The synthesis and characterization of electrical and magnetic nanocomposite: PEDOT/PSS–Fe3O4

The poly(3,4-ethylenedioxythiophene)/poly(styrene sulfonate)–Fe3O4 (PEDOT/PSS–Fe3O4) nanoparticles have been prepared by using polystyrene sulfonic sodium (NaPSS) as a dispersant and dopant. The characterization of nanocomposites was investigated by transmission electron microscope, X-ray diffraction, UV spectroscopy, electrochemical study, four-probe, thermogravimetric analysis and magnetic property measurement system. XRD revealed the presence of spinel phase of Fe3O4 and the average size was calculated to be about 12 nm. The conductivity of nanocomposites at room temperature is excellent and it depends on the Fe3O4 content. The thermal stability of composites is outstanding. Higher saturation magnetization of 6.47 emu g−1 (20 wt.% Fe3O4) was observed at 300 K.