The Influence of Oleic Acid to Metal Nitrate Ratio on the Particle Size and Magnetic Properties of Lanthanum Ferrite Nanoparticles by Emulsion Method

Title
The Influence of Oleic Acid to Metal Nitrate Ratio on the Particle Size and Magnetic Properties of Lanthanum Ferrite Nanoparticles by Emulsion Method
Author(s)
김기현J. Chandradass[J. Chandradass]배동식[배동식]M. Balasubramanian[M. Balasubramanian]
Keywords
POLYMERIZABLE COMPLEX METHOD; PEROVSKITE-TYPE LAFEO3; LAALO3 NANOPOWDERS; COMBUSTION METHOD; GEL METHOD; POWDERS; PRECURSOR; TEMPERATURE; MORPHOLOGY; ROUTE
Issue Date
201103
Publisher
TAYLOR & FRANCIS INC
Citation
MATERIALS AND MANUFACTURING PROCESSES, v.26, no.2, pp.230 - 235
Abstract
LaFeO3 nanoparticles of different sizes are prepared by varying the molar concentration of oleic acid to metal nitrate using emulsion combustion method. X-ray diffraction analysis confirms that LaFeO3 nanoparticles are crystalline in nature with an orthorhombic structure. The average particle size and saturation magnetization decreases from 56 to 32nm and 0.20 to 0.08emu/g, as molar concentration of oleic acid to metal nitrate increases from 0.25 to 1. The Fourier transform infrared (FTIR) spectra show the lower frequency bands are assigned to Fe-O stretching vibration (579cm-1) and O-Fe-O deformation vibration (475 and 400cm-1). The experimental results suggest that molar concentration of oleic acid to metal nitrate plays an important role in the particle size and magnetic property of combustion synthesized lanthanum ferrite nanoparticles.
URI
http://hdl.handle.net/YU.REPOSITORY/25528http://dx.doi.org/10.1080/10426914.2010.512818
ISSN
1042-6914
Appears in Collections:
이과대학 > 물리학과 > Articles
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