Preparation and Study Some Properties of Ferrite Nanoparticles(CuxAl0.3-xNi0.7Fe2O4)

Tagreed M.  Al- Saadi; Shaimaa A.  Kadhim

doi:10.24996/ijs.2024.65.7.17

Authors

Tagreed M. Al- Saadi College of Education for Pure Science/Ibn Al- Haitham, University of Baghdad, Baghdad, Iraq
Shaimaa A. Kadhim College of Education for Pure Science/Ibn Al- Haitham, University of Baghdad, Baghdad, Iraq https://orcid.org/0009-0003-6740-0666

DOI:

https://doi.org/10.24996/ijs.2024.65.7.17

Keywords:

ferrite nanoparticles, structural properties, magnetic properties, NO2 gas, sensitivity

Abstract

The current study includes the preparation of Cu_xAl_0.3-xNi_0.7Fe₂O₄ ferrite nanoparticles where: x = 0, 0.05, 0.1, 0.15, 0.2, 0.25, and 0.3 using the auto combustion method (sol-gel). The citric acid was used as fuel for auto combustion. The X-ray diffraction (XRD) test showed an increase in the crystal lattice constant, which is of face-centered cubic (FCC) structure. Field Emission Scanning Electron Microscopy (FE-SEM) showed that the compound has apparent porosity; its grains are spherical or semi-spherical and within the nanoscale. The Energy-Dispersive X-ray spectroscopy (EDX) proved the presence of all the elements involved in the preparation of the compound, and there are no other elements, which means that it is of high purity. The vibrating sample magnetometer (VSM) showed that the hysteresis loop is small and narrow, meaning the wasted energy is as little as possible. In addition, it was found that the compound has good sensitivity to NO₂ gas.