Effect of reducing agent on graphene synthesis and its influence on charge storage towards supercapacitor applications
2015
A simple chemical route was adopted for the preparation of graphene by chemical reduction route using sodium borohydride (NaBH4) as a reducing agent. A systematic study was done to show the effect of NaBH4 on the reduction and the obtained graphene samples were characterized using X-ray diffraction, Fourier transform spectroscopy, Raman spectroscopy, Atomic force microcopy and High resolution transmission electron microscopy. Better reduction of GO was observed at GO and NaBH4 ratio of 1:10 (denoted as SR1:10). Further, the investigation was emphasized to show the effect of the above GO to reductant ratio on its charge storage properties. Electrochemical measurements were carried out in 6M KOH electrolyte and the results show that the capacitance performance was increased in the order of GO
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