Size and Morphology Control of Gallium Oxide Hydroxide GaO(OH), Nano- to Micro-Sized Particles by Soft-Chemistry Route without Surfactant

Micro- to nano-sized GaOOH nanorods and particles were prepared under varying hydrothermal conditions without any surfactant and additive using gallium nitrate and sodium hydroxide as starting materials. The combination of X-ray diffraction (XRD), transmission electron microscopy (TEM), small area electron diffraction (SAED), energy-dispersive X-ray analysis (EDX), thermogravimetric analysis (TG), and FT-IR was employed to characterize the resulting gallium oxide hydroxide nanorods. Detailed results and the possible growth mechanism are presented.