Synthesis of hierarchical porous spinel nickel cobaltite nanoflakes for high performance electrochemical energy storage supercapacitors

Abstract

Hierarchical porous spinel nickel cobaltite (NiCo2O4) nanoflakes synthesized through a cost-effective and scalable chemical precipitation method exhibited high specific capacitance (1270 F g−1), excellent rate capability (81% capacity retention at 10 A g−1) and cycling stability (only 4.8% loss after 5000 cycles).