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Magnesium Ferrite (MgFe2O4) Nanostructures Fabricated by Electrospinning

Maensiri, Santi and Sangmanee, Montana and Wiengmoon, Amporn (2009) Magnesium Ferrite (MgFe2O4) Nanostructures Fabricated by Electrospinning. Nanoscale Research Letters, 4 (3). pp. 221-228.

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Official URL: http://www.springerlink.com/content/v117333607136l...

Abstract

Magnesium ferrite (MgFe2O4) nanostructures were successfully fabricated by electrospinning method. X-ray diffraction, FT-IR, scanning electron microscopy, and transmission electron microscopy revealed that calcination of the as-spun MgFe2O4/poly(vinyl pyrrolidone) (PVP) composite nanofibers at 500–800 °C in air for 2 h resulted in well-developed spinel MgFe2O4 nanostuctures. The crystal structure and morphology of the nanofibers were influenced by the calcination temperature. Crystallite size of the nanoparticles contained in nanofibers increased from 15 ± 4 to 24 ± 3 nm when calcination temperature was increased from 500 to 800 °C. Room temperature magnetization results showed a ferromagnetic behavior of the calcined MgFe2O4/PVP composite nanofibers, having their specific saturation magnetization (M s) values of 17.0, 20.7, 25.7, and 31.1 emu/g at 10 Oe for the samples calcined at 500, 600, 700, and 800 °C, respectively. It is found that the increase in the tendency of M s is consistent with the enhancement of crystallinity, and the values of M s for the MgFe2O4 samples were observed to increase with increasing crystallite size

Item Type:Article
Uncontrolled Keywords:Magnesium ferrite - Nanofibers - Electrospinning - Electron microscopy - X-ray diffraction - Magnetic properties - Nanofabrication
Subjects:Physical Science > Nanophysics
Analytical Science > Microscopy and probe methods
Material Science > Nanofabrication processes and tools
Physical Science > Nanomagnetics
ID Code:4183
Deposited By:Lesley Tobin
Deposited On:05 Aug 2009 16:55
Last Modified:05 Aug 2009 16:55

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