Preparation and characterization of highly ordered iron oxide nanowire arrays by sol-gel template method

Highly ordered iron oxide nanowire arrays were prepared by sol-gel template method within the pores of anodic alumina membrane (AAM). Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) were used to characterize the morphology and crystalloid structure of iron oxide nonawire arrays. It was demonstrated that iron oxide nonawires were very uniformly assembled and parallel to each other as the pores in AAM template. The length and diameter of nanowires were dependent on the thickness and hole diameter of AAM.