Study of Zn‐Cu Ferrite Nanoparticles for LPG Sensing

Jain, Anuj; Baranwal, Ravi Kant; Bharti, Ajaya; Vakil, Z.; Prajapati, Chandra Shekhar

doi:10.1155/2013/790359

Cited by 41 publications

(22 citation statements)

References 29 publications

(31 reference statements)

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“…CuZnFe 2 O 4 has spinel cubic structure. 8.450 Å respectively which agrees with the standard value 8.443 Å [17]. The average crystallite size (D) as estimated from line broadening in X-ray diffraction using Scherrer's formula, D = k/␤cos was found to be 15-20 nm for nanocomposites.…”

Section: Xrd Analysissupporting

confidence: 82%

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Synthesis, characterization and DC conductivity studies of polypyrrole/copper zinc iron oxide nanocomposites

Shanthala¹,

Devi²,

Murugendrappa³

2017

Journal of Asian Ceramic Societies

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Polypyrrole and polypyrrole/copper zinc iron oxide (copper zinc ferrite) nanocomposites were synthesized by in-situ polymerization using Ammonium Persulphate as oxidising agent. The nanocomposites were synthesized by mixing polypyrrole and copper zinc iron oxide in different weight percentages. The formation of nanocomposites and changes in the structural properties were investigated by characterizing the samples using XRD, FTIR, SEM and EDX analysis. The size of the particle was analysed by XRD using Scherrer equation and found to be in 20 nm range. DC conductivity was measured in the temperature range 300 K-473 K. The DC conductivity was found to be constant for the temperature range from 300 K-433 K. But the conductivity showed an exponential increase for the temperature 433 K-473 K, and it obeys Arrhenius relation. Activation energies were evaluated from Arrhenius plots for all compositions. Results show that incorporation of additive material significantly reduces the activation energy for the DC conductivity of the composites, and the decrease in the activation energy is also dependent on the amount of the nanoparticles in the composites. As the polymers are used in the various manufacturing products, this study indicates the possibility of using such polymers in the form of composites as superior insulating material in the fields of electrical or electronic insulation and allied areas.

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Section: Xrd Analysissupporting

confidence: 82%

“…The activation energy is estimated from the slope of Arrhenius plot of ln against (1/T) [17][18][19][20][21] Activation energy (E a ) = − slope × k Slope being negative, activation energy is positive. The activation energy Plots of nanocomposites with different composition are as shown in Fig.…”

Section: Activation Energymentioning

confidence: 99%

Synthesis, characterization and DC conductivity studies of polypyrrole/copper zinc iron oxide nanocomposites

Shanthala¹,

Devi²,

Murugendrappa³

2017

Journal of Asian Ceramic Societies

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“…Ferrite materials possess high permeability, high magnetization and low losses at higher frequencies due to this ferrites have large technological applications such as LPG gas sensor, humidity sensor [1,2,3,4].…”

Section: +mentioning

confidence: 99%

Electric and Dielectric behavior of Ni-Co-Cd Ferrite

Aldar¹,

Pinjari²,

Burange³

2014

IOSRJAP

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“…Owing to this, reactive nanoparticles are widely used in different fields of applications. At nanoscale dimensions, the ionic radii of a cation decide its position in the lattice, especially in the case of doping and compounds having more than one cation [10]. Catalytic and magnetic properties of nanoparticles of spinel ferrites containing transition metal are different from their bulk counterparts, therefore, they find applications in magnetic resonance imaging, magnetic memory devices, photo-magnetic materials, and target-specific drug delivery systems [11].…”

Section: Introductionmentioning

confidence: 99%

Structural, optical and vibrational study of zinc copper ferrite nanocomposite prepared by exploding wire technique

Singh

Sahai

Katyal

et al. 2018

Materials Science-Poland

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We have synthesized zinc-copper ferrite (ZCFO) employing exploding wire technique (EWT). The X-ray diffraction (XRD) data confirm the formation of single phase spinel ZCFO, which is in good agreement with Fourier transform infrared spectroscopy (FT-IR), UV-Vis, and Raman spectroscopic analyses. It is also clearly seen in the SEM micrographs that the grains in ZCFO ferrite are very rough, which allows adsorption of gas like oxygen and therefore, the material can behave as active sensing surface. The size range of the grains in prepared sample is of 200 nm to 500 nm. The FT-IR spectrum of the nanocomposite consists of two broad bands, one at 580.4 cm−1 due to M–O stretching mode at the tetrahedral site and the other at 400.7 cm−1 due to M–O stretching mode at the octahedral site. The nanoparticles show a UV-Vis absorption band in the wavelength region of 400 nm to 700 nm. The energy band gap for the prepared nanomaterial was estimated to be 3.16 eV. Thus, the ferrite nanocomposite prepared by EWT is optically active. According to present literature, Raman spectroscopy study on zinc-copper ferrite system has not been reported till date. By suitable attributing various Raman modes, we have further confirmed the formation of ZCFO nanophase through the present novel approach.

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Study of Zn‐Cu Ferrite Nanoparticles for LPG Sensing

Cited by 41 publications

References 29 publications

Synthesis, characterization and DC conductivity studies of polypyrrole/copper zinc iron oxide nanocomposites

Synthesis, characterization and DC conductivity studies of polypyrrole/copper zinc iron oxide nanocomposites

Electric and Dielectric behavior of Ni-Co-Cd Ferrite

Structural, optical and vibrational study of zinc copper ferrite nanocomposite prepared by exploding wire technique

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