Hierarchitectures of mesoporous flowerlike NiCo2S4 with excellent pseudocapacitive properties

A 3D hierarchical structured NiCo2S4, which was constructed of many mesoporous nanosheets, was prepared. The NiCo2S4 electrode revealed amazing pseudocapacitive properties with high specific capacitance and excellent rate capability. Moreover, the specific capacitance could remain 89.6% of its initial value after 1000 cycles.