Superparamagnetic behaviour of zinc ferrite obtained by the microwave assisted method

Hangai, Bruno; Borsari, E.; Aguiar, E. C.; García, Filiberto González; Longo, Elson; Simões, Alexandre Zirpoli

doi:10.1007/s10854-017-6854-1

Cited by 13 publications

(4 citation statements)

References 48 publications

(43 reference statements)

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“…The effects of the escaped gases during the combustion phase could be the formation of the voids in the powdered samples. Similar findings were also seen in other studies [19,20,21]. EDAX analysis for Zn-ferrite, shown in Figure 4, indicates that the basic compositions of the samples are Zn, Fe and O. Al impurity peak appears in EDAX pattern of Zn-ferrite powder with 0.33 G/N ratio due to the sample coating.…”

Section: Morphological and Chemical Composition Analysissupporting

confidence: 89%

Role of Glycine-to-Nitrate Ratio in Physical and Magnetic Properties of Zn-Ferrite Powder

Sami

Sadeq

2022

eijs

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We report the influence of different glycine-to-nitrate ratios on the physical and magnetic properties for synthesized zinc-ferrite by microwave-assisted combustion route. Phase impurity and surface morphology investigated with XRD analysis and field emission- scanning electron microscopy, indicated that spinel structure were formed.Average particles size increased with the decrease of glycine to nitrate ratio. Magnetic measurement results indicated that high values of saturation magnetization were produced with low glycine/nitrate ratio. Optical properties of the investigated ferrites exhibited photo absorption from UV to visible region with energy gap values that decreased with the decrease of glycine-to-nitrate ratio. Mainly two broad metal-oxygen bands for zinc-ferrite were seen in FT-IR spectra.

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Section: Morphological and Chemical Composition Analysissupporting

confidence: 89%

Role of Glycine-to-Nitrate Ratio in Physical and Magnetic Properties of Zn-Ferrite Powder

Sami

Sadeq

2022

eijs

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“…Therefore, the magnetic characteristics of the ZF nanoparticle and ZF/RE are controlled by the particle size. Table 3 shows a comparison between the present works and numerous of other works [54][55][56][57][58][59][60][61][62] related to the effect of the method of preparation, and the doping or mixing, or replacing of ZF on the particle size, and the magnetic properties of ZF. From table 3 we can say that the value of M S and H C of ZF depends on both the method of preparation and the average particle size.…”

Section: Magnetic Properties 331 the Magnetic Hysteresis Loopsmentioning

confidence: 96%

Impact of rare earth oxide on ZnFe₂O₄: structural, magnetic properties, and hyperthermia efficiency

Roumaih,

Ali,

Hussein

2023

Phys. Scr.

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ZnFe2O4/Yb2O3 (ZF/Yb) and ZnFe2O4/Sm2O3 (ZF/Sm) were prepared by the sol-gel method. XRD pattern of sample ZF show a clear cubic spinel structure (space group fd-3m). The XRD confirmed the presence of ZF along with Yb in the ZF/Yb. In the case of ZF/Sm, the raw materials interact with each other and produce ZF alongside ZnO and SmFeO3. The SEM and TEM indicate that all compounds were at the nanoscale. The particle size for ZF is 19.6 nm, and those for ZF/Yb and ZF/SM are 29.5 nm and 30.7 nm, respectively. A vibrating sample magnetometer (VSM) confirmed the ferrimagnetic ordering of these samples. A distinct, potent, sweeping, and asymmetric line was observed in the X-band electron spin resonance (ESR) spectra of all samples. The VSM and ESR show that the internal interactions between ZF and rare earth oxides, as well as the particle size, play a role in the magnetic properties. The specific absorption rate (SAR) parameters showed that the temperature increased linearly with time, and in only 25 seconds, the temperature reached 45 °C for the ZF sample. 

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“…This way, it explores how the parameters of experimental synthesis (e.g., temperature, pressure, solvent, nature of the precursors, reaction time, and so on) affect the formation of crystalline particles leading to highly adjustable properties of a given target material [54][55][56][57][58]. In relation to the materials prepared by this strategy, we highlight the superiority in applications such as superionic conductors [28,59,60], chemical and gas sensors [29,[61][62][63][64][65], electronically conductive solids [30,[66][67][68], complex ceramic oxide and fluorides [31,32,[69][70][71][72][73][74], magnetic materials [33,[75][76][77][78], optoelectronic devices [34,[79][80][81][82], and so on. Furthermore, it is known that the kinetics of hydro(solvo)thermal reactions undergo significant changes when associating technologies such as electrochemistry, microwave, sonochemistry, and others [70,81,[83][84][85][86][87]<...…”

Section: Introductionmentioning

confidence: 99%

An overview into advantages and applications of conventional and unconventional hydro(solvo)thermal approaches for novel advanced materials design

Conti

Dey

Pottker

et al. 2022

Preprint

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The hydro(solvo)thermal approaches due to their simplicity and relatively low cost have attracted great attention to novel advanced materials processing with controlled particle sizes and well-defined morphologies, including the desirable obtaining of diverse metastable phases. Furthermore, in this case, such advanced materials obtained by this strategy generally have a high crystallinity structure as the main characteristic, which is interesting for a wide range of technological applications of high performance. This critical review presents the recent progress and challenges in conventional and unconventional hydro(solvo)thermal synthesis of novel advanced materials with desirable functionality and outstanding physicochemical properties designed using such methods. Finally, in this perspective, we believe that this detailed knowledge of the effect of processing parameters and as they will affect the prepared materials structure-composition-morphology is a key step to providing new chemical insights for the rational advanced materials design.

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Superparamagnetic behaviour of zinc ferrite obtained by the microwave assisted method

Cited by 13 publications

References 48 publications

Role of Glycine-to-Nitrate Ratio in Physical and Magnetic Properties of Zn-Ferrite Powder

Role of Glycine-to-Nitrate Ratio in Physical and Magnetic Properties of Zn-Ferrite Powder

Impact of rare earth oxide on ZnFe₂O₄: structural, magnetic properties, and hyperthermia efficiency

An overview into advantages and applications of conventional and unconventional hydro(solvo)thermal approaches for novel advanced materials design

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Superparamagnetic behaviour of zinc ferrite obtained by the microwave assisted method

Cited by 13 publications

References 48 publications

Role of Glycine-to-Nitrate Ratio in Physical and Magnetic Properties of Zn-Ferrite Powder

Role of Glycine-to-Nitrate Ratio in Physical and Magnetic Properties of Zn-Ferrite Powder

Impact of rare earth oxide on ZnFe2O4: structural, magnetic properties, and hyperthermia efficiency

An overview into advantages and applications of conventional and unconventional hydro(solvo)thermal approaches for novel advanced materials design

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Impact of rare earth oxide on ZnFe₂O₄: structural, magnetic properties, and hyperthermia efficiency