1. Sol–Gel Auto-combustion Preparation of M2+ = Mg2+, Mn2+, Cd2+ Substituted M0.25Ni0.15Cu0.25Co0.35Fe2O4 Ferrites and Their Characterizations
- Author
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Aslam, Asma, Rehman, Atta Ur, Amin, Nasir, Amami, Mongi, Nabi, M. Ajaz un, Alrobei, Hussein, Asghar, M., Morley, N. A., Akhtar, Maria, Arshad, Muhammad Imran, Maraj, Mudassar, and Abbas, Kamran
- Subjects
SELF-propagating high-temperature synthesis ,FERRITES ,DIELECTRIC loss ,SOL-gel processes ,ENERGY bands ,ACTIVATION energy - Abstract
Cost-effective and controllable synthesis of M
0.25 Ni0.15 Cu0.25 Co0.35 Fe2 O4 (M2+ = Mg2+ , Mn2+ , and Cd2+ ) ferrites via the sol–gel auto-combustion technique. The impact of divalent cations on the structural, dielectric, and optoelectrical properties of ferrites was examined by XRD, FTIR, Raman, LCR, UV–Vis, and two probe I-V measurement techniques. The crystallite size was 52.66 nm, and the minimum specific surface area was observed 5.1507 m2 /g for Mg2+ doped NCCF ferrite. The FTIR and Raman analysis also confirmed the substitution of divalent cations (M2+ = Mg2+ , Mn2+ , and Cd2+ ) at their respective lattice sites. The maximum energy bandgap was 1.67 eV Mg2+ -doped NCCF ferrite as compared to other divalent ion-doped ferrites. The dielectric loss decreased while the ac conductivity increased with increasing frequency, and the minimum values were observed for Mg2+ -doped NCCF ferrite. The activation energy was observed maximum for Mg2+ -doped NCCF ferrite (0.2234 eV). Due to incredible properties including small specific surface area, large energy band gap, high resistivity, and loss dielectric loss of Mg2+ -doped NCCF ferrite have potential applications in different fields. [ABSTRACT FROM AUTHOR]- Published
- 2022
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