A Review on Synthesis, Properties and Applications on Cobalt Ferrite

Kashid, P.B.; Suresh, H. K.; Mathad, S. N.; Shedam, Rakesh M.; Shedam, Mahadev R.

doi:10.29294/ijase.9.1.2022.2567-2583

Cited by 10 publications

(2 citation statements)

References 18 publications

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“…The volume expansion and the internal energy produced during calcination may also lead to particle growth. The SiO 2 matrix reduces the number of particles that interact with each other and, thus, reduces particle agglomeration [10,11,18,42,53,54].…”

Section: Morphology and Surface Parameters Of Undoped And Doped Cofe 2 Omentioning

confidence: 99%

“…The properties of CoFe 2 O 4 can be easily tailored as they depend on the synthesis method, composition, doping ions, and particle size distribution [4,10,11]. The properties of CoFe 2 O 4 doped with divalent (Mg 2+ , Cu 2+ , Ni 2+ , Zn 2+ , Mn 2+ ) and trivalent (La 3+ , Ru 3+ , Gd 3+ , Al 3+ ) ions were extensively studied [12][13][14][15][16][17][18], while the doping with monovalent ions received less attention. The most common monovalent ion for ferrite doping is Ag + due to its antibacterial activity against different pathogens [19].…”

Section: Introductionmentioning

confidence: 99%

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Screening of Mono-, Di- and Trivalent Cationic Dopants for the Enhancement of Thermal Behavior, Kinetics, Structural, Morphological, Surface and Magnetic Properties of CoFe2O4-SiO2 Nanocomposites

Dippong

Levei

Petean

et al. 2023

IJMS

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CoFe2O4 is a promising functional material for various applications. The impact of doping with different cations (Ag+, Na+, Ca2+, Cd2+, and La3+) on the structural, thermal, kinetics, morphological, surface, and magnetic properties of CoFe2O4 nanoparticles synthesized via the sol-gel method and calcined at 400, 700 and 1000 °C is investigated. The thermal behavior of reactants during the synthesis process reveals the formation of metallic succinates up to 200 °C and their decomposition into metal oxides that further react and form the ferrites. The rate constant of succinates’ decomposition into ferrites calculated using the isotherms at 150, 200, 250, and 300 °C decrease with increasing temperature and depend on the doping cation. By calcination at low temperatures, single-phase ferrites with low crystallinity were observed, while at 1000 °C, the well-crystallized ferrites were accompanied by crystalline phases of the silica matrix (cristobalite and quartz). The atomic force microscopy images reveal spherical ferrite particles covered by an amorphous phase, the particle size, powder surface area, and coating thickness contingent on the doping ion and calcination temperature. The structural parameters estimated via X-ray diffraction (crystallite size, relative crystallinity, lattice parameter, unit cell volume, hopping length, density) and the magnetic parameters (saturation magnetization, remanent magnetization, magnetic moment per formula unit, coercivity, and anisotropy constant) depend on the doping ion and calcination temperature.

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Section: Morphology and Surface Parameters Of Undoped And Doped Cofe 2 Omentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Screening of Mono-, Di- and Trivalent Cationic Dopants for the Enhancement of Thermal Behavior, Kinetics, Structural, Morphological, Surface and Magnetic Properties of CoFe2O4-SiO2 Nanocomposites

Dippong

Levei

Petean

et al. 2023

IJMS

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Cobalt‐Based Materials in Supercapacitors and Batteries: A Review

Goudar,

S. N.,

Chapi

et al. 2024

Adv Energy and Sustain Res

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Energy demand has become a persistent concern and high‐performance energy storage systems have increasingly undergone development. Supercapacitors and batteries pose great impact on energy storage and garner a great deal of attention from technologies and researchers alike. The performance of energy saving devices is primarily determined by the electrode material in terms of high specific capacitance, excellent conductivity, remarkable natural abundance, and unique electrochemical qualities, also large surface area. Cobalt (Co)‐based materials are unique electrode materials widely used in energy storage devices. Nevertheless, a combination of Co and ferrite materials such as nickel, zinc, and copper, or Co/nonferrite materials like metal–organic frameworks and layered double hydroxides has improved their ultimate efficiency. This review deals with energy storage applications of Co‐based materials, categorizing ferrites, their electrochemical characterization, performance, also design and manufacturing intended to supercapacitors and batteries applications. Summarizing the main outcomes of the literature on batteries and supercapacitors, energy storage systems comprising Co‐based materials combined with carbon nanotubes, graphene, silica, copper, zinc, nickel, cadmium, ferrous, and lanthanum are reviewed and discussed. Lithium‐ion batteries are investigated specifically, and perspectives on Co‐based ferrite development for future generations of supercapacitors and batteries are outlined.

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Cobalt Ferrites: Formation From Nitrate Solutions Under the Action of DC Discharge

Smirnova,

Shutov,

Ivanov

et al. 2023

Plasma Chem Plasma Process

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A new method for obtaining ultra ne particles of cobalt ferrites is proposed. This synthesis is a two-step process: the rst step is the synthesis of ultra ne particles from aqueous solutions of nitrates under the action of non-equilibrium low-temperature plasma. The second stage is high-temperature treatment of the resulting powders. The action of plasma on solutions of iron and cobalt nitrates leads to the formation of a colloidal suspension at the plasma-solution interface in the liquid anode. The kinetics of coprecipitation from solutions under the action of plasma has been studied. It is shown that the process of formation is complex, includes several stages. The rate of formation of particles directly depends on the concentration of iron nitrate in the initial mixture. An increase in the discharge current leads to an increase in the rate of particle formation. The obtained substances were studied immediately after the plasma-solution interaction, after centrifugation, and after high-temperature treatment. X-ray diffraction analysis showed that the resulting ultra ne particles are a mixture of hydroxonitrites and hydroxides of cobalt and iron. The data of thermogravimetric analysis con rm the data of X-ray diffraction analysis. The surface morphology was studied using a scanning electron microscope; the resulting powders have a well-developed surface. The resulting particles are characterized by two sizes, 92 nm and 1.46 µm. The magnetic characteristics of the particles were studied using a vibrating magnetometer at room temperature with a maximum applied eld of up to 30 kOe. The coercive force of the obtained particles was 210 Oe. The saturation magnetization (M S ) obtained at room temperature was found to be 65 emu/g and remanent magnetization (M r ) was 22 emu/g.

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A Review on Synthesis, Properties and Applications on Cobalt Ferrite

Cited by 10 publications

References 18 publications

Screening of Mono-, Di- and Trivalent Cationic Dopants for the Enhancement of Thermal Behavior, Kinetics, Structural, Morphological, Surface and Magnetic Properties of CoFe2O4-SiO2 Nanocomposites

Screening of Mono-, Di- and Trivalent Cationic Dopants for the Enhancement of Thermal Behavior, Kinetics, Structural, Morphological, Surface and Magnetic Properties of CoFe2O4-SiO2 Nanocomposites

Cobalt‐Based Materials in Supercapacitors and Batteries: A Review

Cobalt Ferrites: Formation From Nitrate Solutions Under the Action of DC Discharge

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