Hydrothermal synthesis of β-Ni(OH) platelets and their thermal conversion to NiO.

Xu, Chunju; Liu, Guilin; Chen, Huiyu; Hou, Xin; Liu, Yaqing

The β-Ni(OH) platelets and nanorods with length ranging from 2 to 6 μm have been successfully synthesized via a hydrothermal method, and no templates or additives were employed. The products were characterized by X-ray powder diffraction and scanning electron microscopy techniques. The dosage of sodium hydroxide and temperature were found to play important roles in controlling the size and morphology of β-Ni(OH). The shape of β-Ni(OH) platelets was successfully sustained during the thermal transformation to NiO. Optical property of the NiO platelets was investigated by means of UV-Vis spectrum, exhibiting small red shift compared to the bulk counterpart. Such β-Ni(OH) and NiO microstructures may find potential applications in micro/nano-devices.

NANOROD synthesis; HYDROTHERMAL alteration; X-ray powder diffraction; SCANNING electron microscopy; SODIUM hydroxide

Journal of Materials Science: Materials in Electronics, 2014, Vol 25, Issue 9, p3716

0957-4522

Academic Journal

10.1007/s10854-014-2080-2