The Temperature Effect on Magnetic Properties of NiFe2O4 Nanoparticles

Asiri, Sarah Mousa; Sertkol, M.; Güngüneş, H.; Amir, Muhammad; Manikandan, A.; Ercan, I.; Baykal, A.

doi:10.1007/s10904-018-0813-z

Cited by 64 publications

(18 citation statements)

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“…Recently, semiconductor magnetic nanomaterials have received much awareness than that of their same bulk materials, due to their size and surface effects, which exhibit unique properties such as photoluminescence, magnetooptical, electrochemical, and photocatalytic activity [1][2][3][4][5][6][7][8][9][10][11][12][13]. ese unique properties of nanomaterials in turn help to solve a lot of urgent problems related to exhaustion of fossil fuels and environment pollution.…”

Section: Introductionmentioning

confidence: 99%

A Novel Approach for Fabricating LaMnO₃ Thin Films Using Combined Microwave Combustion and Pulsed Electron Deposition Techniques

Tran

Tang

Pham

et al. 2019

Journal of Chemistry

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LaMnO3 (LMO) nanopowder was synthesized by the microwave combustion method using glycine and nitrate salts of La and Mn as precursors. The as-prepared LMO powder was pressed at high pressure and annealed at 1000°C for 8 hours to make a target for thin film deposition. The structural and elemental analysis was obtained by X-ray diffraction (XRD) and energy dispersive X-ray spectroscopy (EDS). Thin films of LMO were fabricated using pulsed electron deposition (PED) at room temperature. The effects of discharge voltage and oxygen/argon flux ratio on the produced thin films were studied. The study shows that stoichiometry and structure of the target was preserved well in the thin films prepared with a discharge voltage from 14 to 15 kV, while the oxygen/nitrogen flux ratio did not show a clear effect on the quality of thin films.

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Section: Introductionmentioning

confidence: 99%

A Novel Approach for Fabricating LaMnO₃ Thin Films Using Combined Microwave Combustion and Pulsed Electron Deposition Techniques

Tran

Tang

Pham

et al. 2019

Journal of Chemistry

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“…In comparison, the typical M s values of the nickel ferrite ceramics obtained from single-step sintering were lower than the typical M s values of the ceramics obtained from two-step sintering (Table 2). This was due to the randomly distributed magnetic moments [34] in the ceramics formed by single-step sintering, which also had higher K constants (2037.09-3501.23 emu/g/Oe) than the ceramics formed by two-step sintering (1302.19-1604.17 emu/g/Oe).…”

Section: Characteristics and Properties Of Nickel Ferrite Ceramics Fabricated By Different Sintering Methodsmentioning

confidence: 98%

Nickel ferrite ceramics: combustion synthesis, sintering, characterization, and magnetic and electrical properties

Vepulanont

Sa-nguanprang

Buapoon

et al. 2021

Journal of Asian Ceramic Societies

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Nickel ferrite powders were prepared by combustion synthesis of Fe, Fe 2 O 3 and NiO using NaClO 4 as fuel. Nickel ferrite ceramics were fabricated by single-step and two-step sintering under various conditions. The effects of each sintering process on the densification, microstructure and properties of the ceramics were investigated. X-ray diffraction analysis of asprepared powders and as-fabricated ceramics confirmed a single-phase NiFe 2 O 4 with a cubic spinel crystal structure. Single-step sintering produced ceramics with a wider density range (3.63-3.97 g/cm 3 ) than two-step sintering (3.74-3.84 g/cm 3 ) and a wider grain size range (1.10-2.31 µm compared to 1.30-1.37 µm). Two-step sintering produced ceramics with greater microhardness (135.00-172.60 HV) than single-step sintering (65.33-153.00 HV). In both methods, higher sintering temperatures produced ceramics with greater saturation magnetization (M s ). The highest M s values were 62.84 emu/g from single-step sintering at 1200°C and 70.00 emu/g from two-step sintering at T 2 = 1150°C: H c was, respectively, 31.18 and 22.00 Oe. The ceramic sintered by the two-step method at T 2 of 1150°C presented superparamagnetic-like behavior of multi-domain magnetic materials, with high µ i and very low H c . The higher electrical resistivity (R), dielectric constant (ε r ) and quality factor of this ceramic support highfrequency data storage applications.

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“…It was found that with increasing the initial pH of the synthesis solution also increases the crystallite size while the cell parameter remains nearly constant [28]. The synthesis method we used proved to allow a better organization of cations in organometallic complexes, as a result of that high purity nanocrystalline materials are expected to be produced, even when the precursors are thermally treated at low temperatures [44] in comparison to other synthetic approaches that use higher temperatures to obtain NiFe2O4 [10,29,30,51]. The high degree of chelation of the metallic ions in the solution is thought to be responsible for the good homogeneity of metallic constituents in the precursors, which leads to the fore mentioned result [50].…”

Section: X-ray Diffractionmentioning

confidence: 98%

“…Besides, nickel ferrites have a band gap in the visible light region [26] due to the electronic excitation of the O-2p level (valence band) to the Fe-3d level (conduction band) [27], which is an interesting property for application in photocatalysis. Nickel ferrites may crystallize in an inversed spinel structure [28], however, the literature also reports several examples where Ni cations occupy both tetrahedral and octahedral sites [8,10,[29][30][31], leading to a partial inverse spinel.…”

Section: Introductionmentioning

confidence: 99%

“…Several synthesis methodologies have already been used to produce ferrites including co-precipitation [14,32], proteic sol-gel [10], hydrothermal [33][34][35], solvothermal [36][37][38], conventional sol-gel [29], combustion [39], solid state reaction [40], solution blow spinning [16], and complexation [41]. The sol-gel process is one of the most accepted methods for producing ferrites where chelates are formed through a complexation reaction between multivalent ions and citric acid, a multidentate ligand [30,42]. However, the possibility of using transition metals with different oxidation states to produce a wide variety of ceramic materials requires a versatile complexing agent such as ethylenediamine tetra-acetic acid (EDTA).…”

Section: Introductionmentioning

confidence: 99%

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Silva¹,

Raimundo²,

Ferreira³

et al. 2021

Preprint

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In this paper we studied the production of single-phase NiFe2O4 powders synthesized by the complexation method combining EDTA-citrate. The structural, optical, magnetic, and electrochemical properties of were studied as a function of the synthesis pH. Powders obtained with pH 9 showed larger crystallite sizes (73 nm) in comparison to those produced with pH 3 (21 nm). The band gap energy was found to be inversely proportional to the crystal size (1.85 and 2.0 eV for powders with crystallites of 73 nm and 21 nm, respectively). The synthesized materials presented an inverse spinel crystalline structure. The samples obtained at higher pH conditions were found to be fully magnetic saturated with a saturation magnetization of 50.5 emu g-1, while that synthesized at pH 3 is unsaturated with a maximum measured magnetization of 48.4 emu g-1. Cyclic voltammetry and charge-discharge curves indicate a battery-type behavior, with an better performance for the material obtained at pH 9 (65 C g-1 at a specific current of 3 A g-1). The remarkable performance of the associated with its by microstructural characteristics (particle size, particle agglomeration and porosity). This work offers an alternative synthesis route for obtaining spinel ferrites for magnetic and electrochemical applications.

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The Temperature Effect on Magnetic Properties of NiFe2O4 Nanoparticles

Cited by 64 publications

References 50 publications

A Novel Approach for Fabricating LaMnO₃ Thin Films Using Combined Microwave Combustion and Pulsed Electron Deposition Techniques

A Novel Approach for Fabricating LaMnO₃ Thin Films Using Combined Microwave Combustion and Pulsed Electron Deposition Techniques

Nickel ferrite ceramics: combustion synthesis, sintering, characterization, and magnetic and electrical properties

The authors have requested that this preprint be removed from Research Square.

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The Temperature Effect on Magnetic Properties of NiFe2O4 Nanoparticles

Cited by 64 publications

References 50 publications

A Novel Approach for Fabricating LaMnO3 Thin Films Using Combined Microwave Combustion and Pulsed Electron Deposition Techniques

A Novel Approach for Fabricating LaMnO3 Thin Films Using Combined Microwave Combustion and Pulsed Electron Deposition Techniques

Nickel ferrite ceramics: combustion synthesis, sintering, characterization, and magnetic and electrical properties

The authors have requested that this preprint be removed from Research Square.

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A Novel Approach for Fabricating LaMnO₃ Thin Films Using Combined Microwave Combustion and Pulsed Electron Deposition Techniques

A Novel Approach for Fabricating LaMnO₃ Thin Films Using Combined Microwave Combustion and Pulsed Electron Deposition Techniques