Synthesis and ferrimagnetic properties of novel Sm-substituted LiNi ferrite–polyaniline nanocomposite |
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| Affiliation: | 1. Department of Electronics Technology, Guru Nanak Dev University, Amritsar 143005, India;2. Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India;1. Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic;2. Materials Research Centre, Brno University of Technology, Purkyňova 464/118, 61200 Brno, Czech Republic;3. Institute of Inorganic Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, SK-845 36 Bratislava, Slovak Republic;4. Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, SK-841 04 Bratislava, Slovak Republic;5. Institute of Physics, Slovak Academy of Sciences, Dúbravská cesta 9, SK-845 11 Bratislava, Slovak Republic;1. School of Technology, GITAM University, Bengaluru Rural 561203, India;2. Vignan''s Institute of Engineering for Women, Visakhapatnam 530046, India;3. Department of Physics, Andhra University, Visakhapatnam 530003, India |
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| Abstract: | Polyaniline (PANI)–LiNi0.5Sm0.08Fe1.92O4 nanocomposite was synthesized by an in situ polymerization of aniline in the presence of LiNi0.5Sm0.08Fe1.92O4 ferrite. The products were characterized by powder X-ray diffractometer (XRD), Fourier transform infrared (FTIR) and UV–visible absorption spectrometer, thermogravimetric analyser (TGA), atomic force microscope (AFM) and vibrating sample magnetometer (VSM). The results of XRD, FTIR and UV–visible spectra confirmed the formation of PANI–LiNi0.5Sm0.08Fe1.92O4 composite. AFM study showed that ferrite particles had an effect on the morphology of the composite. TGA revealed that the incorporation of ferrite improved the thermal stability of PANI. The nanocomposite under applied magnetic field exhibited the hysteresis loops of ferrimagnetic nature at room temperature. The bonding interaction between ferrite and PANI in the nanocomposite had been studied. |
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