A Comparative Analysis of Structural, Optical and Electrical Properties of Polyaniline/Ferrite (Co, Ni, Cu, Zn) Composites

Abstract

Considering the magnificent optical and electric properties of polyaniline (PANI), in this study, PANI, PANI/MFe2O4 (M = Co, Ni, Cu, and Zn) composites were studied. Polyaniline and their composites with ferrites were prepared via chemical oxidation method. Ferrites were synthesized through co-precipitation method. Structural properties were investigated using X-Ray diffraction (XRD) and Fourier Transform Infrared spectroscopy (FTIR) respectively. Their results reveal the semi-crystalline nature of synthesized materials with the crystallite size in the range of 21.78 to 37.20 nm. Scanning electron microscope (SEM) analysis also confirmed the formation of all the nano-sized synthesized composites. In the UV-Vis analysis, the optical band gap of composites is reducing upto 1.01 eV for PANI-cobalt ferrite as compared to pure PANI (2.38 eV). The inclusions of ferrites particles have caused an enhancement in electrical conductivity of pure PANI. It is 3*10-4 S/cm at high frequency for PANI and increased upto 5*10-4 S/cm for PANI-Zinc Ferrite composite. The investigated data shows the enhanced optical and electric properties of PANI/ferrites composites to a great extent, making them promising materials for different applications.

An amplified electrochemical sensor employing one-step synthesized nickel–copper–zinc ferrite/carboxymethyl cellulose/graphene oxide nanosheets composite for sensitive analysis of omeprazole

“…37 Recently, much research has been conducted to explore the properties of Ni-Cu-Zn ferrite and develop its applications as a new nanocomposite. [38][39][40][41][42] The use of carbon nanomaterial composites such as graphene oxide, reduced graphene oxide, carbon nanotubes composites in the recent years have attracted much attention in electrode modication processes due to their suitable properties such as high surface area, conductivity and stability. Also, decrease of the required overpotential of the electrochemical reactions is one of the catalytic properties of hybrids of carbon nanomaterials.…”

“…37 Recently, much research has been conducted to explore the properties of Ni–Cu–Zn ferrite and develop its applications as a new nanocomposite. 38–42…”

Synthesis, Characterization and Investigation of Optical and Electrical Properties of Polyaniline/Nickel Ferrite Composites

“…The XRD pattern is seen in Figure 3, with peaks due to ferrites and polyaniline. The peaks less than 1000 cm −1 are due to ferrites, which occur at 512 cm −1 and 591 cm −1 and are attributed to the vibrations of metal ion and oxygen bonding at octahedral and tetrahedral sites, respectively, in the spinel structure [31], and FTIR peaks due to polyaniline are explained in Table 1 [32]. In the composites, the wavenumbers shift slightly to lower wavenumbers in the higher percentages of ferrites, which is attributed to the interaction of ferrites with polymer chains [33].…”

Enhancement of electrical parameters of PANI—A conducting polymer with low concentration nanofiller for optoelectronic and electrical application

“…Patil et al 14 reported the electric behavior of PANI/ ZnFe 2 O 4 and found that 30 wt% of ZnFe 2 O 4 in the polymer matrix exhibited an enhancement in the conductivity of the polyaniline and their values are found to be in the semiconducting range. PANI, PANI/MFe 2 O 4 (M = Co, Ni, Cu, and Zn) composites were studied by Swati Sehrawat et al 15 According to their findings, the addition of ferrite particles increased the electrical conductivity of pure PANI. The electrical conductivity of pure PANI was found to be 3 Â 10 À4 S cm À1 , while for PANI-zinc ferrite composite was found to be 5 Â 10 À4 S cm À1 .…”

“…PANI, PANI/MFe 2 O 4 (M = Co, Ni, Cu, and Zn) composites were studied by Swati Sehrawat et al 15 According to their findings, the addition of ferrite particles increased the electrical conductivity of pure PANI. The electrical conductivity of pure PANI was found to be 3 × 10 −4 S cm −1 , while for PANI‐zinc ferrite composite was found to be 5 × 10 −4 S cm −1 .…”