Magnetization Study of Cobalt Ferrite by Mean Field Approximation

Ouaissa, Samia; Benyoussef, A.; Abo, Gavin S.; Ouaissa, Mohamed; Hafid, M.

doi:10.1016/j.phpro.2015.12.103

Cited by 13 publications

(7 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The magnetization trend of the ferrite samples is due to the contributions of the magnetic moments from Fe 3+ and Co 2+ at B-sites [33,34]. Neel's phenomenological model is applied to elucidate the magnetic parameters in LiCoFeO4 ferrites nanoparticles.…”

Section: Resultsmentioning

confidence: 99%

Assessing of channel structure and magnetic properties on heavy metal ions removal from water

Ateia

Arman

2021

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

The synthesis of Li1.1Co0.3Fe2.1O4 ferrite nanoparticles has been synthesized by the citrate auto combustion method. The distribution of cations on A-site and B-site was studied by X-ray Diffraction (XRD), High-Resolution Transmission Electron Microscopy (HRTEM). The crystallite size and strain were calculated by using the W-H (Williamson-Hall) plot. The crystallite of Li1.1Co0.3Fe2.1O4 ferrite nanoparticle is ∼30 nm. HRTEM confirmed the homogeneous formation of the cubic phase. The calculated height and spacing parameters related to roughness are essential to achieve the efficiency of Li1.1Co0.3Fe2.1O4 to be used in microbatteries, smart windows, smart mirrors, displays, gas sensors, and other applications. According to the obtained data, the Li1.1Co0.3Fe2.1O4 has a spiky surface with Rku = 5.50. Additionally, the magnetic hysteresis loop has been clarified using the Vibrating Sample Magnetometer (VSM). The double peak characteristic in the Switching field distribution (SFD) reveals the competition between exchange coupling and strong dipolar interactions. Li1.1Co0.3Fe2.1O4 has employed as a sorbent material for the removal of lead (II) ions from wastewater. The main advantages of the synthesized sample are ease of separation, high adsorption, low cost as well as recycled with notable efficiency. Two models of adsorption isotherms (Freundlich and Langmuir) are utilized to recognize the adsorption mechanism.

show abstract

Section: Resultsmentioning

confidence: 99%

Assessing of channel structure and magnetic properties on heavy metal ions removal from water

Ateia

Arman

2021

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

show abstract

“…In this circumstance, millimetre-sized single crystals of CoFe 2 O 4 show almost an insignificant coercive field. Moreover, at 300 K, the crystallites CoFe 2 O 4 samples sized 120 and 40 nm exhibit coercive fields of about 453 and 4650 Oe, respectively (Amiri and Shokrollahi 2013;Ouaissa et al 2015;Houshiar et al 2014).…”

Section: Cobalt Ferrite Cofe 2 O 4 Nanoparticlesmentioning

confidence: 99%

“…Spinel ferrites constitute metal oxide compounds of minute classes of transition metals that are originally obtained from magnetite (Fe 3 O 4 ). The spinel ferrites exhibit good magnetic and electrical characteristics, which has brought about its broad applications in high-density data storage, water remediation, drug delivery, sensors, spintronics, immunoassays using magnetic labeling, hyperthermia of cancer cells, optical limiting, magnetocaloric refrigeration and magnetic resonance imaging (Farid et al 2017;Dar and Varshney 2017;Amirabadizadeh et al 2017;Pour et al 2017;Alcalá et al 2017;Yan and Luo 2017;Sharma et al 2017;Winder 2016;Samoila et al 2017;Niu et al 2017;Anupama et al 2017;El Moussaoui et al 2016;Patil et al 2016;Ghafoor et al 2016;Ashour et al 2018;Amiri and Shokrollahi 2013;Ouaissa et al 2015;Houshiar et al 2014;Maksoud et al 2020a, b;Abdel Maksoud et al 2020a;Hassan et al 2019;Patil et al 2018;Žalnėravičius et al 2018;Thiesen and Jordan 2008;Koneracká et al 1999;Arruebo et al 2007;Basuki et al 2013;Gupta and Gupta 2005a, b;Jain et al 2008;Liu et al 2005;Abdel Maksoud et al 2020b). Besides these applications, raising attention in energy storage research via dissemination is due to the fast-growing demand for electronic devices that are manufactured to be smaller, lighter and relatively cheaper.…”

Section: Supercapacitor-based On Spinel Ferritesmentioning

confidence: 99%

Advanced materials and technologies for supercapacitors used in energy conversion and storage: a review

et al. 2020

View full text Add to dashboard Cite

Supercapacitors are increasingly used for energy conversion and storage systems in sustainable nanotechnologies. Graphite is a conventional electrode utilized in Li-ion-based batteries, yet its specific capacitance of 372 mA h g −1 is not adequate for supercapacitor applications. Interest in supercapacitors is due to their high-energy capacity, storage for a shorter period and longer lifetime. This review compares the following materials used to fabricate supercapacitors: spinel ferrites, e.g., MFe 2 O 4 , MMoO 4 and MCo 2 O 4 where M denotes a transition metal ion; perovskite oxides; transition metals sulfides; carbon materials; and conducting polymers. The application window of perovskite can be controlled by cations in sublattice sites. Cations increase the specific capacitance because cations possess large orbital valence electrons which grow the oxygen vacancies. Electrodes made of transition metal sulfides, e.g., ZnCo 2 S 4 , display a high specific capacitance of 1269 F g −1 , which is four times higher than those of transition metals oxides, e.g., Zn-Co ferrite, of 296 F g −1. This is explained by the low charge-transfer resistance and the high ion diffusion rate of transition metals sulfides. Composites made of magnetic oxides or transition metal sulfides with conducting polymers or carbon materials have the highest capacitance activity and cyclic stability. This is attributed to oxygen and sulfur active sites which foster electrolyte penetration during cycling, and, in turn, create new active sites.

show abstract

“…Nanocrystalline materials such as metals oxides [1][2][3], magnetite [4,5], and spinel ferrites [6][7][8][9][10] have enormous structures and suitable dielectric and magnetic properties for intelligent applications. Over the last decade, spinel ferrites attracted much attention due to their unique structural, elastic, dielectric and magnetic properties [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

“…In this context, CFO single crystals of millimeter-sized showed nearly-negligible coercive fields. Further, at 300 K, CFO samples with crystallites size 120 and 40 nm exhibited coercive fields equal to 453 and 4650 Oe, respectively [6][7][8]. In this context, Yaseneva et al [32] addressed the effect of substituting cobalt with Zn 2+ ions in Zn x Co 1−x Fe 2 O 4 prepared via co-precipitation method on Curie temperature (T c ).…”

Section: Introductionmentioning

confidence: 99%

Unveiling the Effect of Zn2+ Substitution in Enrichment of Structural, Magnetic, and Dielectric Properties of Cobalt Ferrite

Maksoud

Elghandour

El-Sayyad

et al. 2020

J Inorg Organomet Polym

View full text Add to dashboard Cite

This work reports the detailed structural characterization of Zn 2+ ion-substituted cobalt ferrite nanoparticles (CFO NPs; Co 1−x Zn x Fe 2 O 4 ; x = 0.00, 0.25, 0.50, and 0.75), prepared using a facile sol-gel method. It correlates structural changes with magnetic and dielectric properties. The as-synthesized samples were investigated by X-ray diffraction (XRD) analysis, BET surface area analyzer, energy-dispersive X-ray (EDX), Fourier transform infrared (FTIR), scanning electron microscopy (SEM), vibrating sample magnetometer (VSM), Mössbauer spectroscopy, and impedance analyzer. The pristine sample (CFO) comprised of NPs with 25 nm size, which decreased up to 11 nm upon the formation of Zn 0.75 Co 0.25 Fe 2 O 4 . The N 2 adsorption-desorption isotherm of the prepared Zn 0.5 Co 0.5 Fe 2 O 4 sample confirmed the presence of a mesoporous structure. SEM images revealed that all prepared samples exhibited porous surface with honeycomb-like structures. The cationic distribution was described by Mössbauer spectra. The increment of Zn ions in the prepared samples resulted in sharp reduction of saturation magnetization and remanence values. The normal dielectric dispersion behavior was recorded and can be ascribed to the Maxwell-Wagner type polarization. Besides, the dielectric parameters varied by increasing Zn content in CFO NPs. This may be ascribed to O 2 vacancies and Fe 3+ ions in A-and B-sites. Dielectric studies revealed that, content of Zn ions beyond x = 0.25 was sufficient to reduce both dielectric constant and loss at low frequencies.

show abstract

Magnetization Study of Cobalt Ferrite by Mean Field Approximation

Cited by 13 publications

References 12 publications

Assessing of channel structure and magnetic properties on heavy metal ions removal from water

Assessing of channel structure and magnetic properties on heavy metal ions removal from water

Advanced materials and technologies for supercapacitors used in energy conversion and storage: a review

Unveiling the Effect of Zn2+ Substitution in Enrichment of Structural, Magnetic, and Dielectric Properties of Cobalt Ferrite

Contact Info

Product

Resources

About