Densely packed single-crystal Bi2Fe4O9 nanowires fabricated from a template-induced sol-gel route |
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| Authors: | Zhi Yang Bin Dong San-Qiang Shi |
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| Institution: | a Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
b College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China |
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| Abstract: | Densely packed single-crystal Bi2Fe4O9 nanowires were successfully synthesized by a template-induced citrate-based sol-gel process. The structural properties of the nanowires were characterized using many techniques. The results of scanning electron microscopy (SEM) and transmission electron microscopy (TEM) revealed that Bi2Fe4O9 nanowires possessed a uniform length and diameter, which were controlled by the thickness and the pore diameter of the applied porous anodic aluminum oxide (AAO) template, respectively. The results of X-ray diffraction (XRD) and the selected area electron diffraction (SAED) indicated that Bi2Fe4O9 nanowires had an orthorhombic single-crystal structure. Furthermore, the energy-dispersive X-ray (EDX) spectroscopy demonstrated that the stoichiometric Bi2Fe4O9 was formed. The possible formation mechanism of nanowires was also discussed. |
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| Keywords: | Bi2Fe4O9 nanowires Sol-gel Template |
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