A study of nanosized Ni substituted Co–Zn ferrite prepared by coprecipitation

Suwalka, Omprakash; Sharma, Ram Kripal; Sebastian, Varkey; Lakshmi, N.; Venugopalan, K.

doi:10.1016/j.jmmm.2006.12.026

Cited by 34 publications

(13 citation statements)

References 20 publications

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“…We can conclude that the particle size may be controlled by either varying the annealing temperature of the sample or the addition Na(ac.ac) content. The crystallite size estimated from Scherrer's equation formula agrees well with that obtained from the corresponding TEM micrograph [18] [19].…”

Section: Transmission Electron Microscopy (Tem)supporting

confidence: 71%

Spectral Properties of [(Ni0.45Co0.2Zn0.35F2O4)1–x(Sodium Acetylacetonate)x] Nanocomposite

Hemeda¹,

Tawfik²,

Refaey³

et al. 2017

OJAppS

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The pure spinel phase of Ni 0.45 Co 0.2 Zn 0.35 F 2 O 4 was prepared by coprecipitation method and ceramic method. The nanocomposite [(NCZF) 1−x (Na(ac.ac)) x ] (x = 0%, 20%, 40%, 60%, 80%, 100%) was prepared by mixing two phases, Ni 0.45 Co 0.2 Zn 0.35 F 2 O 4 with coprecipitation method [NCZF] and sodium acetylacetonate [Na(ac.ac)]. The TEM photographs of the as prepared ferrite samples by coprecipitation method at different ratios of Na(ac.ac) show that the crystalline cubic nanoparticles diameter were ranged from 26 -36 nm and the particle size of Na(ac.ac) is greater than NCZF. The same behavior has also confirmed by XRD patterns indicating polycrystalline nature of prepared sample. The comparison between the SEM micrographs for NCZF nanoparticles prepared by a) ceramic method and b) co-precipitation method was done to show the effect of preparation condition on the microstructure. IR analysis confirms the composites formation.

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Section: Transmission Electron Microscopy (Tem)supporting

confidence: 71%

Spectral Properties of [(Ni0.45Co0.2Zn0.35F2O4)1–x(Sodium Acetylacetonate)x] Nanocomposite

Hemeda¹,

Tawfik²,

Refaey³

et al. 2017

OJAppS

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“…The average crystallite size D of the particles, calculated from the full- Table 1 Structural parameters of Ni x Co 0.5−x Zn 0.5 Fe 2 O 4 , for x = 0.0 to 0.5 obtained from X-ray diffractograms width half-maximum of the most intense peak (311) using Scherrer's formula, D = 0.9λ/(βCosθ),where λ is the wavelength of X-ray, and β is the half maximum line width after correcting for instrumental broadening, does not show much variation with Ni content within limits of error. The validity of the Scherrer method has been independently verified by comparing the value obtained from transmission electron microscopic (TEM) measurements for x = 0.25 synthesized as a part of the present series which has nearly the same size and is reported elsewhere [5].…”

Section: Structural Characterizationsupporting

confidence: 55%

“…Ni x Co 0.5−x Zn 0.5 Fe 2 O 4 , (0 ≤ x ≤ 0.5) nanoparticles have been prepared by chemical co precipitation method by using analytical grade Fe(NO 3 ) 3 .9H 2 O, CoCl 2 .6H 2 O, anhydrous ZnCl 2 and NiCl 2 .6H 2 O and NH 4 OH (25%) [5]. Nanosized samples were obtained by annealing at a low temperature of 573 K for 24 h. Structural characterization was done by X-ray diffraction (XRD) using Rigaku MiniFlex X-ray diffractometer (30 kV, 15 mA, Ni filter) with Cu Kα-radiation.…”

Section: Methodsmentioning

confidence: 99%

Low temperature Mössbauer and DC magnetization studies in nano-sized Ni substituted Co–Zn ferrites

et al. 2011

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Studies in the series of nano ferrites pertaining to the stoichiometry Ni x Co 0.5−x Zn 0.5 Fe 2 O 4 , (0≤ x ≤0.5) show that contrary to the trend in bulk Co-Zn and Ni-Zn ferrites, the observed saturation magnetization of Ni-Zn ferrite (x = 0.5) is larger than Co-Zn ferrite (x = 0) and are due to finite size effects. This is evident from calculations which show that the magnetic particle sizes are 1.6 nm for Co-Zn ferrite and 2.4 nm for Ni-Zn whereas their average crystallite sizes are 5 to 3 nm respectively. Low temperature Mössbauer spectroscopic studies show that this can be attributed to an increase in an ordered core with the increase in Ni content which is reflected as a corresponding increase in the saturation magnetization.

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“…solution. The precipitate was then filtered, dried at 110 • C and sintered from 600 to 1000 • C for 4 h at the rate of 10 • C/min [8].…”

Section: Methodsmentioning

confidence: 99%

Synthesis, characterization and effect of sintering temperature on magnetic properties of MgNi ferrite prepared by co-precipitation method

Hankare

Jadhav

Sankpal

et al. 2009

Journal of Alloys and Compounds

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A study of nanosized Ni substituted Co–Zn ferrite prepared by coprecipitation

Cited by 34 publications

References 20 publications

Spectral Properties of [(Ni<sub>0.45</sub>Co<sub>0.2</sub>Zn<sub>0.35</sub>F<sub>2</sub>O<sub>4</sub>)<sub>1–x</sub>(Sodium Acetylacetonate)<sub>x</sub>] Nanocomposite

Spectral Properties of [(Ni<sub>0.45</sub>Co<sub>0.2</sub>Zn<sub>0.35</sub>F<sub>2</sub>O<sub>4</sub>)<sub>1–x</sub>(Sodium Acetylacetonate)<sub>x</sub>] Nanocomposite

Low temperature Mössbauer and DC magnetization studies in nano-sized Ni substituted Co–Zn ferrites

Synthesis, characterization and effect of sintering temperature on magnetic properties of MgNi ferrite prepared by co-precipitation method

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A study of nanosized Ni substituted Co–Zn ferrite prepared by coprecipitation

Cited by 34 publications

References 20 publications

Spectral Properties of [(Ni&lt;sub&gt;0.45&lt;/sub&gt;Co&lt;sub&gt;0.2&lt;/sub&gt;Zn&lt;sub&gt;0.35&lt;/sub&gt;F&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt;)&lt;sub&gt;1–x&lt;/sub&gt;(Sodium Acetylacetonate)&lt;sub&gt;x&lt;/sub&gt;] Nanocomposite

Spectral Properties of [(Ni&lt;sub&gt;0.45&lt;/sub&gt;Co&lt;sub&gt;0.2&lt;/sub&gt;Zn&lt;sub&gt;0.35&lt;/sub&gt;F&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt;)&lt;sub&gt;1–x&lt;/sub&gt;(Sodium Acetylacetonate)&lt;sub&gt;x&lt;/sub&gt;] Nanocomposite

Low temperature Mössbauer and DC magnetization studies in nano-sized Ni substituted Co–Zn ferrites

Synthesis, characterization and effect of sintering temperature on magnetic properties of MgNi ferrite prepared by co-precipitation method

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Spectral Properties of [(Ni<sub>0.45</sub>Co<sub>0.2</sub>Zn<sub>0.35</sub>F<sub>2</sub>O<sub>4</sub>)<sub>1–x</sub>(Sodium Acetylacetonate)<sub>x</sub>] Nanocomposite

Spectral Properties of [(Ni<sub>0.45</sub>Co<sub>0.2</sub>Zn<sub>0.35</sub>F<sub>2</sub>O<sub>4</sub>)<sub>1–x</sub>(Sodium Acetylacetonate)<sub>x</sub>] Nanocomposite