In-situ growth of hierarchical NiCo2S4/MoS2 nanotube arrays with excellent electrochemical performance

Novel hierarchical NiCo2S4/MoS2 nanotube array directly grown on Ni foam is in-situ fabricated using the NiCo2O4 nanorod array as template. The hierarchical hybrid nanotubes not only provide good synergic effect of active materials and large surface area but also promote electron transfer, ion diffusion and structural stability. When evaluated as electrochemical electrode, the hierarchical NiCo2S4/MoS2 nanotubes exhibit high rate capability and cycling stability even at high current densities.