Colloidal Processing of Mn3O4-Carbon Nanotube Nanocomposite Electrodes for Supercapacitors

This investigation addresses the challenges in the development of efficient nanostructured Mn₃O₄ cathodes for supercapacitors. A high areal capacitance and the ability to avoid a time-consuming activation procedure for electrodes with high active mass loading of 40 mg cm^-2 are reported. This facilitates practical applications of Mn₃O₄ based electrodes. The highest capacitance of 6.11 F cm^-2 (153 F g^-1) is obtained from cyclic voltammetry at a …