Ultra high stable supercapacitance performance of conducting polymer coated MnO2 nanorods/rGO nanocomposites

K. Hareesh, B. Shateesh, R. P. Joshi, J. F. Williams, D. M. Phase, S. K. Haram, S.D. Dhole

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A ternary nanocomposite that consists of MnO2 nanorods and reduced graphene oxide sheets supported on poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) polymer has been developed for supercapacitor applications. X-ray diffraction, field emission scanning electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, the Brunauer-Emmett-Teller method and X-ray photoelectron spectroscopic analysis confirmed the formation of a ternary nanocomposite of PEDOT:PSS/MnO2 nanorods/rGO. Electrochemical investigation of these materials in acetonitrile containing lithium per chlorate demonstrated an enhanced specific capacitance of 633 F g−1 at a current density of 0.5 A g−1 and 100% stability up to 5000 charging-discharging cycles at 1 A g−1. The enhanced capacitance and working stability of the PEDOT:PSS/MnO2 nanorods/rGO nanocomposite along with the simplicity in making the active materials make this system a promising candidate for the commercial development of supercapacitors.

Original languageEnglish
Pages (from-to)20027-20036
Number of pages10
JournalRSC Advances
Volume7
Issue number32
DOIs
Publication statusPublished - 2017

Fingerprint Dive into the research topics of 'Ultra high stable supercapacitance performance of conducting polymer coated MnO<sub>2</sub> nanorods/rGO nanocomposites'. Together they form a unique fingerprint.

  • Cite this

    Hareesh, K., Shateesh, B., Joshi, R. P., Williams, J. F., Phase, D. M., Haram, S. K., & Dhole, S. D. (2017). Ultra high stable supercapacitance performance of conducting polymer coated MnO2 nanorods/rGO nanocomposites. RSC Advances, 7(32), 20027-20036. https://doi.org/10.1039/c7ra01743j