Preparation, Characterization, Magnetic and Electrical Conductivity Studies of NiFe2O4 Nanofibers

Researchers are currently focusing on nanocrystalline spinel ferrites (MFe2O4) due to their use in various applications such as magneto-optics, ferrofluids, spintronics, magnetic storage media,biomedical and microwave devices, etc. Ferrites are also used as a source for energy, humidity sensors, and a lithium-ion battery anode in addition to the electronic and magnetic usages. The NiFe2O4 nanofibers were prepared using electrospinning. XRD, FTIR studies support the production of NiFe2O4nanofibers from cubic spinel. AFMresults confirm the formation of NiFe2O4 nanofibers, as well as the parameters of roughness. The impedance measurementsof NiFe2O4 nanofiberelectrical conductivity is 6.39 x 10⁻⁶ S cm ¹at 300 K,and were performed with different temperatures and frequencies.