Synthesis and magneto-electrical properties of MFe2O4 (Co, Zn) nanoparticles by oleylamine route

Kurtan, Ü.; Erdemi, H.; Baykal, A.; Güngüneş, H.

doi:10.1016/j.ceramint.2016.05.046

Cited by 19 publications

(13 citation statements)

References 58 publications

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“…This obtained variation in the conductivity may be due to the difference in ferrites’ cation distribution, affecting iron ions’ amount at octahedral sites. 20 The values of ac-conductivities measured by Kurtan et al 38 for CoFe 2 O 4 and ZnFe 2 O 4 prepared via the oleyl amine route (2.54 × 10 –8 and 2.56 × 10 –8 Ω –1 cm –1 , respectively) are about 100 times lower than the present obtained data, indicating the impact of the present egg-white route in improving conductivity.…”

Section: Results and Discussioncontrasting

confidence: 71%

Structural and Magnetoelectrical Properties of MFe₂O₄ (M = Co, Ni, Cu, Mg, and Zn) Ferrospinels Synthesized via an Egg-White Biotemplate

et al. 2021

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Nanocrystalline metal ferrites (MFe 2 O 4 , M = Co, Ni, Cu, Mg, and Zn) were successfully synthesized via autocombustion synthesis using egg white. X-ray diffraction (XRD) measurements revealed the crystallization of the entire ferrites either in the tetragonal structure, such as in the case of CuFe 2 O 4 , or cubic spinels such as in other studied ferrites. The Fourier transform infrared spectral study revealed the characteristic vibration bands of ferrites. Compared to other synthesis methods, the observed variation in the obtained structural parameters could be due to the different cation distribution of the prepared ferrites. In agreement with XRD measurements, the transmission electron microscopy images showed agglomerated particles with cubic morphology for all ferrites. On the other hand, CuFe 2 O 4 showed tetragonal morphology. The magnetization values were found to vary with the type of the metal ion, and CoFe 2 O 4 showed the highest one (42.8 emu/g). Generally, the lower magnetization values obtained than those reported in the literature for all studied ferrites could be attributed to the smaller particle sizes or the cation redistribution. The obtained coercivity values are observed to be higher than their related values in the literature, exhibiting the impact of the present synthesis route. Ac-conductivity as a function of temperature and frequency indicated semiconducting properties with the observed change in the conduction mechanism by increasing the temperature. The obtained low dielectric constant values could suggest using the entire ferrites in high-frequency applications such as microwave devices.

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Section: Results and Discussioncontrasting

confidence: 71%

Structural and Magnetoelectrical Properties of MFe₂O₄ (M = Co, Ni, Cu, Mg, and Zn) Ferrospinels Synthesized via an Egg-White Biotemplate

et al. 2021

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“…The FTIR spectrum of the CoFe2O4 nanoparticles without purification presents absorption bands around 1330-1650 cm -1 , 2919 cm -1 and 2854 cm -1 , which correspond respectively to the flexion modes of the -NH2 group, methyl groups and to the stretching modes of CH bonds. The presence of these bands confirms the existence of OAm at the surface of the nanoparticles [56], so from Fig. 1 on can conclude that chemical washing was not efficient.…”

Section: Synthesis Of Cofe2o4 Nanoparticlesmentioning

confidence: 85%

Synthesis of CoFe2O4 nanocubes

Medeiros

Madigou

Moriyama

et al. 2020

Nano-Structures & Nano-Objects

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“…Oleylamine (OAM) is a long-chain primary alkylamine, which has shown its capability as a solvent, surfactant, and reducing agent for synthesizing nanoparticles with desired morphology and composition [29]. Experimental results in literature reported that monodisperse, magnetic cobalt ferrite (CoFe 2 O 4 ) and zinc ferrite (ZnFe 2 O 4 ), and nickel ferrite (NiFe 2 O 4 ) could be synthesized by using OAM as a stabilizing agent and solvent [30,31]. Therefore, we utilized OAM acting as a stabilizing agent to synthesize magnetic iron oxide nanoparticles with narrow size distribution.…”

Section: Resultsmentioning

confidence: 99%

Electroactive Composites with Block Copolymer-Templated Iron Oxide Nanoparticles for Magnetic Hyperthermia Application

et al. 2019

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Cancer has been one of the leading causes of human death for centuries. Magnetic hyperthermia is a promising technique to confine and control cancers. However, particles used in magnetic hyperthermia leaking from where the cancers are located could compromise human health. Therefore, we developed electroactive iron oxide/block copolymer composites to tackle the leakage problem. Experimental results show that oleylamine-modified magnetic iron oxide (Fe3O4) particles and electroactive tetraaniline (TA) could be templated in the self-assembled microstructures of sulfonated [styrene-b-(ethylene-ran-butylene)-b-styrene] (S-SEBS) block copolymers. Various amounts of Fe3O4 particles and TA oligomer were incorporated in S-SEBS block copolymer and their electroactive behavior was confirmed by exhibiting two pairs of well-defined anodic and cathodic current peaks in cyclic voltammetry tests. The heating performance of the resultant TA/Fe3O4/polymer composites improved on increasing the added amount of Fe3O4 particles and TA oligomers. Both Fe3O4 and TA can contribute to improved heating performance, but Fe3O4 possesses a greater contribution than TA does. Hence, the main source for increasing the composites’ temperature is Neel relaxation loss from Fe3O4 magnetic particles.

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Synthesis and magneto-electrical properties of MFe2O4 (Co, Zn) nanoparticles by oleylamine route

Cited by 19 publications

References 58 publications

Structural and Magnetoelectrical Properties of MFe₂O₄ (M = Co, Ni, Cu, Mg, and Zn) Ferrospinels Synthesized via an Egg-White Biotemplate

Structural and Magnetoelectrical Properties of MFe₂O₄ (M = Co, Ni, Cu, Mg, and Zn) Ferrospinels Synthesized via an Egg-White Biotemplate

Synthesis of CoFe2O4 nanocubes

Electroactive Composites with Block Copolymer-Templated Iron Oxide Nanoparticles for Magnetic Hyperthermia Application

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Synthesis and magneto-electrical properties of MFe2O4 (Co, Zn) nanoparticles by oleylamine route

Cited by 19 publications

References 58 publications

Structural and Magnetoelectrical Properties of MFe2O4 (M = Co, Ni, Cu, Mg, and Zn) Ferrospinels Synthesized via an Egg-White Biotemplate

Structural and Magnetoelectrical Properties of MFe2O4 (M = Co, Ni, Cu, Mg, and Zn) Ferrospinels Synthesized via an Egg-White Biotemplate

Synthesis of CoFe2O4 nanocubes

Electroactive Composites with Block Copolymer-Templated Iron Oxide Nanoparticles for Magnetic Hyperthermia Application

Contact Info

Product

Resources

About

Structural and Magnetoelectrical Properties of MFe₂O₄ (M = Co, Ni, Cu, Mg, and Zn) Ferrospinels Synthesized via an Egg-White Biotemplate

Structural and Magnetoelectrical Properties of MFe₂O₄ (M = Co, Ni, Cu, Mg, and Zn) Ferrospinels Synthesized via an Egg-White Biotemplate