X-ray diffraction (XRD) was carried out using a
D/max 2400 diffractometer working at 0.15418 nm to
determine the phase of the products. The microstructures
and morphologies of the obtained nanowires
were investigated by scanning electron microscopy
(SEM, Zeiss Supra 35) and transmission electron microscopy
(TEM, JEOL 2100) equipped with an Oxford
Link ISIS energy dispersive X-ray spectroscopy
(EDS) system.