Hybrid MnO2@NiCo2O4 nanosheets for high performance asymmetric supercapacitors

In this work, hybrid MnO₂@NiCo₂O₄ nanosheets grown on Ni foam have been synthesized through a facile hydrothermal approach. The MnO₂@NiCo₂O₄ electrode delivers a high specific capacitance of 3086 mF cm⁻² at a current density of 2 mA cm⁻².