Electrical and magnetic properties of chitosan-magnetite nanocomposites

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dc.contributor.authorBhatt, A.S.
dc.contributor.authorBhat, D.K.
dc.contributor.authorSantosh, M.S.
dc.date.accessioned2026-02-05T09:36:20Z
dc.date.issued2010
dc.description.abstractMagnetite powders in nanometer size have been synthesized by the hydrothermal process. Various magnetic films of chitosan and the synthesized magnetite nanopowders containing different concentrations of the latter were prepared by ultrasonication route. The X-ray diffraction (XRD) studies and the transmission electron microscopy (TEM) images showed that the synthesized magnetite particles had 80 nm dimensions. The band gap of the composites was evaluated using the UV-visible Spectroscopy. The influence of magnetite content on the magnetic properties of the composite showed a decrease in the saturation magnetization with the decrease in the magnetic content. The effect of magnetite content on the dielectric properties of the polymer film at different frequencies from 0.01 to 105 Hz was studied using an electrochemical impedance spectroscopy. The possible mechanism for the observed electrical properties of the composite films was discussed. © 2010 Elsevier B.V. All rights reserved.
dc.identifier.citationPhysica B: Condensed Matter, 2010, 405, 8, pp. 2078-2082
dc.identifier.issn9214526
dc.identifier.urihttps://doi.org/10.1016/j.physb.2010.01.106
dc.identifier.urihttps://idr.nitk.ac.in/handle/123456789/27476
dc.subjectBand gaps
dc.subjectDifferent frequency
dc.subjectElectrical and magnetic property
dc.subjectElectrical property
dc.subjectHydrothermal process
dc.subjectMagnetic composites
dc.subjectMagnetite contents
dc.subjectMagnetite particles
dc.subjectMagnetite powder
dc.subjectNano powders
dc.subjectNanometer size
dc.subjectTEM
dc.subjectUltra-sonication
dc.subjectUV visible spectroscopy
dc.subjectChitin
dc.subjectChitosan
dc.subjectComposite films
dc.subjectDielectric properties of solids
dc.subjectElectric properties
dc.subjectElectrochemical corrosion
dc.subjectElectrochemical impedance spectroscopy
dc.subjectElectrochemical properties
dc.subjectMagnetic materials
dc.subjectMagnetic properties
dc.subjectMagnetism
dc.subjectMagnetite
dc.subjectOxide minerals
dc.subjectPolymer films
dc.subjectTransmission electron microscopy
dc.subjectUltraviolet spectroscopy
dc.subjectX ray diffraction
dc.subjectSaturation magnetization
dc.titleElectrical and magnetic properties of chitosan-magnetite nanocomposites

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