Dielectric Properties of Reduced Graphene Oxide with Nickel Cobalt Ferrite and Nickel Zinc Ferrite Epoxy Nanocomposites

Open Access

Year : 2024 | Volume :11 | Special Issue : 11 | Page : 28-37
By

Manuel George1*

P.P. George

  1. 1Associate Professor Department of Mechanical Engineering Kerala India
  2. Professor Department of Basic Sciences Kerala India

Abstract

In this work, two systems of the composite were prepared using NiCoFe and NiZnFe with reduced graphene oxide(rGO) epoxy and the samples were subjected to electrochemical impedance spectroscopy (EIS). The Quality factor and loss tangent values of the composite was found out as a function of frequency. The modified ferrite-graphene-epoxy blends show dielectric loss and Quality factor values at low frequency. The incorporation of graphene aims to improve electrical conductivity, while the magnetic nanoparticles contribute to enhanced dielectric permittivity. The fabrication process involves the dispersion of these nanofillers within the epoxy matrix, followed by thorough characterization of the resulting nanocomposites using techniques such as impedance spectroscopy and scanning electron microscopy. NiZnFe-rGO obtained higher Quality factor in the intermediate concentration at higher frequencies but the loss tangent obtained least in the higher frequency range. The dielectric loss was least with NiCoFe-rGO which is due to the decrease of grain size at the same time dielectric loss was high for NiZnFe-rGO. Thus, a synergistic effect obtained with multifunctional fillers on the dielectric constant, dielectric loss, and electrical conductivity of the nanocomposites. The study aims to provide insights into the tailored design of advanced dielectric materials for applications in electronic devices, capacitors, and electromagnetic shielding, exploiting the unique properties of graphene and magnetic nanoparticles in epoxy nanocomposites

Keywords: Quality factor, dielectric constant, loss tangent, frequency range, graphene, epoxy

[This article belongs to Special Issue under section in Journal of Polymer and Composites(jopc)]

How to cite this article: Manuel George1*, P.P. George. Dielectric Properties of Reduced Graphene Oxide with Nickel Cobalt Ferrite and Nickel Zinc Ferrite Epoxy Nanocomposites. Journal of Polymer and Composites. 2024; 11(11):28-37.
How to cite this URL: Manuel George1*, P.P. George. Dielectric Properties of Reduced Graphene Oxide with Nickel Cobalt Ferrite and Nickel Zinc Ferrite Epoxy Nanocomposites. Journal of Polymer and Composites. 2024; 11(11):28-37. Available from: https://journals.stmjournals.com/jopc/article=2024/view=137933

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Special Issue Open Access Original Research
Volume 11
Special Issue 11
Received December 5, 2023
Accepted January 29, 2024
Published April 2, 2024
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