Structural, Dielectric and Morphological Spectroscopy of Co0.9Al0.1Fe1.9Mg0.1O4/Chitosan Modified Reduced Graphene Oxide (rGO) Nanocomposites

N. Halilu; G. Mukhtar

Authors

N. Halilu Bauchi State University, Gadau, P.M.B. 65, Itas/Gadau
G. Mukhtar Bauchi State University, Gadau, P.M.B. 65, Itas/Gadau

Keywords:

Spinel ferrite, magnetic properties, structural properties

Abstract

A laboratory experiment was conducted for Structural, Dielectric and Morphological Spectroscopy of Co_0.9Al_0.1Fe_1.9Mg_0.1O₄/Chitosan Modified Reduced Graphene Oxide (rGO) Nanocomposites. Sol-Gel synthesized Al³⁺-Mg²⁺ cobalt ferrite (Co_0.9Al_0.1Fe_1.9Mg_0.1O₄) was successfully embedded on functionalized reduced graphene oxide. The sample was characterised using XRD, FTIR, FESEM. Phase analysis show the formation of cobalt ferrite with space group Fd3m. FTIR analysis gives an idea of the formation of cobalt ferrites by the appearance of two prominent peaks at 405 and 525 cm^-1. The morphology of the sample shows particles with shapes close to cubic structure. Raman spectra show the presence of D and G band. The dielectric properties were discussed based on Maxwell-Wagner model and Koop’s phenomenological theory. Cobalt ferrite exhibits interesting structural, dielectric, and impedance properties that make it suitable for various applications, such as microwave devices, sensors, and magnetic recording media.

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