Preparation of porous nanorod polyaniline film and its high electrochemical capacitance performance

Jiguo Tu, Jungang Hou, Wei Wang, Shuqiang Jiao, Hongmin Zhu

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Nano-sized polyaniline (PANI) films were electrochemically deposited onto an ITO substrate by a pulse galvanostatic method (PGM) in an aqueous solution. The morphology of the as-prepared PANI film was characterized using a field emission scanning electron microscope (FESEM). It was observed that the as-prepared PANI films were highly porous, and showed a nano-sized rod-like or coralline-like morphology depending on the charge loading performed in the electropolymerization process. Furthermore, the PANI films were electrochemically measured by the galvanostatic charge-discharge (GCD), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) tests in 1 mol L-1 HClO4 solution. The results showed that such PANI films had a favorable electrochemical activity and an excellent capacitance. The rod-like PANI film prepared with the charge loading of 1000 mC showed the highest discharge capacitance of 569.1 F g-1 at a low current density of 1 A g-1. The discharge capacitance retained 97.7% after 1000 cycles at a large current density of 10 A g-1.

Original languageEnglish
Pages (from-to)1255-1258
Number of pages4
JournalSynthetic Metals
Volume161
Issue number13-14
DOIs
Publication statusPublished - 2011 Jul 1
Externally publishedYes

Keywords

  • Electropolymerization
  • Nano-sized
  • Polyaniline
  • Supercapacitor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Preparation of porous nanorod polyaniline film and its high electrochemical capacitance performance'. Together they form a unique fingerprint.

  • Cite this