Silver nanoparticles embedded polyaniline/Mg0.5Cu0.5Fe2O4 core-shell nanocomposite for EMI shielding

In this report, ternary nanocomposite Polyaniline/Mg0.5Cu0.5Fe2O4 decorated with Ag particles has successfully synthesized. The synthesis route is based upon mixing the silver particles via the chemical oxidation polymerization of aniline monomer doped with ferrites in different weight ratio. This nanocomposite has been analyzed by XRD, TEM, TGA, and VSM for the crystalline, structural, thermal and magnetic properties. XRD and TEM confirm the formation of ferrites and polyaniline phases in the sample with silver particles. VSM characterization shows that the saturation magnetization of the Polyaniline/Mg0.5Cu0.5Fe2O4 composite decreases on coating with nanosilver particles. Thermogravimetric analysis reveals that the mixing of ferrites and silver nanoparticles in PANI has improved its thermal stability. These samples having good thermal, magnetic and conducting properties are expected to be useful in electromagnetic interference shielding applications.