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Synthesis and properties of α‐Fe 2 O 3 nanorods
Author(s) -
Ramesh R.,
Ashok K.,
Bhalero G. M.,
Ponnusamy S.,
Muthamizhchelvan C.
Publication year - 2010
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201000140
Subject(s) - nanorod , fourier transform infrared spectroscopy , coercivity , transmission electron microscopy , analytical chemistry (journal) , ammonium bromide , materials science , hematite , magnetization , scanning electron microscope , calcination , spectroscopy , pulmonary surfactant , chemistry , nuclear chemistry , nanotechnology , chemical engineering , physics , condensed matter physics , magnetic field , composite material , biochemistry , chromatography , quantum mechanics , engineering , metallurgy , catalysis
We report synthesis of α‐Fe 2 O 3 (hematite) nanorods by reverse micelles method using cetyltrimethyl ammonium bromide (CTAB) as surfactant and calcined at 300 °C. The calcined α‐Fe 2 O 3 nanorods were characterized by X‐ray diffraction (XRD), high‐resolution scanning electron microscopy (HRSEM), transmission electron microscopy (TEM), energy dispersive spectrometer (EDS), fourier transform infrared spectroscopy (FTIR) and vibrating sample magnetometer (VSM). The result showed that the α‐Fe 2 O 3 nanorods were hexagonal structure. The nanorods have diameter of 30‐50 nm and length of 120‐150 nm. The weak ferromagnetic behavior was observed with saturation magnetization = 0.6 emu/g, coercive force = 25 Oe and remanant magnetization = 0.03 emu/g. (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)