Composites Research

  • 제29권4호
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  • Pages.167-172
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  • 2016
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  • 2288-2103(pISSN)
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  • 2288-2111(eISSN)
한국복합재료학회 (The Korean Society for Composite Materials)
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Development of Cobalt Sulfide-graphene Composite for Supercapacitor Applications

  • Jana, Milan (Surface Engineering & Tribology Division, Council of Scientific and Industrial Research-Central Mechanical Engineering Research Institute) ;
  • Samanta, Pranab (Surface Engineering & Tribology Division, Council of Scientific and Industrial Research-Central Mechanical Engineering Research Institute) ;
  • Murmu, Naresh Chandra (Surface Engineering & Tribology Division, Council of Scientific and Industrial Research-Central Mechanical Engineering Research Institute) ;
  • Kim, Nam Hoon (Advanced Materials Research Institute for BIN Convergence Technology (BK Plus Global, Program), Department of BIN Convergence Technology, Chonbuk National University) ;
  • Kuila, Tapas (Surface Engineering & Tribology Division, Council of Scientific and Industrial Research-Central Mechanical Engineering Research Institute) ;
  • Lee, Joong Hee (Advanced Materials Research Institute for BIN Convergence Technology (BK Plus Global, Program), Department of BIN Convergence Technology, Chonbuk National University)
  • 투고 : 2016.08.16
  • 심사 : 2016.08.30
  • 발행 : 2016.08.31
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초록

$Co_9S_8/reduced$ graphene (CSRG) has been prepared by a facile two step hydrothermal method and used as a supercapacitor electrode material. It is anticipated that the $Co_9S_8$ and reduced graphene oxide (RGO) would serve as a spacer material to each other to stop the agglomeration and simultaneous contribution of electrical double layer capacitance (RGO) and pseudocapacitance ($Co_9S_8$) would provide high electrochemical properties. The chemical analysis has been done by Fourier transform infrared spectroscopy and the morphology is characterised by field emission scanning electron microscopy. CSRG shows a high electrical conductivity of $98S\;m^{-1}$. The symmetric supercapacitor shows a specific capacitance of ${\sim}728F\;g^{-1}$ with a current density of $2A\;g^{-1}$. CSRG also showed an energy density of $25.2Wh\;kg^{-1}$ with a power density of $1000W\;kg^{-1}$.

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참고문헌

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