Recent developments in MnNiO₃@rGO nanohybrid for advanced energy storage devices

The demand of reduced graphene oxide-based nanosheets decorated with metal oxides in electrochemical energy storage devices has increased in recent years. The hydrothermal preparation of MnNiO₃ and MnNiO₃@rGO nanohybrid has been described in the current work. The prepared samples were evaluated structurally, morphologically and electrochemically using a variety of analytical instruments. The MnNiO₃@rGO nanohybrid showed specific capacitance 1507 F/g calculated from the GCD plot with the exceptional cyclic stability of 5000th cycles at 1 A/g with a lower charge transfer resistance of 0.18 Ω. The exceptional performance of the MnNiO₃@rGO nanohybrid can be due to the hierarchical structure and improvement in charge transfer capability. During redox process MnNiO₃@rGO nanohybrid provides more active sites and a shorter channel for ion transport. As a result, the MnNiO₃@rGO nanohybrid electrochemical performance can be significantly improved and its potential in energy storage systems.