Pulse Electrosynthesis of MnO2 Electrodes for Supercapacitors

ABSTRACT Experimental results on cathodic electrosynthesis of MnO 2 electrodes for electrochemical supercapacitors are presented. The deposition yield data at different pulse durations and electrosynthesis mechanism are discussed. Electron microscopy investigations show porous structure of the electrodes, which is beneficial for good electrolyte access to the active material. The capacitance of 2.6 F cm –2 (199 F g –1 ), energy density of 20 …