Densely packed single-crystal Bi{sub 2}Fe{sub 4}O{sub 9} nanowires fabricated from a template-induced sol-gel route

Journal Article · Wed Nov 15 00:00:00 EST 2006 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2006.06.029· OSTI ID:20900874

Zhi, Yang ^[1]; Yi, Huang ^[2]; Bin, Dong ^[2]; Hulin, Li ^[2]; Sanqiang, Shi ^[1]

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1. Department of Mechanical Engineering, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong (China)
2. College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000 (China)

Densely packed single-crystal Bi{sub 2}Fe{sub 4}O{sub 9} 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 Bi{sub 2}Fe{sub 4}O{sub 9} 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 Bi{sub 2}Fe{sub 4}O{sub 9} nanowires had an orthorhombic single-crystal structure. Furthermore, the energy-dispersive X-ray (EDX) spectroscopy demonstrated that the stoichiometric Bi{sub 2}Fe{sub 4}O{sub 9} was formed. The possible formation mechanism of nanowires was also discussed. - Graphical abstract: The top view in low magnification of SEM images of Bi{sub 2}Fe{sub 4}O{sub 9} nanowires after AAO template is partly dissolved.

• OSTI ID: 20900874
• Journal Information: Journal of Solid State Chemistry, Vol. 179, Issue 11; Other Information: DOI: 10.1016/j.jssc.2006.06.029; PII: S0022-4596(06)00366-5; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM OXIDES
BISMUTH OXIDES
ELECTRON DIFFRACTION
IRON OXIDES
MONOCRYSTALS
ORTHORHOMBIC LATTICES
POROUS MATERIALS
QUANTUM WIRES
SCANNING ELECTRON MICROSCOPY
SOL-GEL PROCESS
SPECTROSCOPY
STOICHIOMETRY
TRANSMISSION ELECTRON MICROSCOPY
WIRES
X-RAY DIFFRACTION