Nanocrystalline Zn1− Co0.5Ni0.5 Fe2O4 ferrites: Fabrication via co-precipitation route with enhanced magnetic and electrical properties

Hassan, Ali; Khan, Muhammad Azhar; Shahid, Muhammad; Asghar, M.; Shakir, Imran; Naseem, Shahzad; Riaz, Saira; Warsi, Muhammad Farooq

doi:10.1016/j.jmmm.2015.05.033

Cited by 59 publications

(16 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nowadays, the use of the ferrite nanomaterials grows and, continuing miniaturization trend in engineering, there is a need to develop synthesis methods and to do characterization of the ferrite nanomaterials. Currently, spinel nanoferrites are of great interest for several advanced technological and electrical applications, such as magnetic recording devices, storage devices high quality filters, microwave devices, electric generators, all applications are directly related to the nature of transition metals existing or introduced into the ferrite spinel lattice. Generally, the spinel ferrite MFe 2 O 4 crystallizes in the cubic face‐centered structure, with molecular formula [M 1− x Fe x ] A [M x Fe 2− x ] B O 4 , where the tetrahedral and octahedral sites are represented by A and B , respectively, and x is the degree of inversion.…”

Section: Introductionmentioning

confidence: 99%

Elaboration, Characterization, and Magnetic Properties of Ni_0.5Zn_0.5Fe₂O₄ Nanoparticles of High Purity Using Molten Salts Technique

Mouhib

Belaı̈che

Briche

2018

Physica Status Solidi (a)

View full text Add to dashboard Cite

Ferrite nanoparticles of basic composition Ni 0.5 Zn 0.5 Fe 2 O 4 are synthesized for the first time through molten salt method using Fe 1.61 O 3 , Ni 0.47 (OH) 2 , and Zn 0.98 O as non-standard Moroccan raw materials. The effect of various parameters such as annealing temperature and time on crystalline structure of Ni-Zn ferrite has been investigated. The TGA analysis shows the thermal behavior of the reagents mixture. The X-ray diffraction pattern confirmed the single phase, high crystalline and cubic structure with Fd3m space group, and average crystallite size of 29 nm. The Fourier transform infrared spectra (FT-IR) shows two fundamental absorption bands (v 1 and v 2 ) that are attributed to the stretching vibration of tetrahedral and octahedral sites, observed in spinel structure, in the wave number range of 400-600 cm À1 . Particle size are evaluated by using transmission electron microscopy and proved that they have a cubical shape. EDS result confirms the purity of the Ni-Zn nanoferrite powder. Magnetic measurements reveal a weak ferrimagnetic behavior at low temperature and superparamagnetism at high temperature.

show abstract

Section: Introductionmentioning

confidence: 99%

Elaboration, Characterization, and Magnetic Properties of Ni_0.5Zn_0.5Fe₂O₄ Nanoparticles of High Purity Using Molten Salts Technique

Mouhib

Belaı̈che

Briche

2018

Physica Status Solidi (a)

View full text Add to dashboard Cite

show abstract

“…It is well known that several chemical techniques, such as hydrothermal [8], co-precipitation [9] and sol-gel [10] synthesis have been used to prepare ultrafine ferrite powders. Among these techniques, sol-gel method offers high degree of compositional homogeneity content in a relatively short processing time at a very low temperature [11].…”

Section: +mentioning

confidence: 99%

Structural and Magnetic Properties of Cr-Co Nanoferrite Particles

Lakshmi¹,

Kumar

Thyagarajan

2016

ANP

View full text Add to dashboard Cite

Nano-crystalline Cr x CoFe 2−x O 4 (x = 0, 0.1, 0.2, 0.3, 0.4, 0.5) ferrites were synthesized by sol-gel method. The X-ray diffraction patterns of all the samples provide information about the existence of single phase spinel structure. The SEM and TEM micrographs show the uniform particle distribution and SAED pattern represents the polycrystalline nature of the resultant ferrite nano-particles. High purity of the sample is confirmed by energy dispersive X-ray analysis. The FTIR spectra show two strong absorption bands in the range of 600 -400 cm −1 , which confirm the presence of M-O stretching band in ferrites. The magnetic properties of the synthesized samples were investigated by using vibrating sample magnetometer at room temperature. According to VSM reports the main magnetic parameters like saturation magnetization (M s ), coercivity (H c ) were found to decrease with the substitution of Cr 3+ content. Possible mechanisms which are responsible for the results are scrutinized minutely in this paper.

show abstract

“…There are reports available which support that surface structure and magnetic properties are strongly related to each other [9][10][11][12]. The electrical and magnetic properties of ferrites have been reported to be strongly dependent on the purity of the starting ferrite powder, the microstructure as well as the grain boundary chemistry [1,2,9,13]. Typically, high purity, uniform composition and * Author for correspondence (aliphysics1@gmail.com) good microstructure properties that developed are essential for the high performance of the ferrites [1,[14][15][16].…”

Section: Introductionmentioning

confidence: 99%

“…Magnetic spinel ferrites are important materials owing to their excellent electrical and magnetic properties, viz. low dielectric constant, low dielectric losses, high resistivity, low coercivity and low saturation magnetization [1,2]. Their distinctive qualities such as high electrical resistivity, high permeability and negligible eddy current losses for high-frequency electromagnetic wave propagation make them suitable for many technological applications such as high-density magnetic storage, microwave and telecommunication devices, magnetic fluids, drug delivery and gas sensors.…”

Section: Introductionmentioning

confidence: 99%

“…The electrical and magnetic properties of ferrites have been reported to be strongly dependent on the purity of the starting ferrite powder, the microstructure as well as the grain boundary chemistry [1,2,9,13]. Typically, high purity, uniform composition and * Author for correspondence (aliphysics1@gmail.com) good microstructure properties that developed are essential for the high performance of the ferrites [1,[14][15][16]. Among various ferrites, nanosize cobalt ferrite is a hard magnetic material with high coercivity, high saturation magnetization and high electrical resistivity.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Cu2+ and Al3+ co-substituted cobalt ferrite: structural analysis, morphology and magnetic properties

et al. 2016

View full text Add to dashboard Cite

Cu-Al substituted Co ferrite nanopowders, Co 1−x Cu x Fe 2−x Al x O 4 (0.0 ≤ x ≤ 0.8) were synthesized by the co-precipitation method. The effect of Cu-Al substitution on the structural and magnetic properties have been investigated. X-ray diffraction (XRD) spectroscopy, Fourier transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy (FESEM) and vibrating sample magnetometer (VSM) are used for studying the effect of variation in the Cu-Al substitution and its impact on particle size, magnetic properties such as M s and H c. Cu-Al substitution occurs and produce a secondary phase, α-Fe 2 O 3. The crystallite size of the powder calcined at 800 • C was in the range of 19-26 nm. The lattice parameter decreases with increasing Cu-Al content. The nanostructural features were examined by FESEM images. Infrared absorption (IR) spectra shows two vibrational bands; at around 600 (v 1) and 400 cm −1 (v 2). They are attributed to the tetrahedral and octahedral group complexes of the spinel lattice, respectively. It was found that the physical and magnetic properties have changed with Cu-Al contents. The saturation magnetization decreases with the increase in Cu-Al substitution. The reduction of coercive force, saturation magnetization and magnetic moments are may be due to dilution of the magnetic interaction.

show abstract

Nanocrystalline Zn1− Co0.5Ni0.5 Fe2O4 ferrites: Fabrication via co-precipitation route with enhanced magnetic and electrical properties

Cited by 59 publications

References 37 publications

Elaboration, Characterization, and Magnetic Properties of Ni_0.5Zn_0.5Fe₂O₄ Nanoparticles of High Purity Using Molten Salts Technique

Elaboration, Characterization, and Magnetic Properties of Ni_0.5Zn_0.5Fe₂O₄ Nanoparticles of High Purity Using Molten Salts Technique

Structural and Magnetic Properties of Cr-Co Nanoferrite Particles

Cu2+ and Al3+ co-substituted cobalt ferrite: structural analysis, morphology and magnetic properties

Contact Info

Product

Resources

About

Nanocrystalline Zn1− Co0.5Ni0.5 Fe2O4 ferrites: Fabrication via co-precipitation route with enhanced magnetic and electrical properties

Cited by 59 publications

References 37 publications

Elaboration, Characterization, and Magnetic Properties of Ni0.5Zn0.5Fe2O4 Nanoparticles of High Purity Using Molten Salts Technique

Elaboration, Characterization, and Magnetic Properties of Ni0.5Zn0.5Fe2O4 Nanoparticles of High Purity Using Molten Salts Technique

Structural and Magnetic Properties of Cr-Co Nanoferrite Particles

Cu2+ and Al3+ co-substituted cobalt ferrite: structural analysis, morphology and magnetic properties

Contact Info

Product

Resources

About

Elaboration, Characterization, and Magnetic Properties of Ni_0.5Zn_0.5Fe₂O₄ Nanoparticles of High Purity Using Molten Salts Technique

Elaboration, Characterization, and Magnetic Properties of Ni_0.5Zn_0.5Fe₂O₄ Nanoparticles of High Purity Using Molten Salts Technique