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Structural, magnetic and electrochemical properties of Al-substituted Ni ferrites for energy storage devices by Shahid Hassan; Mukhtar Ahmad; Atiq ur Rehman; Muhammad Waqas Iqbal; Saleem Farooq Shaukat; Hisham S.M. Abd-Rabboh is a Engineering article available to read on EtoBox.

Ferrite material can be promising materials to solve the global energy crisis and high energy density storage devices. For this, hydrothermally prepared Al substituted Ni ferrites (NiAlxFe2-xO4, x = 0.0, 0.1, 0.2) have been investigated. To study the effect of substitution of Al on Ni ferrite's structural, magnetic and electrical properties. X-ray diffraction, scanning electron microscopy, Energy dispersive spectrum, Fourier transforms Infrared spectroscopy (FTIR), Vibrating sample magnetometer (VSM), Two Probe technique and cyclic voltammetry (CV) was used to characterize the samples. A single-phase spinel structure was confirmed by XRD diffraction, and the lattice parameter was reduced from 8.40 Å to 8.25 Å. SEM micrographs showed nanoparticles are agglomerated and are non-uniform in size. EDX analysis confirmed that substitution had been successfully achieved. The FTIR spectrum revealed that the absorption band of the octahedral site is around 650 cm−1 for pure Ni ferrite, and this band shifted toward higher frequency with increasing the Al content because substitution of Al reduces the bond length. The M-H loops justified that substitution of nonmagnetic Al (0μB) decreased the

Author

Shahid Hassan; Mukhtar Ahmad; Atiq ur Rehman; Muhammad Waqas Iqbal; Saleem Farooq Shaukat; Hisham S.M. Abd-Rabboh

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Engineering (Physical Sciences)