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Magnetic, electrical and gas sensing properties of poly(o-phenylenediamine)/MnCoFe2O4 nanocomposites
Kannapiran N., Muthusamy A., B. Renganathan, , Meena S.S.
Published in Springer
Volume: 126
Issue: 12
A series of poly(o-phenylenediamine)/MnCoFe2O4 nanocomposites containing varying concentrations of MnCoFe2O4 were synthesized by in situ oxidative polymerization method. These nanocomposites were characterized by thermal, spectroscopic, microscopic techniques and dielectric properties analyzed at different temperature and frequency. X-ray diffraction and Fourier-transform infrared spectra are confirming the formation of poly(o-phenylenediamine)/MnCoFe2O4 nanocomposites. The Mössbauer spectral data are indicating the inverse nature of MnCoFe2O4 nanoparticles. The ferromagnetic behavior of nanocomposites is ascertained with the hysteresis loops of MnCoFe2O4. Transmission electron microscopy results are giving good evidences for the deposition of MnCoFe2O4 nanoparticles on the poly(o-phenylenediamine) matrix and the modification of spherical morphology of poly(o-phenylenediamine) by MnCoFe2O4. The thermal stability of poly(o-phenylenediamine)/MnCoFe2O4 nanocomposites is increasing with increase in the concentration of MnCoFe2O4 nanoparticles. Dielectric constant and AC conductivity of nanocomposites are varying with applied frequency, temperature and concentration of MnCoFe2O4 nanoparticles. The ethanol gas sensing ability of MnCoFe2O4 has been improved by poly(o-phenylenediamine) matrix. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
About the journal
JournalData powered by TypesetApplied Physics A: Materials Science and Processing
PublisherData powered by TypesetSpringer
Open AccessNo