Synthesis, Electric and Magnetic Characterization of Nickel Ferrite/PANI Nano-Composite Prepared by Flash Auto Combustion Method

Henaish, A. M. A.; Ali, Maha; Refaay, D.E. El; Weinstein, I. A.; Hemeda, O. M.

doi:10.1007/s10904-020-01737-w

Cited by 20 publications

(5 citation statements)

References 32 publications

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“…In the region of 1010–1170 cm −1 aromatic C-H, in-plane bending modes were usually observed, which correspond to a peak at 1494 cm −1 and the peak at 776 cm −1 is attributed to the out-of-plane deformation of C-H in the 1,4-disubstituted benzene ring. 45,46 The FTIR spectra of the NZF sample show two major broadbands for the ferrite samples, the higher band is observed at 564 cm −1 and the lower band is observed at 400 cm −1 . 47 The FTIR spectra of PANI–NZF nanocomposites show both PANI and NZF nanoparticle bands, with a minimal shift, thus confirming the interfacial interaction between PANI and NZF nanoparticles.…”

Section: Resultsmentioning

confidence: 99%

Enhanced gas-sensing performance at room temperature and electrical properties of polyaniline–Ni_0.6Zn_0.4Fe₂O₄ nanocomposites

Prasanna

Nagaraju³

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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In this work, polyaniline–nickel–zinc–ferrite nanocomposites were synthesized by the in situ polymerization method by varying the concentrations of Ni0.6Z0.4Fe2O4 nanoparticles in the polyaniline matrix (10, 20, 30, 40, and 50 wt%). The synthesized nanocomposites were subjected to structural characterizations viz., X-ray diffraction, Fourier-transform infrared spectroscopy, and field-emission scanning electron microscopy techniques. Fourier-transform infrared spectroscopy and X-ray diffraction spectral studies reveal the presence of characteristic bands of both polyaniline and Ni0.6Z0.4Fe2O4 nanoparticles and the formation of their composites is confirmed with the interfacial interaction of Ni0.6Z0.4Fe2O4 nanoparticles in the polyaniline systems. The field-emission scanning electron microscopy images of polyaniline–Ni0.6Z0.4Fe2O4 nanocomposites show a symmetric morphological variation of Ni0.6Z0.4Fe2O4 nanoparticles compared to polyaniline. The electrical properties of the prepared samples were studied in the frequency range of 100 Hz–5 MHz at room temperature. The gas-sensing performance of the nanocomposites was studied at room temperature for butane gas. The polyaniline–10 wt% Ni0.6Z0.4Fe2O4 nanocomposite shows maximum sensing response (109%) at room temperature for 5000 ppm of butane gas with a good response of 28 s and recovery time of 31 s. The stability of the prepared sample was tested for 60 days.

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Section: Resultsmentioning

confidence: 99%

Enhanced gas-sensing performance at room temperature and electrical properties of polyaniline–Ni_0.6Zn_0.4Fe₂O₄ nanocomposites

Prasanna

Nagaraju³

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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“…The activation energy calculated for polyaniline and its different composites are listed in Table 2. Henaish AM et al also found that the activation en of polyaniline/ferrite decreased with increasing ferrite content [38]. The decreased a tion energy among the composites supports the increased electrical conductivity i composites 𝜎 = 𝜎 𝑒𝑥𝑝 𝑒𝑥𝑝 −𝐸 𝑘 𝑇 UV-visible absorption was studied to understand the optical properties of polyaniline/nickel ferrite composites.…”

Section: Ac and DC Conductivitymentioning

confidence: 98%

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

Kolhar,

Sannakki,

Verma

et al. 2023

Nanomaterials

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Nickel ferrite nanoparticles are prepared by using a low-temperature self-propagating solution combustion method using urea as fuel. The prepared nickel ferrite nanoparticles were doped with polyaniline in the three different weight ratios of 10%, 30% and 50% by using an in situ polymerization method and by adding ammonium persulfate as an oxidizing agent. The obtained samples were characterized by using XRD, FTIR, SEM and a UV–visible spectrophotometer. XRD examined crystalline peaks of ferrites and amorphous peak of polyaniline and confirmed the formation of the composites. FTIR examined the chemical nature of samples and showed peaks due to polyaniline and the characteristic peaks that were less than 1000 cm−1 wavenumber were due to metal–oxygen bond vibrations of ferrites. AC conductivity increased with frequency in all samples and the highest AC conductivity was seen in polyaniline/nickel ferrite 50%. DC conductivity increased in all samples with the temperature showing the semiconducting nature of the samples. Activation energy was evaluated by using Arrhenius plots and there was a decrease in activation energy with the addition of ferrite content. The UV–visible absorption peaks of polyaniline showed shifting in the composites. The optical direct and indirect band gaps were evaluated by plotting Tauc plots and the values of the optical band gap decreased with addition of ferrite in polyaniline and the Urbach energy increased in the samples with 10%, 30% and 50% polyaniline/nickel ferrite composites. The optical properties of these composites with a low band gap can find applications in devices such as solar cells.

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“…72-0634. The diffraction peak at 25.47 obtain that the PANI with good degree of crystallinity 19,20) . In addition to shift diffraction peak of PANI, the maximum diffraction peak of anatase shifted to low position due to incorporated (Ti 4＋ ) ions with the high radii (Sm 3＋ ) ions in the matrix of nanocomposite 22) .…”

Section: Xrd Analysismentioning

confidence: 99%

In situ Polymerization of Polyaniline/Samarium Oxide - Anatase Titanium Dioxide (PANI/Sm2O3-TiO2) Nanocomposite: Structure, Thermal and Dielectric Constant Supercapacitor Application Study

2022

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In the last years, a major attention has been concentrated on the fabricate of conducting polymers doping by nanoparticles because of its unrivaled chemical and physical properties 1−3) . in from between the polymers, polyaniline (PANI) has a large attention to researchers and most widely investigated since it shows excellent stability, ease of prepare, tunable properties, low cost and wide use in electric application such as gas sensor, supercapacitor and batteries 4−7) . Polyaniline with among metal oxide nanoparticles have been studied widely due to their unique size dependent chemical and physical properties creation via the inserting of oxide nanoparticles in the matrix of polymer 8,9) . Clearly this enhances the electrical conductivity, thermal stability, mechanical properties and conductivity process ability for the matrix of polymer. Usually, there are two methods utilize for synthesis PANI-metal oxide nanocomposite. The most commonplace and generally tried method

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Synthesis, Electric and Magnetic Characterization of Nickel Ferrite/PANI Nano-Composite Prepared by Flash Auto Combustion Method

Cited by 20 publications

References 32 publications

Enhanced gas-sensing performance at room temperature and electrical properties of polyaniline–Ni_0.6Zn_0.4Fe₂O₄ nanocomposites

Enhanced gas-sensing performance at room temperature and electrical properties of polyaniline–Ni_0.6Zn_0.4Fe₂O₄ nanocomposites

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

<i>In situ</i> Polymerization of Polyaniline/Samarium Oxide - Anatase Titanium Dioxide (PANI/Sm<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub>) Nanocomposite: Structure, Thermal and Dielectric Constant Supercapacitor Application Study

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Synthesis, Electric and Magnetic Characterization of Nickel Ferrite/PANI Nano-Composite Prepared by Flash Auto Combustion Method

Cited by 20 publications

References 32 publications

Enhanced gas-sensing performance at room temperature and electrical properties of polyaniline–Ni0.6Zn0.4Fe2O4 nanocomposites

Enhanced gas-sensing performance at room temperature and electrical properties of polyaniline–Ni0.6Zn0.4Fe2O4 nanocomposites

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

<i>In situ</i> Polymerization of Polyaniline/Samarium Oxide - Anatase Titanium Dioxide (PANI/Sm<sub>2</sub>O<sub>3</sub>-TiO<sub>2</sub>) Nanocomposite: Structure, Thermal and Dielectric Constant Supercapacitor Application Study

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Enhanced gas-sensing performance at room temperature and electrical properties of polyaniline–Ni_0.6Zn_0.4Fe₂O₄ nanocomposites

Enhanced gas-sensing performance at room temperature and electrical properties of polyaniline–Ni_0.6Zn_0.4Fe₂O₄ nanocomposites