/polyaniline (PANI) composite films made by one-step electrochemical polymerization of PANI shell onto dealloyed nanoporous gold (NPG) skeletons for the applications in electrochemical supercapacitors. The NPG/PANI based supercapacitors exhibit ultrahigh volumetric capacitance (∼1500 F cm-3) and energy density (∼0.078 Wh cm-3), which are seven and four orders of magnitude higher than these of electrolytic capacitors, with the same power density up to ∼190 W cm-3. The outstanding capacitive performances result from a novel nanoarchitecture in which pseudocapacitive PANI shells are incorporated into pore channels of highly conductive NPG, making them promising candidates as electrode materials in supercapacitor devices combing high-energy storage densities with high-power delivery.

Original languageEnglish
Pages (from-to)325-329
Number of pages5
JournalJournal of Power Sources
Volume197
DOIs
Publication statusPublished - 2012 Jan 1

Keywords

  • Capacitors
  • Hybrid materials
  • Nanoporous metal
  • Polyaniline
  • Supercapacitors

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Three-dimensional bicontinuous nanoporous Au/polyaniline hybrid films for high-performance electrochemical supercapacitors'. Together they form a unique fingerprint.

Cite this