Facile one-step synthesis, structural, optical and electrochemical properties of NiCo2O4 nanostructures

Hexagonal and bundle like spinel nickel cobaltite nanostructures has been successfully prepared using two different precipitants such as oxalic acid and potassium hydroxide by facile one-step route followed by calcinated at 400 °C in air, and their structural, optical and electrochemical properties are proposed in this work. The optical band gap of these materials was estimated around 3.88 and 4.07 eV. Room temperature photoluminescence...