Abstract
The reduced graphene oxide (rGO)/activated carbon (AC) composites are coated on the aluminum substrate using spray coating technique to fabricate nanocarbon-based supercapacitor. Polymer-based solid-state xanthan-gum/Na2SO4 electrolyte is also introduced to increase stability of the supercapacitor. The electrochemical properties of the supercapacitor are evaluated using cyclic voltammetry, electrochemical impedance spectroscopy and galvanostatic charge/discharge tests. The highest capacitance value of the rGO/AC composite-based supercapacitor is 120 F/g. The rGO/AC composite-based supercapacitor has also retained ~ 85% of its initial capacitance value after 3000 galvanostatic charge/discharge cycles.
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Jung, H.Y., Kim, Y.R. & Jeong, H.T. All-solid-state supercapacitor composed of reduced graphene oxide (rGO)/activated carbon (AC) composite and polymer electrolyte. Carbon Lett. 30, 107–113 (2020). https://doi.org/10.1007/s42823-019-00077-1
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DOI: https://doi.org/10.1007/s42823-019-00077-1