Optimization of catalytic, surface and magnetic properties of nanocrystalline manganese ferrite

Deraz, N.M.; Shaban, Seham A.

doi:10.1016/j.jaap.2009.05.005

Cited by 47 publications

(29 citation statements)

References 48 publications

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“…Special attention is paid to various applications of combustion synthesized nanosized products [22,23]. We discuss a facile approach to control the size and the magnetic properties of different ferrite nanoparticles by combustion route [24][25][26]. Our experimental findings unambiguously confirm that the change in the fuel content during the combustion process has a significant influence on the surface, morphological, magnetic properties dependent particle size.…”

Section: Introductionsupporting

confidence: 54%

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Glycine-assisted fabrication of nanocrystalline cobalt ferrite system

Deraz

2010

Journal of Analytical and Applied Pyrolysis

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Section: Introductionsupporting

confidence: 54%

“…The induced decrease in the density due to the presence of glycine as fuel or a mixture of this fuel and ammonium nitrate could be ascribed to the reduction of oxygen vacancies which play a predominant role in accelerating densification i.e. the decrease in oxygen ion diffusion would retard the densification [24][25][26].…”

Section: Discussionmentioning

confidence: 99%

Glycine-assisted fabrication of nanocrystalline cobalt ferrite system

Deraz

2010

Journal of Analytical and Applied Pyrolysis

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“…For a long time, great attention of many researchers has been paid to the investigations of manganese ferrites (Fe 3 O 4 − Mn 3 O 4 system) because of their wide application in industry. They are widely used in microwave ovens and magnetic storage devices, as well as highly active catalysts in producing hydrogen via methane dehydrogenation into ethylene or acetylene, adsorbents [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Contact Non-equilibrium Plasma on Structural and Magnetic Properties of Mn Х Fe3 − X О4 Spinels

Frolovа

Derhachov

2017

Nanoscale Res Lett

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Nano-sized manganese ferrites Mn х Fe 3 − х О 4 (х = 0-1.3) were prepared using contact non-equilibrium plasma (CNP) in two different pH (11.5 and 12.5). The influence of synthesis conditions (e.g., cation ratio and initial pH) on phase composition, crystallite size, and magnetic properties were investigated employing X-ray diffraction (XRD), differential thermal analysis (DTA), Fourier transform infrared (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and magnetic measurement techniques. The formation of monodispersed faceted ferrite particles at х = 0-0.8 was shown. The FTIR spectra revealed reflection in region 1200-1700 cm −1 caused by the presence of water adsorbed on the surface of Fe 3 − x Mn x O 4 micro-granules or embedded into their crystal lattice. The most sensitivity of reflection spectra to the composition changes takes place within a 400-1200 cm ). The XRD results showed that the nanocrystalline Mn х Fe 3 − х О 4 (0 < x < 1.0) had cubic spinel crystal structure with average crystallite size 48-49 A. The decrease of crystalline size with the x increase was also observed.

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“…The first systematic study in the field of preparing of spinel ferrites was reported by Hilpert in 1909(Hilpert 1909. Recently, various fabrication methods have been reported, including the sol-gel (Thankachan et al 2013), co-precipitation (Ferk et al 2014), solid-state reaction (Kotnala et al 2008), ball milling (Chen et al 2012), hydrothermal method (Hemeda et al 2014;Koseoglu 2013), and combustion technique (Deraz and Shaban 2009) etc. Among these, co-precipitation method is one of the advance methods for preparation of metal ferrite NPs because of its simplicity, low cost, and bulk production of NPs.…”

Section: Introductionmentioning

confidence: 99%

Effects on structural, optical, and magnetic properties of pure and Sr-substituted MgFe2O4 nanoparticles at different calcination temperatures

Loganathan

Kumar

2015

Appl Nanosci

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In the present work, pure and Sr 2? ions substituted Mg ferrite nanoparticles (NPs) had been prepared by co-precipitation method and their structural, optical, and magnetic properties at different calcination temperatures were studied. On this purpose, thermo gravimetric and differential thermal analysis (TG-DTA), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy, UV-Visible diffused reflectance spectroscopy, impedance spectroscopy, and vibrating sample magnetometer were carried out. The exoand endothermic processes of synthesized precursors were investigated by TG-DTA measurements. The structural properties of the obtained products were examined by XRD analysis and show that the synthesized NPs are in the cubic spinel structure. The existence of two bands around 578-583 and 430-436 cm -1 in FT-IR spectrum also confirmed the formation of spinel-structured ferrite NPs. The lattice constants and particle size are estimated using XRD data and found to be strongly dependent on calcination temperatures. The optical, electrical, and magnetic properties of ferrite compositions also investigated and found to be strongly dependant on calcination temperatures.

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Optimization of catalytic, surface and magnetic properties of nanocrystalline manganese ferrite

Cited by 47 publications

References 48 publications

Glycine-assisted fabrication of nanocrystalline cobalt ferrite system

Glycine-assisted fabrication of nanocrystalline cobalt ferrite system

The Effect of Contact Non-equilibrium Plasma on Structural and Magnetic Properties of Mn Х Fe3 − X О4 Spinels

Effects on structural, optical, and magnetic properties of pure and Sr-substituted MgFe2O4 nanoparticles at different calcination temperatures

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