Electrophysical and Morphological Properties of a Hydrothermally Synthesized CuFe2O4 and CuFe2O4 / Reduced Graphene Oxide Composite
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Published:2021-06-16
Issue:2
Volume:22
Page:372-379
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ISSN:2309-8589
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Container-title:Physics and Chemistry of Solid State
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language:
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Short-container-title:Phys. Chem. Solid St.
Author:
Kotsyubynsky V.O.,Boychuk V.M.,Zapukhlyak R.I.,Hodlevskyi M.A.,Budzulyak I.M.,Kachmar A.I.,Hodlevska M.A.,Turovska L.V.
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.
Publisher
Vasyl Stefanyk Precarpathian National University
Subject
Physical and Theoretical Chemistry,Condensed Matter Physics,General Materials Science