Copper Chromite-Polyaniline Nanocomposite: An Advanced Electrode Material for High Performance Energy Storage

Dayakar Gandla, Suprabhat Sarkar, Epsita Ghanti, Sutapa Ghosh*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

In this study, we report a novel copper chromite-polyaniline (CuCr2O4-PANI) nanocomposite electrode material for fabrication of high-performance energy storage. First CuCr2O4 is synthesized via sol-gel driven epoxide method followed by its nanocomposite with PANI through in situ chemical oxidative polymerization method. The micro structure and morphology of CuCr2O4-PANI are characterized by various techniques. The as synthesized nanocomposite with optimized ratio exhibits a specific capacity of 479.2C g−1 at 2 mV s−1 and high cycling stability with 93.9% capacity retention after 1000 charge-discharge cycles. Furthermore, it shows energy and power densities of 26.6 Wh kg−1 and 3600 W kg−1, respectively. The change in electrochemical properties of the nanocomposite with increasing CuCr2O4 loading is explained in detail.

Original languageEnglish
Pages (from-to)486-495
Number of pages10
JournalElectrochimica Acta
Volume248
DOIs
StatePublished - 10 Sep 2017
Externally publishedYes

Keywords

  • copper chromite-polyaniline
  • high-performance energy storage
  • in situ chemical oxidative polymerization
  • sol-gel

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