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http://dx.doi.org/10.7234/composres.2016.29.4.167

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)
Publication Information
Composites Research / v.29, no.4, 2016 , pp. 167-172 More about this Journal
Abstract
$Co_9S_8/reduced$ 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 $1000W\;kg^{-1}$.
Keywords
$Co_9S_8/reduced$ graphene oxide; Supercapacitor; Energy density; Power density;
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Times Cited By KSCI : 1  (Citation Analysis)
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