Novel preparation and properties of magnesioferrite nanoparticles

Deraz, N.M.; Alarifi, Abdullah

doi:10.1016/j.jaap.2012.04.006

Cited by 42 publications

(17 citation statements)

References 58 publications

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“…In fact, the mean tetrahedral ionic radius shows slow increase than that of the ionic radius of octahedral site with increasing the content of zinc. Similar findings on the Co-Zn system have been reported by other investigators [22]. The hopping lengths in the tetrahedral site (L A ) and in octahedral site (L B ) which is nothing but the distance between the magnetic ions have been calculated and the values have also been given in Table 1.…”

Section: +supporting

confidence: 81%

Influence of Zn substitution on the structural and magnetic properties of Co1-xZnxFe2O4 nano-ferrites

Nasrin¹,

Hoque²,

Hossen

2014

IOSRJAP

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Section: +supporting

confidence: 81%

Influence of Zn substitution on the structural and magnetic properties of Co1-xZnxFe2O4 nano-ferrites

Nasrin¹,

Hoque²,

Hossen

2014

IOSRJAP

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“…The mean ionic radius of octahedral site B (rB) is decrease slowly than the tetrahedral site A (rA). A similar type of observations is noted by other -Zn system [25]. (1629 cm-1),(ii) symmetric stretching (1388 cm 1),(iii) totally symmetric stretching (1052 cm out of plane bending (870 cm-1),(v) anti in-plane bending (729 cm-1),(vi) symmetric in bending (664 cm-1).…”

Section: B Characterisationsupporting

confidence: 82%

Microstructural and Magnetic Properties of Cobalt Ferrite Nanoparticles Synthesized by Sol-Gel Technique

Chitra¹,

Raguram²,

Rajni³

2018

IJTSRD

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Cobalt ferrite (CoFe2O4), an inverse spinal ferrite has high permeability, good saturation 1magnetization and no preferred direction of magnetization, high Curie temperature, and high electromagnetic performance. In the present work 0.2M cobalt nitrate 0.3M ferric nitrate and 0.4 M citric acid is used to synthesis cobalt ferrite nanoparticle by sol technique. As the magnetic property depends on the grain size of the synthesized nanoparticle, metal nitrate to citric acid ratio is varied from 0.8, 0.6 and 0.4 and the structural, functional morphological and magnetic characteristics are analyzed. The structural analysis shows the decrease in the average crystallite from 37 to 27nm when CA/MN ratio decreases from 0.8 to 0.4. The strain is directly proportion dislocation density and it reflects the growth of the average grain size, and in the present study, it reflects the same. The calculated lattice parameter is found to be close to 8.373 Å and the volume of the cell is found to be 5.63x10-28 m is close to the standard value for the cobalt ferrite nanoparticles. From the EDS spectrum, the presence of Co, Fe, and O in the synthesized nanoparticles are noted. Functional groups analysis by FTIR shows the presence of organic sources. Surface morphology by Sc electron microscope shows the distribution of spherical sized nanoparticles agglomerated in different sizes and the grain size calculated by image J software are close to the calculated value by Scherrer formula from XRD.Cobalt ferrite (CoFe2O4), an inverse spinal ferrite has high permeability, good saturation 1magnetization and no preferred direction of magnetization, high Curie temperature, and high electromagnetic performance. In the present work 0.2M cobalt nitrate M ferric nitrate and 0.4 M citric acid is used to synthesis cobalt ferrite nanoparticle by sol-gel technique. As the magnetic property depends on the grain size of the synthesized nanoparticle, metal nitrate to citric acid ratio is varied from 0.8, 0.6 and 0.4 and the structural, functional morphological and magnetic characteristics are analyzed. The structural analysis shows the decrease in the average crystallite from 37 to 27nm when CA/MN ratio decreases from 0.8 to 0.4. The strain is directly proportional to dislocation density and it reflects the growth of the average grain size, and in the present study, it reflects the same. The calculated lattice parameter is found to and the volume of the cell is found to the standard value for the cobalt ferrite nanoparticles. From the EDS spectrum, the presence of Co, Fe, and O in the synthesized nanoparticles are noted. Functional groups analysis by FTIR shows the presence of organic sources. Surface morphology by Scanning electron microscope shows the distribution of spherical sized nanoparticles agglomerated in different sizes and the grain size calculated by image J software are close to the calculated value by Scherrer RD, FTIR, SEM, VSM I.

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“…Among the various ferrite compounds, magnesium ferrite (MgFe 2 O 4 ) nanoparticles is one of the most important functional soft magnetic materials. It has excellent chemical stability with inverse spinel structured, which have found a number of modern technological applications in microwave devices, catalysis, adsorption, gas and humidity sensor, ferrofluid technology, fuel cells, magnetic core of coils and also used in an inorganic pigment [11][12][13]. Aono et al [14] found that MgFe 2 O 4 has the highest heating ability compare to other commercial ferrite powders of MFe 2 O 4 (M = Mg, Mn, Fe, Co, Ni, Cu and Sr) in alternating magnetic field which is one of the interesting applications in hyperthermia therapy.…”

Section: Introductionmentioning

confidence: 99%

Investigations of superparamagnetism in magnesium ferrite nano-sphere synthesized by ultrasonic spray pyrolysis technique for hyperthermia application

Das

Sakamoto

Aono

et al. 2015

Journal of Magnetism and Magnetic Materials

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Novel preparation and properties of magnesioferrite nanoparticles

Cited by 42 publications

References 58 publications

Influence of Zn substitution on the structural and magnetic properties of Co1-xZnxFe2O4 nano-ferrites

Influence of Zn substitution on the structural and magnetic properties of Co1-xZnxFe2O4 nano-ferrites

Microstructural and Magnetic Properties of Cobalt Ferrite Nanoparticles Synthesized by Sol-Gel Technique

Investigations of superparamagnetism in magnesium ferrite nano-sphere synthesized by ultrasonic spray pyrolysis technique for hyperthermia application

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