Synthesis and characterization of nanocrystalline zinc ferrite spinel powders by homogeneous precipitation method

Sharma, Ravi; Ghose, Ranjana

doi:10.1016/j.ceramint.2015.07.191

Cited by 42 publications

(15 citation statements)

References 51 publications

(58 reference statements)

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“…Zinc ferrite in bulk form is a normal spinel, where divalent non‐magnetic Zn 2+ ions preferentially occupy tetrahedral (A) sites and all Fe 3+ ions occupy octahedral sites . However, in nanocrystalline ZnFe 2 O 4 Zn 2+ and Fe 3+ cations are distributed on both octahedral and tetrahedral sites leading to a mixed spinel structure resulting in enhanced magnetic, electric and gas sensing properties …”

Section: Resultsmentioning

confidence: 99%

“…Conventionally ZnFe 2 O 4 has a normal spinel structure with Zn 2+ cations occupying octahedral sites . However, the cation distribution in spinel ferrites and thus zinc‐ferrite, is greatly influenced by the synthesis procedure, especially when nanosized particles are obtained . Nanosized zinc‐ferrite particles have a mixed spinel structure, with the inversion parameter depending on the synthesis route .…”

Section: Introductionmentioning

confidence: 99%

“…Nanosized zinc‐ferrite particles have a mixed spinel structure, with the inversion parameter depending on the synthesis route . Particle size, morphology, structure and the inversion parameter greatly influence the resulting properties of nanoscale zinc ferrite, enhancing and broadening the potential application of this material besides magnetic devices to drug delivery, photocatalysis, antifungal activity and gas sensing …”

Section: Introductionmentioning

confidence: 99%

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Investigation of ZnFe₂O₄ spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing

Nikolić

Vasiljević

Luković

et al. 2019

Int J Applied Ceramic Tech

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Zinc ferrite nanocrystalline powder was obtained by solid state synthesis of starting zinc oxide and hematite nanopowders. Field emission scanning electron microscopy and transmission electron microscopy, X‐ray diffraction, X‐ray photoelectron spectroscopy and Raman spectroscopy confirmed the formation of nanocrystalline zinc‐ferrite powder with a mixed spinel structure with small amounts of remaining zinc oxide and hematite as impurities. Thick film paste was formed and screen printed on test interdigitated PdAg electrodes on alumina substrate. Formation of a porous nanocrystalline structure was confirmed by scanning electron microscopy and Hg porosimetry. Humidity sensing properties of zinc ferrite thick films were investigated by monitoring the change in impedance in the relative humidity interval 30%‐90% in the frequency range 42 Hz‐1 MHz at room temperature (25°C) and 50°C. At 42 Hz at both analyzed temperatures the impedance reduced ~46 times in the humidity range 30%‐90%. The dominant influence of grain boundaries was confirmed by analysis of complex impedance with an equivalent circuit.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation of ZnFe₂O₄ spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing

Nikolić

Vasiljević

Luković

et al. 2019

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

show abstract

“…The investigations of their physical and chemical properties incorporate several areas of physics, from magnetism to optics through chemistry and mechanics [11,12] competitive in the market of soft magnetic materials [13][14][15]. The field of application of ferrites may even be expanded to magnetoelectric devices when combining them with a piezoelectric materials, e.g., as nanocomposite, core/shell or laminated composite [16][17][18][19].…”

Section: Introductionmentioning

confidence: 98%

Structural and magnetic properties of Co0.7Ni0.3Fe2O4 nanoparticles synthesized by sol–gel method

et al. 2016

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In this paper, we present the structural and magnetic properties of Co 0.7 Ni 0.3 Fe 2 O 4 nanoparticles. The nanoparticles are prepared by the sol-gel method; structural analysis by X-ray diffraction shows that the nanoparticles are pure phase with the spinel structure. Transmission electron microscopy analysis reveals the local microstructure of the particles and their size range of 6-8 nm, with isometric shape. The magnetic properties obtained with magnetic properties measurement system demonstrate the soft magnetic character of the nanoparticles.

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“…4 This ceramic presents high electromagnetic performance, 1,5 great chemical stability 3,6 and good catalytic activity. 6,7 Such properties are strongly influenced by particle size, agglomeration and morphology, 8,9 which can be controlled in the synthesis process. The correlation between synthesis parameters and resulting physical properties provides insights on the activity and stability of these spinel ferrites.…”

Section: Introductionmentioning

confidence: 99%

Zinc Ferrite Nanoparticles via Coprecipitation Modified Method: Glycerol as Structure Directing and Stabilizing Agent

Lima¹,

Costa²,

Sampaio³

et al. 2018

J. Braz. Chem. Soc.

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Coprecipitation is one of the most practical methods used to synthesize ferrite nanoparticles. Fine characteristics of these materials can be improved by means of a series of modifications in the synthesis method. In this paper we present a study of influence of glycerol as structure directing and stabilizing agent in the synthesis of zinc ferrite nanoparticle, exploring its chelating capacity and oxidation. The studied materials include two series of zinc ferrite samples and its precursors obtained with or without glycerol throughout different stages during the synthesis process. The structural and morphological characteristics were evaluated by means of different techniques such as X-ray diffraction, Fourier transformed infrared spectroscopy, scanning and transmission electron microscopy and thermal analysis. The oxidation of glycerol was determined by high-performance liquid chromatograph. The obtained results demonstrate that zinc ferrite crystals synthesized in the presence of glycerol are initially bigger than those synthesized in absence of it, but according to the oxidation process they tend to decrease giving rise to intermediate phases. Interestingly, these samples grow back during more advanced stages and become structurally better organized, compared to the series of samples produced in absence of glycerol. These results indicate that glycerol is capable to modify the synthesis route of zinc ferrite nanoparticles via coprecipitation, acting directly over the size and morphology of the crystals.

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Synthesis and characterization of nanocrystalline zinc ferrite spinel powders by homogeneous precipitation method

Cited by 42 publications

References 51 publications

Investigation of ZnFe₂O₄ spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing

Investigation of ZnFe₂O₄ spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing

Structural and magnetic properties of Co0.7Ni0.3Fe2O4 nanoparticles synthesized by sol–gel method

Zinc Ferrite Nanoparticles via Coprecipitation Modified Method: Glycerol as Structure Directing and Stabilizing Agent

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Synthesis and characterization of nanocrystalline zinc ferrite spinel powders by homogeneous precipitation method

Cited by 42 publications

References 51 publications

Investigation of ZnFe2O4 spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing

Investigation of ZnFe2O4 spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing

Structural and magnetic properties of Co0.7Ni0.3Fe2O4 nanoparticles synthesized by sol–gel method

Zinc Ferrite Nanoparticles via Coprecipitation Modified Method: Glycerol as Structure Directing and Stabilizing Agent

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Investigation of ZnFe₂O₄ spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing

Investigation of ZnFe₂O₄ spinel ferrite nanocrystalline screen‐printed thick films for application in humidity sensing