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Peculiarities of the Crystal-Chemical Structure of Spinel Ferrites CoxFe3-xO4 (0.25 ≤ x ≤1) Obtained Under the Action of a Low-Temperature Contact Nonequilibrium Plasma

  • L. A. Frolova
  • O. A. Pivovarov
  • O. A. Kushnerov
  • N. M. Tolstopalova
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 214)

Abstract

Nanocrystalline powder of spinel ferrites Co x Fe3-xO4(0.25 ≤ x ≤1) was synthesized by coprecipitation methods followed by treatment with low-temperature contact nonequilibrium plasma (CNP). Structural characteristics of the samples were carried out using powder X-ray diffraction and Fourier-transform infrared (FTIR) spectroscopy. The cation distribution over tetrahedral and octahedral sites was evaluated by analyzing X-ray diffraction patterns using the Poix method. The results show the existence of samples in the form of a mixed-type spinel with a cubic structure. It was found that the distribution of cations and structural parameters strongly depends on the cation ratio. The vibrational modes of the octahedral and tetrahedral metal complex in the sample were studied using FTIR in the wave number ranging from 390 to 4000 cm−1. The observed absorption bands in this range confirm the spinel structure of the sample.

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • L. A. Frolova
    • 1
  • O. A. Pivovarov
    • 1
  • O. A. Kushnerov
    • 2
  • N. M. Tolstopalova
    • 3
  1. 1.Ukrainian State Chemical Technology UniversityDniproUkraine
  2. 2.Oles Honchar Dnipropetrovsk National UniversityDniproUkraine
  3. 3.National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”KyivUkraine

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