• Liliya Frolova Ukrainian State University of Chemical Technology, Dnipro, Ukraine
  • Dmytro Saltykov Oles Honchar Dnipro National University, Dnipro, Ukraine
  • Mykhailo Sukhyy , Ukrainian State University of Chemical Technology, Dnipro, Ukraine



ferrite, polyvinyl alcohol, composite, IR spectroscopy, saturation magnetization


In recent years, developments in the field of technologies for obtaining microwave absorption materials have received significant development. Currently, when a huge number of devices that are potential sources of electromagnetic waves are used, a problem has arisen related to the emergence of electromagnetic radiation that disrupts the operation of electronic devices, affects the environment and people.

In this work, a PVA-CoFe1.97Ce0.03O4 composite was synthesized. The morphology and structure of the starting materials and the composite were characterized using scanning electron microscopy, X-ray diffractometry, and infrared spectroscopy. Magnetic parameters were measured using a vibration magnetometer. The absorption capacity of the obtained materials was evaluated based on the results of measuring the transmission and reflection coefficients using a P2-61 panoramic meter in the range of 8-12 GHz.

The particle size is approximately 8-12 nm. In the X-ray pattern of CoFe1.97Ce0.03O4, it was found that there are extended but easily identifiable peaks. A significant broadening of all diffraction peaks and their low intensity is observed. For the most intense peak at (2q=40.70), the broadening of the peak to 3.1° full width at half-height is observed, which corresponds to the presence of nanosized CoFe1.97Ce0.03O4 crystallites. In addition, the presence of cerium cations with a much larger radius is also evident. The X-ray pattern of PVA-CoFe1.97Ce0.03O4 has small ferrite peaks. IR spectra showed the chemical interaction of polyvinyl alcohol and hydroferrite.

The results show that the absorption characteristics of the PVA-CoFe1.97Ce0.03O4 composition are 7.97-10.78 dB/mm. Effective absorption is observed in the frequency range of 8-10 GHz and indicates the absorption of electromagnetic radiation in this frequency range.

Author Biographies

Liliya Frolova , Ukrainian State University of Chemical Technology, Dnipro, Ukraine

Doctor of technical sciences, professor, professor of the department of technology of inorganic substances and ecology

Dmytro Saltykov, Oles Honchar Dnipro National University, Dnipro, Ukraine

PhD of Physical and Mathematical Sciences, Associate Professor, Associate Professor of the Department of Applied Radiophysics, Electronics and Nanomaterials

Mykhailo Sukhyy , , Ukrainian State University of Chemical Technology, Dnipro, Ukraine



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