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

doi:10.1039/c7ra01743j

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

^*Corresponding author for this work

Department of Physics, Manipal Institute of Technology, Bengaluru

Research output: Contribution to journal › Article › peer-review

30 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 language	English
Pages (from-to)	20027-20036
Number of pages	10
Journal	RSC Advances
Volume	7
Issue number	32
DOIs	https://doi.org/10.1039/c7ra01743j
Publication status	Published - 2017

All Science Journal Classification (ASJC) codes

General Chemistry
General Chemical Engineering

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title = "Ultra high stable supercapacitance performance of conducting polymer coated MnO2 nanorods/rGO nanocomposites",

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.",

author = "K. Hareesh and B. Shateesh and Joshi, {R. P.} and Williams, {J. F.} and Phase, {D. M.} and Haram, {S. K.} and Dhole, {S. D.}",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry.",

year = "2017",

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AU - Hareesh, K.

AU - Shateesh, B.

AU - Joshi, R. P.

AU - Williams, J. F.

AU - Phase, D. M.

AU - Haram, S. K.

AU - Dhole, S. D.

PY - 2017

Y1 - 2017

N2 - 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.

AB - 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.

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

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