Synthesis and Characterization of Electromagnetic Functionalized Polyoyrrole/γ-Fe2O3 Nanospheres by Chemical One-step Method

A "Chemical one-step method" (COSM) was used to prepare the electromagnetic functionalized polypyrrole/gamma-Fe2O3(PPy/gamma-Fe2O3) nanospheres without any dopant. In this method, FeCl3 acted as an oxidant for the polymerization of pyrrole and as a source of gamma-Fe2O3, which also required the initial presence of Fe(II), provided by the addition of FeCl2. In this paper, the amount of FeCl2 had little effect on the morphology; however, the conductive and magnetic properties of PPy/gamma-Fe2O3 nanospheres were greatly affected by the amount of FeCl2. The conductive and magnetic properties of PPy/gamma-Fe2O3 nanospheres increased and reached maximum values simultaneously with increasing amounts of FeCl2. The resulting electromagnetic PPy/gamma-Fe2O3 nanospheres show maximum conductivity of 72. 1 S/cm and saturation magnetization of 10. 07 A . m(2)/kg.