Sponge-like NiCo₂S₄ nanosheets supported on nickel foam as high-performance electrode materials for asymmetric supercapacitors

Abstract

Herein, binder-free sponge-like NiCo₂S₄ nanosheets supported on Ni foam with ultra-high mass loading were synthesized <italic>via</italic> a facile one-step hydrothermal route.