Study of DC conductivity and relative magnetic permeability of nanoparticle NiZnFe2O4/PPy composites

Saafan, S.A.; Meaz, T.M.; El-Ghazzawy, E.H.

doi:10.1016/j.jmmm.2011.01.010

Cited by 33 publications

(14 citation statements)

References 25 publications

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“…These properties are more prominent when metal oxide crystals placed in a magnetic field. [33] Magnetic susceptibility (κ) is defined as a function of magnetic field strength, H and magnetization intensity, J as shown in Equation 11.…”

Section: Magnetic Propertiesmentioning

confidence: 99%

Synthesis and characterization of magnetite nano particles with high selectivity using in-situ precipitation method

Rashid

Mansoor

Haider

et al. 2019

Separation Science and Technology

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In-situ precipitation method is widely used and reported in the literature for the synthesis of iron oxide nanoparticles based on their applications in many fields. However, the rate of reaction and rate constant for the production of Magnetite Phase of iron oxide did not study in depth. Reaction rates are required to design a scale-up of the process. In this study, Magnetite phase of iron oxide nanoparticles (Fe 3 O 4) are synthesized by the in-situ precipitation method, and the overall reaction rate is evaluated based on the concentration of Magnetite produced during the process. Further, X-ray diffraction, energy-dispersive X-ray spectroscopy and Raman spectroscopy are used to confirm the presence of a higher proportion of magnetite (Fe 3 O 4) in the final product, which is responsible for more top magnetic properties 74.615 emu. Changes in morphology of these nanoparticles at different intervals of the reaction are reported by transmission electron microscope. The results showed that spherical nanoparticles synthesized at different intervals of the reaction have a very narrow range of particle size, i.e. 9-15 nm. Detailed analysis reveals the presence of a higher share of maghemite (Fe 2 O 3) at the start of the reaction. However, maghemite eventually is converted to magnetite by the end of the reaction, thereby enhancing the magnetic strength of the nanoparticles.

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Section: Magnetic Propertiesmentioning

confidence: 99%

Synthesis and characterization of magnetite nano particles with high selectivity using in-situ precipitation method

Rashid

Mansoor

Haider

et al. 2019

Separation Science and Technology

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show abstract

“…4-b. The change in the slope can be related to a change in magnetic properties [30][31][32], to a distortion of the structure [33], to a change in the conduction mechanism or to a change in the charge carrier type (electron or hole). As the temperature T s is approximately the same for all investigated samples, it can be attributed to a distortion of the structure which occurs at T s E480 K. Since this temperature appears in the free compounds (x ¼0) it cannot be related to the substitution element (nickel) and cannot be explained by the other mechanism previously cited.…”

Section: Conductivity Analysismentioning

confidence: 99%

Structural and electrical properties of Zn1-xNixFe2O4 ferrite

Rahmouni

Benali

Cherif

et al. 2015

Physica B: Condensed Matter

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“…Major advancements are achieved in synthesis and characterization of conducting polymeric matrices with embedded magnetic nanoparticles which constitute an important class of nanostructures [8][9][10][11]. These nanostructures/nanocomposites exhibit novel physical properties owing to the nanoscale confinement of the magnetic constituents, abundance of interfaces, and extent of dispersion of fine particles within nonmagnetic polymer matrices.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characteristics of poly(3-pyrrol-1-ylpropanoic acid) (PPyAA)–Fe3O4 nanocomposite

Karaoğlu

Baykal

Deligöz

et al. 2011

Journal of Alloys and Compounds

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Study of DC conductivity and relative magnetic permeability of nanoparticle NiZnFe2O4/PPy composites

Cited by 33 publications

References 25 publications

Synthesis and characterization of magnetite nano particles with high selectivity using in-situ precipitation method

Synthesis and characterization of magnetite nano particles with high selectivity using in-situ precipitation method

Structural and electrical properties of Zn1-xNixFe2O4 ferrite

Synthesis and characteristics of poly(3-pyrrol-1-ylpropanoic acid) (PPyAA)–Fe3O4 nanocomposite

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