Design of NiCo2O4 nanoarray morphology for optimizing electrochemical stability of supercapacitor

Here, the hierarchical NiCo2O4 nanoarray grown on Ni foam with various morphologies is designed and synthesized for application in electrode of supercapacitor by a soft-template-assisted hydrothermal approach. The effect of NiCo2O4 nanoarray morphology on electrochemical performance of supercapacitor is investigated in detail. It is found that the NiCo2O4 hierarchical nanosheet/nanofiber array shows large area capacitance (8.6F cm−2) and good cycling stability (81.0