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Title: Structural and electrical properties of nickel-iron spinel/reduced graphene oxide nanocomposites
Authors: Boychuk, Volodymyra
Kotsyubynsky, V.
Bandura, Khrystyna
Rachii, B. I.
Yaremiy, I. P.
Fedorchenko, Sofia
Бойчук, Володимира Михайлівна
Коцюбинський, Володимир Олегович
Keywords: Nckel iron spinel; reduced graphene oxide; hydrothermal synthesis; electrical conductivity; Mossbauer spectroscopy
Issue Date: Jun-2019
Publisher: Molecular Crystals and Liquid Crystals
Citation: V. M. Boychuk, V. O. Kotsyubunsky, Kh. V. Bandura, B. I. Rachii, I. P. Yaremiy & S. V. Fedorchenko (2018) Structural and electrical properties of nickel-iron spinel/reduced graphene oxide nanocomposites, Molecular Crystals and Liquid Crystals, 673:1, 137-148, DOI: 10.1080/15421406.2019.1578503
Series/Report no.: Volume 673, Issue 1;
Abstract: Nickel iron spinel/reduced graphene oxide composite material was synthesized by simultaneous hydrothermal treatment of nickel and ferric nitrates and graphene oxide colloidal solution obtained using Hummers method. XRD, SEM, Mossbauer spectroscopy, impedance spectroscopy and low temperature nitrogen adsorption were used for materials characterization. The electrical conductivity mechanisms for pure nickel ferrite, reduced graphene oxide and nickel iron spinel/reduced graphene oxide composite were investigated with the determination of activation energy values. Synchronous hydrothermal synthesis of nickel ferrite and the reduction of graphene oxide allow obtaining novel functional material that consists of oxide nanoparticles spaced by carbon fragments.
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