Background and Introduction: Metal oxides (MOs) have been extensively used in a
large range of engineering and medical applications.
Methods: FeCo nanoparticles (NPs) were successfully synthesized by the solgel method in the presence
of a powerful reducing agent-sodium borohydride (NaBH4). The structure, morphology, and
optical properties of NPs were analyzed by X-ray diffraction (XRD), field effect scanning electron
microscopy (FESEM), transmission electron microscopy (TEM), and Fourier transform infrared
spectroscopy (FTIR) at room temperature.
Result: The XRD spectrum showed the body center cubic (BCC) structure of the samples after
heat treatment at 500 °C. The SEM analysis exhibited that the particle size of as-synthesized and annealed
samples was approximately 40 nm and 22 nm, respectively.
Conclusion: The TEM investigations showed the rod-shaped sample of annealed NPs. The optical
studies of the FTIR analysis revealed the starching bound of Fe-Co at the frequencies of 673 cm-1,
598 cm-1, and 478 cm-1.