Electrophysical and Morphological Properties of a Hydrothermally Synthesized CuFe2O4 and CuFe2O4 / Reduced Graphene Oxide Composite

V.O. Kotsyubynsky; V.M. Boychuk; R.I. Zapukhlyak; M.A. Hodlevskyi; I.M. Budzulyak; A.I. Kachmar; M.A. Hodlevska; L.V. Turovska

doi:10.15330/pcss.22.2.372-379

Authors

V.O. Kotsyubynsky Vasyl Stefanyk Precarpathian National University
V.M. Boychuk Vasyl Stefanyk Precarpathian National University
R.I. Zapukhlyak Vasyl Stefanyk Precarpathian National University
M.A. Hodlevskyi Vasyl Stefanyk Precarpathian National University
I.M. Budzulyak Vasyl Stefanyk Precarpathian National University
A.I. Kachmar Poznan University of Technology
M.A. Hodlevska Vasyl Stefanyk Precarpathian National University
L.V. Turovska Ivano-Frankivsk National Medical University

DOI:

https://doi.org/10.15330/pcss.22.2.372-379

Keywords:

copper ferrite, reduced graphene oxide, Mossbauer spectroscopy, pore size distribution, electrical conductivity

Abstract

The aim of this paper is to compare the structural, morphological and electrical properties of the CuFe₂O₄ and CuFe₂O₄ / reduced graphene oxide composite. XRD and Mossbauer studies have shown that joint hydrothermal synthesis of cubic copper ferrite and reduction of graphene oxide leads to a decrease in ferrite particles from 14 to 8 nm. Based on the impedance spectroscopy data, a model of the obtained composite material has been prepared as a system consisting of contacting spinel particles covered with rGO clusters and separated by porous rGO. For CuFe₂O₄ / rGO composite material, the predominance of hopping charge transfer mechanisms has been shown, and the activation energies of electrical conductivity of grains and grain boundaries have been calculated.

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