Magnetic properties and kinetic roughening study of prepared polyaniline: lead ferrite, cobalt ferrite and nickel ferrite nanocomposites electrodeposited thin films

Leila Abbasi,Kambiz Hedayati,Davood Ghanbari

doi:10.1007/s10854-021-06006-1

Abstract

The purpose of this study is preparation of polyaniline–lead ferrite, polyaniline–cobalt ferrite and polyaniline/nickel ferrite thin layers. The electromagnetic pollution is a serious problem in the world that can be solved by electromagnetic interference (EMI) shielding. The EMI layers can be synthesized by conductive layer composed by magnetic particles. Crystallite size of samples was studied by (XRD) analyze via Debye–Scherrer and Williamson–Hall equations. The X-ray diffraction XRD patterns confirm the crystalline structure of the samples. The surface morphology of the composite layers was investigated by scanning electron microscopy (SEM) and the effect of thickness and different composed particles was investigated. The percentage of the constituents and purity of samples was studied by energy dispersive X-ray analysis (EDX) analysis. Also, surface roughness and kinetic roughening of thin films was investigated using atomic force microscopy (AFM). Hysteresis loop of the magnetic samples were analyzed by vibrating sample magnetometer (VSM). These new easy prepared nanocomposites introduce a suitable and effective coating for electromagnetic interference (EMI) shielding.

Highlights

The electromagnetic pollution has been arising from mobile phones, radar systems, computers another electronic devices
As we expected nanocomposite with 1 g cobalt ferrite have more nanoparticles in comparison to nanocomposite with 0.1 g cobalt ferrite
According to SEM analysis, the ferrite nanoparticles were dispersed homogeneously in the polyaniline thin layer and the larger nanoparticles make the larger grains in the polymer matrix

Summary

Introduction

The electromagnetic pollution has been arising from mobile phones, radar systems, computers another electronic devices. It has become electromagnetic pollution where can be compared with other pollution like water and air pollution and it is necessary to dissolve this problem [1]. Different EMI shielding procedures have been expanded for decrease the possibility of incidence of the aforesaid dangers [2]. Carbon-based nanostructures shielding materials have expand considerable attractive due to good flexibility, small density and high electrical conductivity. Magnetic iron oxide nanoparticles or ferrites are effective magnetic materials for the uses in sensors, catalysis and other magnetic devices [7,8]. Ferrites can be classified in spinel ferrites, hexagonal ferrites and garnet ferrites categories between these, spinel ferrites have substantial significance for researchers because of their high saturation magnetization, small coercivity, large magneto crystalline anisotropy and high

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Conclusion