Synthesis and Characterization of Reduced Graphene Oxide- Polyaniline Composite for Supercapacitor Applications

Shruthi, K. M. Vighnesha, Sandhya, D. N. Sangeetha, M. Selvakumar

Research output: Contribution to journalArticle

Abstract

Graphene oxide (GO) is synthesized from commercially available graphite powder. The prepared GO is converted to reduced graphene oxide (rGO) by chemical reduction using sodium borohydride and sodium hydroxide. The rGO is characterized via X-ray diffraction, Raman spectroscopy and scanning electron microscopy. Conducting polymer–polyaniline, was prepared by oxidative polymerization in an electrolyte- hydrochloric acid and using ammonium persulphate as oxidant. The structure and doping of polyaniline were studied by Fourier-transform infrared spectroscopy and ultra-violet visible spectroscopy. To enhance the conductivity of the rGO, the conducting polymer mixed with rGO and rGO/Conducting polymer composites were prepared. The composite was characterized by cyclic voltammetry, AC impedance spectroscopy. A symmetrical supercapacitor (SC) has been fabricated based on rGO/PANI composites. The prepared composites were shown specific capacitance of 72 F g–1 at 2 mV s–1.

Original languageEnglish
Pages (from-to)359-366
Number of pages8
JournalSurface Engineering and Applied Electrochemistry
Volume54
Issue number4
DOIs
Publication statusPublished - 01-07-2018

Fingerprint

Graphite
electrochemical capacitors
Polyaniline
Oxides
Graphene
graphene
composite materials
oxides
Composite materials
synthesis
Conducting polymers
conducting polymers
Sodium
Ammonium persulfate
borohydrides
Supercapacitor
polyaniline
sodium hydroxides
Sodium Hydroxide
Ultraviolet visible spectroscopy

All Science Journal Classification (ASJC) codes

  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Industrial and Manufacturing Engineering

Cite this

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abstract = "Graphene oxide (GO) is synthesized from commercially available graphite powder. The prepared GO is converted to reduced graphene oxide (rGO) by chemical reduction using sodium borohydride and sodium hydroxide. The rGO is characterized via X-ray diffraction, Raman spectroscopy and scanning electron microscopy. Conducting polymer–polyaniline, was prepared by oxidative polymerization in an electrolyte- hydrochloric acid and using ammonium persulphate as oxidant. The structure and doping of polyaniline were studied by Fourier-transform infrared spectroscopy and ultra-violet visible spectroscopy. To enhance the conductivity of the rGO, the conducting polymer mixed with rGO and rGO/Conducting polymer composites were prepared. The composite was characterized by cyclic voltammetry, AC impedance spectroscopy. A symmetrical supercapacitor (SC) has been fabricated based on rGO/PANI composites. The prepared composites were shown specific capacitance of 72 F g–1 at 2 mV s–1.",
author = "Shruthi and Vighnesha, {K. M.} and Sandhya and Sangeetha, {D. N.} and M. Selvakumar",
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Synthesis and Characterization of Reduced Graphene Oxide- Polyaniline Composite for Supercapacitor Applications. / Shruthi; Vighnesha, K. M.; Sandhya; Sangeetha, D. N.; Selvakumar, M.

In: Surface Engineering and Applied Electrochemistry, Vol. 54, No. 4, 01.07.2018, p. 359-366.

Research output: Contribution to journalArticle

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AU - Shruthi,

AU - Vighnesha, K. M.

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AB - Graphene oxide (GO) is synthesized from commercially available graphite powder. The prepared GO is converted to reduced graphene oxide (rGO) by chemical reduction using sodium borohydride and sodium hydroxide. The rGO is characterized via X-ray diffraction, Raman spectroscopy and scanning electron microscopy. Conducting polymer–polyaniline, was prepared by oxidative polymerization in an electrolyte- hydrochloric acid and using ammonium persulphate as oxidant. The structure and doping of polyaniline were studied by Fourier-transform infrared spectroscopy and ultra-violet visible spectroscopy. To enhance the conductivity of the rGO, the conducting polymer mixed with rGO and rGO/Conducting polymer composites were prepared. The composite was characterized by cyclic voltammetry, AC impedance spectroscopy. A symmetrical supercapacitor (SC) has been fabricated based on rGO/PANI composites. The prepared composites were shown specific capacitance of 72 F g–1 at 2 mV s–1.

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