Augmentation Of The Supercapacitive Performance Of Mn3O4 Nanoparticles By Doping Ni

Ni-doped Mn3O4 nanoparticles (NMO) with a morphology facilitating high surface area were synthesized by prudent hydrothermal synthesis, manifesting a supercapacitive tone with high specific capacitance and excelling cyclability. NMO nanoparticles were agglomerated from hydrated manganese chloride, hydrated nickel chloride, and sodium hydroxide precursors. The XRD results demonstrated predominant peaks oriented from (211), analogous to the I41/amd space group tetragonal structure. The Raman studies affirmed the bonding characteristics of vibration and bending modes of the Mn-O bond. The SEM inquiries proclaimed the morphology providing a large surface area. EDAX reports infer the elemental composition for phase purity confirmation of elements Mn, O, and Ni. Electrochemical accusation exhibited a pseudocapacitive character through cyclic voltammetry. The GCD deductions evince a specific capacitance of 565 F/g for Mn3O4 electrodes and 626 F/g for 0.6% NMO electrodes at a specific current of 0.5 A/g. These NMO electrodes achieved a cyclic capacitance rate of 82% after 3600 cycles.