Find in Library
Search millions of books, articles, and more
Indexed Open Access Databases
Electrophysical and Morphological Properties of a Hydrothermally Synthesized CuFe2O4 and CuFe2O4 / Reduced Graphene Oxide Composite
oleh: V.O. Kotsyubynsky, V.M. Boychuk, R.I. Zapukhlyak, M.A. Hodlevskyi, I.M. Budzulyak, A.I. Kachmar, M.A. Hodlevska, L.V. Turovska
Format: | Article |
---|---|
Diterbitkan: | Vasyl Stefanyk Precarpathian National University 2021-06-01 |
Deskripsi
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.