Effect of Heating Rate on Structures and Properties of NiO Nanorods

In this study precursor of Nickel Oxide (NiO) nanorods were synthesised by hydrothermal method. Thenannealed at 400 ˚C for 2h, part of sample with heating rate 2 °C/min and the other part instantly. The microstructure ofthe samples was characterized by SEM and XRD. The optical properties of them characterized by UV-Vis spectra. Theproperties of two samples were compared. The heating rate increased diameters and lengths from 50 to 70nm and from200 to 1000nm, respectively. This treatment influences the structure and band gap.

کلیدواژه ها:

NiO ، Hydrothermal ، Nanorods