Fabrication and characterization of highly ordered Ni_(0.5)Zn_(0.5)Fe_2O_4 nanowire/tube arrays by sol-gel template method

摘要

Highly ordered nanowire/tube arrays of Ni_(0.5)Zn_(0.5)Fe_2O_4 were fabricated by the sol-gel method in the pores of anodic alumina membrane (AAM). Whether nanowires or nanotubes were fabricated depends on immersion time. The immersion time was 15-40 s for nanotubes and over 60 s for nanowires. The topography and crystalline structure of the nanowire arrays were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD). It was found that the length and diameter of the Ni_(0.5)Zn_(0.5)Fe_2O_4 nanowires are related to the thickness of the AAM and the diameter of the pores. The results indicated that the Ni_(0.5)Zn_(0.5)Fe_2O_4 nanowires are uniform and parallel to each other.