Size and crystallinity-dependent magnetic properties of copper ferrite nano-particles

Deraz, N.M.

doi:10.1016/j.jallcom.2010.04.096

Cited by 93 publications

(44 citation statements)

References 56 publications

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“…In the present scheme shown in Figure 1, preheating to 80°C helps in the formation of the sol 15 and viscous liquid formed during rapid boiling. We have found similar reports 16,17 on the auto-combustion synthesis of cubic CuFe 2 O 4 powders with the use of glycine and with the reaction temperature of 250300°C. It is also impressive that though the present method has an advantage of good chemical homogeneity, high product purity and crystallinity with fine particle size, and simple preparation process with low processing time.…”

Section: ¹1supporting

confidence: 88%

Low-temperature Synthesis of Cubic Phase CuFe₂O₄ Powder

Kongkaew

Sakurai

2017

Chem. Lett.

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The present paper reports extremely efficient and versatile route for the synthesis of cubic copper ferrite (CuFe 2 O 4 ) powder, which is promising for many interesting applications such as Li-ion storage, gas sensors, catalysts, and magnetic devices. The technique uses ethylene glycol (EG) as a solvent of Cu(NO 3 ) 2 and Fe(NO 3 ) 3 . It has been found that crystalline CuFe 2 O 4 powder is obtained by rapid boiling of the solution and spontaneous combustion. This time a hotplate (300°C) was used, and the time required for obtaining 100 mg of the final product from 50 mL solution was only 15 min. The obtained CuFe 2 O 4 powder has a cubic structure, while the tetragonal phase is more likely to be obtained in the ordinary process. The size of the crystal is rather small, mainly because of the low-temperature process. The technique is promising, because it is rapid and uses only one simple pass. For comparison, much slower drying (overnight at 100°C) of the same solution has been also studied. It has been found that tetragonal phase CuFe 2 O 4 is formed by subsequent heating the dried materials up to 1000°C.

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Section: ¹1supporting

confidence: 88%

Low-temperature Synthesis of Cubic Phase CuFe₂O₄ Powder

Kongkaew

Sakurai

2017

Chem. Lett.

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“…Beside these methods, there are several attempts using auto-ignited combustion reactions [26,27]. Among them, a glycine-nitrate process (GNP) is applicable, a very simple, low-cost, fast method for preparing various nano-crystalline ferrites [28,29]. One goal of modern ferrite research and development has been to identify simpler processing schemes that do not rely upon high temperature treatments for inducing solid-state reactions [30].…”

Section: Introductionmentioning

confidence: 99%

Novel preparation and properties of magnesioferrite nanoparticles

Deraz

Alarifi

2012

Journal of Analytical and Applied Pyrolysis

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“…For the CuFe-500 and CuFe-600 samples, the higher saturation magnetization was observed for the later one. One of the reasons is that the larger particle size lead to higher saturation magnetization, which is attributed to surface effects that are the result of finite-size scaling of nanocrystallites [11]. The other is that the saturation moment is increased with increasing the inversion degree due to an increased in tetragonal CuFe 2 O 4 phase [9], resulting in the increase of saturation magnetization.…”

Section: Resultsmentioning

confidence: 99%

Magnetism and phase transformation of Cu-Fe composite oxides prepared by the sol-gel route

Xiao¹,

Jin²,

Wang³

et al. 2013

Isiame 2012

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The Cu-Fe composite oxides were prepared by an epoxide assisted sol-gel route. The structural and magnetic properties of Cu-Fe composite oxides calcinated at different temperatures were determined by X-ray diffraction (XRD), Mössbauer spectroscopy measurements, and magnetic measurements. These results indicated that CuFe 2 O 4 was only formed as calcination temperature increased to 500• C, and a crystalline phase transformation from c-CuFe 2 O 4 to t-CuFe 2 O 4 occurred in elevating calcination temperature above it. All Cu-Fe oxides had ferromagnetic nature, and the significant superparamagnetic behavior was observed in the results of magnetic and Mössbauer spectroscopy measurements.

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Size and crystallinity-dependent magnetic properties of copper ferrite nano-particles

Cited by 93 publications

References 56 publications

Low-temperature Synthesis of Cubic Phase CuFe₂O₄ Powder

Low-temperature Synthesis of Cubic Phase CuFe₂O₄ Powder

Novel preparation and properties of magnesioferrite nanoparticles

Magnetism and phase transformation of Cu-Fe composite oxides prepared by the sol-gel route

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Size and crystallinity-dependent magnetic properties of copper ferrite nano-particles

Cited by 93 publications

References 56 publications

Low-temperature Synthesis of Cubic Phase CuFe2O4 Powder

Low-temperature Synthesis of Cubic Phase CuFe2O4 Powder

Novel preparation and properties of magnesioferrite nanoparticles

Magnetism and phase transformation of Cu-Fe composite oxides prepared by the sol-gel route

Contact Info

Product

Resources

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Low-temperature Synthesis of Cubic Phase CuFe₂O₄ Powder

Low-temperature Synthesis of Cubic Phase CuFe₂O₄ Powder