25-27 November 2015
National Centre for Synchrotron Science
Australia/Melbourne timezone

A structural study and magnetic properties of electrospun carbon/manganese ferrite (C/MnFe2O4) composite nanofibers

27 Nov 2015, 13:30
National Centre for Synchrotron Science

National Centre for Synchrotron Science

Australian Synchrotron 800 Blackburn Road Clayton VIC 3168
Board: AM-16
Poster Advanced Materials Poster Session 2


Dr Pinit Kidkhunthod (Synchrotron Light Research Institute (Public Organiztion))


Carbon/manganese ferrite (C/MnFe2O4) composite nanofibers were fabricated using electrospinning technique followed by carbonization process under mixed of air and argon atmosphere at 400, 600 and 800 ˚C, respectively. The prepared composite nanofibers were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), vibrating sample magnetometry (VSM) and X-ray absorption spectroscopy (XAS) including X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS). After calcination at 800 ˚C, the composite nanofibers of C/MnFe2O4 were obtained with a mean diameter of nanofibers of approximately 700 - 800 nm. The structure of MnFe2O4 was successfully studied using XAS technique and was found to be cubic spinel with a coupling of Mn2/Mn3+ and Fe3+ oxidation states . All composite nanofibers exhibited ferromagnetic behavior especially after being calcined at 800 ˚C. This ferromagnetic properties were related to the distribution of cations over tetrahedral and octahedral sites as revealed by EXAFS results.
Keywords Ferrite; Carbon nanofibers; Nanocomposites; X-ray absorption spectroscopy (XAS); Electrospinning

Primary author

Dr Pinit Kidkhunthod (Synchrotron Light Research Institute (Public Organiztion))

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