Impact of nickel substitution on structure, magneto-optical, electrical and acoustical properties of cobalt ferrite nanoparticles

Vinosha, P. Annie; Manikandan, A.; Ragu, R.; Dinesh, A.; Thanrasu, K.; Slimani, Y.; Baykal, A.; Xavier, Belina

doi:10.1016/j.jallcom.2020.157517

Cited by 56 publications

(12 citation statements)

References 72 publications

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“…(Co 2+ ) ions reside in octahedral sites [8]. The comparison presented in Figure 8 shows that the experimental trend of nickel incorporation in lattice structure of Co 1-x Ni x Fe 2 O 4 spinel ferrite nanomaterial is well captured by the developed hybrid GBSVR model [8].…”

Section: Sensitivity and Convergence Of The Developed Hybridmentioning

confidence: 85%

“…Cationic radius characterizing the nanoparticles substituted for yttrium surfers no alteration since the octahedral site of iron remains unchanged. (Co 2+ ) ions reside in octahedral sites [8]. The comparison presented in Figure 8 shows that the experimental trend of nickel incorporation in lattice structure of Co 1-x Ni x Fe 2 O 4 spinel ferrite nanomaterial is well captured by the developed hybrid GBSVR model [8].…”

Section: Sensitivity and Convergence Of The Developed Hybridmentioning

confidence: 86%

“…The model also factors in the size of nanomaterial as its descriptor for estimating the specific surface area of spinel ferrite nanomaterial. The lattice distortion and the size of the nanomaterials with their corresponding specific surface area for forty spinel ferrite nanomaterials doped with different nanoparticles are extracted from the literature for the model development [5,7,8,18,[51][52][53][54][55]. The lattice strain as well as structural distortion in lattice structure of the parent spinel ferrite nanomaterial resulted from the introduced dopants definitely alters the material specific surface area.…”

Section: Acquisition and Description Of Spinel Ferritementioning

confidence: 99%

“…Other important characteristics of spinel ferrite nano-materials that promote their wider applicability include stability, being less expensive, and ease of preparation [5]. The specific surface area of spinel ferrite nanomaterials contributes significantly to their technological applications especially during organic pollutant treatment [6][7][8]. The significance of specific surface area and other physical properties of catalysts to pollutant treatment has been treated elsewhere [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

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Modeling the Specific Surface Area of Doped Spinel Ferrite Nanomaterials Using Hybrid Intelligent Computational Method

Owolabi

Saleh

Olubosede

et al. 2021

Journal of Nanomaterials

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Spinel ferrites nanomaterials are magnetic semiconductors with excellent chemical, magnetic, electrical, and optical properties which have rendered the materials useful in many technological driven applications such as solar hydrogen production, data storage, magnetic sensing, converters, inductors, spintronics, and catalysts. The surface area of these nanomaterials contributes significantly to their targeted applications as well as the observed physical and chemical features. Experimental doping has shown a great potential in enhancing and tuning the specific surface area of spinel ferrite nanomaterials while the attributed experimental challenges call for viable theoretical model that can estimate the surface area of doped spinel ferrite nanomaterials with high degree of precision. This work develops stepwise regression (STWR) and hybrid genetic algorithm-based support vector regression (GBSVR) intelligent model for estimating specific surface area of doped spinel ferrite nanomaterials using lattice parameter and the size of nanoparticle as descriptors to the models. The developed hybrid GBSVR model performs better than STWR model with the performance improvement of 7.51% and 22.68%, respectively, using correlation coefficient and root mean square error as performance metrics when validated with experimentally measured specific surface area of doped spinel ferrite nanomaterials. The developed GBSVR model investigates the influence of nickel, yttrium, and lanthanum nanoparticles on the specific surface area of different classes of spinel ferrite nanomaterials, and the obtained results agree excellently well with the measured values. The accuracy and precision characterizing the developed model would be of immense importance in enhancing specific surface area of doped spinel ferrite nanomaterial prediction with circumvention of experimental stress coupled with reduced cost.

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Section: Sensitivity and Convergence Of The Developed Hybridmentioning

confidence: 85%

Section: Sensitivity and Convergence Of The Developed Hybridmentioning

confidence: 86%

Section: Acquisition and Description Of Spinel Ferritementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Modeling the Specific Surface Area of Doped Spinel Ferrite Nanomaterials Using Hybrid Intelligent Computational Method

Owolabi

Saleh

Olubosede

et al. 2021

Journal of Nanomaterials

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“…The rst one is the electron hopping among Fe 2+ &Fe 3+ ions reduces by La 3+ /Fe 3+ ions replacement. The second is account for the increment of resistivity, originated from 3d-4f coupling of La ions, where the relation between resistivity and ε′ is inversely proportion [37].…”

Section: Dielectric Propertiesmentioning

confidence: 99%

Enhancing the Magnetization, Dielectric Loss and Photocatalytic Activity of Co-cu Ferrite Nanoparticles Via the Substitution of Rare Earth Ions

Abdo

Mansour

Al-Hazmi

et al. 2021

Preprint

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This study reports the impact of lanthanum substituted Co-Cu ferrite nanoparticles on the RhB dye disposal. Moreover, a complete investigation for the structural, magnetic and optical properties for Co0.5Cu0.5LaxFe2-xO4 (CCL) nanoferrites was executed. These nanocrystals synthesized via a combustion approach with a peculiar lattice parameter behavior; which discussed through three hypotheses. STEM-EDX micrographs of some selective samples confirm the nanocrystalline nature with presence of all constituents’ chemical elements CCL nanoferrites. The saturation magnetization of CCL nanoferrites was tuned with La3+ ions substitution. Contrary to the expected results, anisotropy constant introduced a decrement behavior with La/Fe substitution process. The microwave frequency (ωM) values for all CCL nanoparticles are in the range 11.87 GHz–9.46 GHz. The band gap has a peculiar behavior; a red shift and followed by a blue one. Through photodegradation testing, we explicate the RhB degradation mechanisms over our CCL nanoferrites. The nanoferrite Co0.5Cu0.5La0.15Fe1.85O4 has a moderate saturation magnetization, highest coercivity, and lowest loss which is a suitable candidate for data recording applications, furthermore can be utilized as a photocatalyst for RhB effluents removal with degradation efficiency 94.50% at 180 min solar radiation.

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Single‐Phase Precursors for the Preparation of Spinel Ferrites via Oxalate Route: the Study of Cobalt Ferrite Synthesis

Lisníková

Kopp

Vrba

et al. 2022

Chemistry A European J

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This work explores the benefits of single-phase oxalate precursors for the preparation of spinel ferrites by thermal decomposition. A direct comparison between the genuine oxalate solid solution and the physical mixture of simple oxalates is presented using the case study of cobalt ferrite preparation. The mixing of metal cations within a single oxalate structure could be verified prior to its thermal decomposition by several non-destructive experimental techniques, namely Mössbauer spectroscopy, X-ray powder diffraction (XRD) and energy-dispersive X-ray spectroscopy. In situ XRD experiments were conducted to compare the decomposition processes of the solid solution and the physical mixture. Additionally, the decomposition products of the FeCo oxalate solid solution were studied ex situ by means of N 2 adsorption, Mössbauer spectroscopy and XRD. The results obtained for different reaction temperatures demonstrate the possibilities to easily control the physical properties of the prepared oxides.

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Impact of nickel substitution on structure, magneto-optical, electrical and acoustical properties of cobalt ferrite nanoparticles

Cited by 56 publications

References 72 publications

Modeling the Specific Surface Area of Doped Spinel Ferrite Nanomaterials Using Hybrid Intelligent Computational Method

Modeling the Specific Surface Area of Doped Spinel Ferrite Nanomaterials Using Hybrid Intelligent Computational Method

Enhancing the Magnetization, Dielectric Loss and Photocatalytic Activity of Co-cu Ferrite Nanoparticles Via the Substitution of Rare Earth Ions

Single‐Phase Precursors for the Preparation of Spinel Ferrites via Oxalate Route: the Study of Cobalt Ferrite Synthesis

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