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Performance of activated charcoal based supercapacitor (SC) containing hydroquinone (HQ), as an organic redox shuttle, is evaluated in triethylammonium bis(trifluoromethane)sulfonimide (TEATFSI). Cyclic voltammograms of the SC show pseudocapacitive contribution of HQ and the galvanostatic charge–discharge measurement shows enhanced specific capacitance (72.0 F g−1) and specific energy (31.22 Wh Kg...
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