Author(s): Rahul R. Upalaikar, Jyoti D Bhamare, ND Chaudhari, Gangadhar A Chavan and Waseem A Beg

Abstract: This research investigates the eco-conscious synthesis of nanocrystalline nickel ferrite (NiFe?O?) via a sol-gel method, employing lemon juice as a green reducing agent. Structural characterization through X-ray diffraction (XRD) confirmed the formation of a single-phase inverse spinel cubic structure with a lattice parameter of 8.345 Å and an average crystalline dimension of 34.91 nm. Fourier Transform Infrared Spectroscopy (FTIR) elucidated vibrational modes associated with tetrahedral and octahedral complexes, observed at 579 cm?¹ and 397 cm?¹, respectively. Morphological analysis using Transmission Electron Microscopy (TEM) revealed polycrystalline, agglomerated nanoparticles with irregular geometries. Magnetic characterization demonstrated pronounced ferrimagnetic behaviour, achieving a saturation magnetization of 47.28 emu/g, surpassing the performance metrics of analogous materials synthesized via conventional methodologies. Elastic property evaluation underscored isotropic elasticity, evidenced by a Poisson’s ratio of 0.283, and affirmed the ductile nature of the material through Pugh's criterion (B/G > 1.75). The study underscores the potential of sustainable, green synthesis techniques to fabricate high-performance nickel ferrite nanoparticles, emphasizing their applicability in advanced functional materials with superior structural and magnetic properties. Curie temperature of nickel ferrite is measured using thermal variation of initial permeability. Thermal variation of loss factor shows domain randomness in the sample near Curie temperature.

DOI: 10.22271/27078221.2025.v6.i2b.84

Pages: 97-104 | Views: 223 | Downloads: 99

Download Full Article: Click Here