Enhancement of magnetic and dielectrics performance of BaFe2O4 nanoparticles influenced by tri-sodium citrate as surfactant

• Published in: Journal of materials science. Materials in electronics 2022-10, Vol.33 (30), p.23841-23850
• Main Authors: Dilip, R., Ravikumar, K., Chandekar, Kamlesh V., Shkir, Mohd, Krishnan, V. Gopala, Shinde, Keshav S., Ashraf, I. M.
• Format: Article
• Language: English
• Subjects: Barium hexaferrite; Characterization and Evaluation of Materials; Chemistry and Materials Science; Ferromagnetism; Field emission microscopy; Fourier transforms; Infrared spectra; Infrared spectroscopy; Magnetic properties; Magnetometers; Materials Science; Morphology; Nanoparticles; Optical and Electronic Materials; Size effects; Sodium citrate; Spectrum analysis
• ISSN: 0957-4522; 1573-482X
• DOI: 10.1007/s10854-022-09142-4

The barium ferrite (BaFe 2 O 4 ) nanoparticles (NPs) were synthesized with the self-burning process using different molar ratios of tri-sodium citrate. Structural, morphological, magnetic, and dielectrics performance of BaFe 2 O 4 NPs were analyzed by XRD, FESEM, VSM and impedance spectroscopy characterizations. The formation of BaFe 2 O 4 NPs was confirmed by XRD patterns with the prominent orientation at (212) planes. Fourier transform infrared spectroscopy spectra were observed at 770 cm −1 transforms the formation of BaFe 2 O 4 . The influence of different molar ratios of tri-sodium citrate, the morphology has changed from common agglomerated platelets shaped into mixed spherical/rod shaped, which is visualized by Field emission Scanning Electron microscopy. Magnetic properties of BeFe 2 O 4 NPs were confirmed by vibrating sample magnetometer and the prepared NPs induced ferromagnetic behavior due to inverse particle size effects. Dielectric constant and loss values of the prepared NPs were enhanced from 45.11 to 86.41 and from 3.21 to 4.81, respectively, which indicate changing the shape and size of the BaFe 2 O 4 NPs.