Nanomaterials (Dec 2022)

The Influence of Zn Substitution on Physical Properties of CoFe<sub>2</sub>O<sub>4</sub> Nanoparticles

  • Adam Szatmari,
  • Rares Bortnic,
  • Gabriela Souca,
  • Razvan Hirian,
  • Lucian Barbu-Tudoran,
  • Fran Nekvapil,
  • Cristian Iacovita,
  • Emil Burzo,
  • Roxana Dudric,
  • Romulus Tetean

DOI
https://doi.org/10.3390/nano13010189
Journal volume & issue
Vol. 13, no. 1
p. 189

Abstract

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Co1−xZnxFe2O4 nanoparticles (0 ≤ x ≤ 1) have been synthesized via a green sol–gel combustion method. The prepared samples were studied using X-ray diffraction measurements (XRD), transmission electron microscopy (TEM), Raman, and magnetic measurements. All samples were found to be single phases and have a cubic Fd-3m structure. EDS analysis confirmed the presence of cobalt, zinc, iron, and oxygen in all studied samples. Raman spectra clearly show that Zn ions are preferentially located in T sites for low Zn concentrations. Due to their high crystallinity, the nanoparticles show high values of the magnetization, which increases with the Zn content for x MNPs as the H is increased from 20 to 60 kA/m.

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