Structural and magnetic properties of Sr0.5Co0.5Fe2O4 nanoferrite

Abdallah, H. M. I.; Moyo, T.; Ezekiel, Itegbeyogene P.; Osman, Nadir S. E.

doi:10.1016/j.jmmm.2014.04.041

Cited by 12 publications

(3 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3c). 10 In normal spinel, all the divalent metal ions are present in tetrahedral sites whereas the trivalent metal ions are present in Various methods have been used for the synthesis of spinel compounds like coprecipitation, 12 Sol-gel, 18 Solvothermal, 20 microemulsion, 21 Mechanical milling, 22 Plasma, 23 Flux growth, 24 Solid-phase, 25 Combustion, 26 Microwave hydrothermal, 27 Pechini method, 28 Template, 29 Electrospinning, 30 Thermal treatment, 31 Spray pyrolysis, 32 Aerosol, 33 Forced Hydrolysis, 34 Glycol-thermal, 35 refluxing, 36 and microwave-assisted method. 37 Spinels have attracted a lot of interest because of their numerous redox states, terrific electrochemical stability, and pseudocapacitive behavior, making them promising candidates for electrochemical sensing.…”

Section: Perovskite Structure and Propertiesmentioning

confidence: 99%

Review—Perovskite/Spinel Based Graphene Derivatives Electrochemical and Biosensors

Santos

Sneha

Devarani

et al. 2021

J. Electrochem. Soc.

View full text Add to dashboard Cite

The development of sensors for the detection of different substances is a worldwide demand. Nanotechnology has allowed great advances in this area in an attempt to bring new possibilities. Sensors with perovskite and spinel structures have been widely investigated and demonstrated interesting performances, due to their fascinating optical, magnetic, and electrical properties. Despite this advancement, some limitations and drawbacks have to be resolved. Moreover, the combination of such structures with graphene derivatives has attracted particular attention in recent years; so far the obtained results manifest improved sensors’ performance, thanks to the effective combination of their individual properties. This comprehensive review aims to highlight the recent advances in Electrochemical and Biological nanosensors based on spinel and perovskite structures without and with graphene derivatives, by presenting sensing applications of diverse substances alongside advantages and futures challenges.

show abstract

Section: Perovskite Structure and Propertiesmentioning

confidence: 99%

Review—Perovskite/Spinel Based Graphene Derivatives Electrochemical and Biosensors

Santos

Sneha

Devarani

et al. 2021

J. Electrochem. Soc.

View full text Add to dashboard Cite

show abstract

“…Although the particle sizes could not be measured from the imaging techniques, the crystallite sizes of both Co 9 S 8 and Co 3 S 4 nanoparticles were then estimated by the Scherrer formula reported elsewhere and were 12.44 nm and 14.10 nm, respectively. 53,54 Here the synthesis temperature is lower: 270 • C compared to 450 • C for cobalt nanoparticles produced by the melt method (section 3.2). For synthesis at 450 • C, the particle size is higher for complex 3 and no significant change is observed for complex 4.…”

Section: Synthesis Of Cobalt Sulfide Nanoparticles By the Thermolysismentioning

confidence: 99%

Thermolytic synthesis of cobalt and cobalt sulfide nanoparticles using Cobalt(II) N ^ O Schiff base complexes as single molecular precursors

Khoza¹,

Masikane²,

Mlowe³

et al. 2018

Turk J Chem

Self Cite

View full text Add to dashboard Cite

Two novel N ∧ O-type Schiff base ligands and the corresponding Co(II) complexes are reported. Thermogravimetric analysis indicated that the complexes are potential molecular precursors for the fabrication of cobalt and cobalt-containing nanomaterials. The significant difference in the thermal decomposition profiles is recognized as an influence of structural differences on the complexes. Thus, the complexes were thermally decomposed using the melt and hot injection methods to examine the properties of the obtained cobalt and cobalt sulfide nanoparticles, respectively. The reaction parameters employed during the fabrication processes, in addition to structural differences, influenced the morphological and crystallographic phases and magnetic properties of the synthesized nanoparticles. We have investigated the morphological properties and the crystallographic phase compositions of the nanoparticles by various electron microscopy and diffraction techniques, as well as energy-dispersive X-ray spectroscopy. The melt reactions produced phase-pure cobalt nanoparticles, which exhibit ferromagnetic behavior. The hot injection method utilized 1dodecanethiol (DDT) as both sulfur source and capping agent. We indexed the DDT-capped cobalt sulfide nanoparticles to cubic Co 9 S 8 and Co 3 S 4 phases using powder X-ray diffraction, high-resolution transmission electron microscopy imaging, and selected area electron diffraction. The crystallite sizes for Co 9 S 8 and Co 3 S 4 nanoparticles, based on the Scherrer equation, were 12.4 nm and 14.1 nm, respectively. We find significant differences in the magnetic properties, attributed to nonmagnetic inclusions and vacancies due to the presence of S atoms.

show abstract

“…This low temperature type of distortion was also observed for ferrite nanoparticles(Gözüak et al 2009;Ammar et al 2001) being attributed to interparticle interactions. Recently, another work(Abdallah et al 2014) involving mixed ferrites pointed out a combination of hard and soft magnetic phases for the origin of this distortion. In our systems, this kink is more pronounced as the content of cobalt increases.…”

mentioning

confidence: 97%

Elaboração de nanopartículas de ferritas do tipo ZnxCo1-xFe2O4@y-Fe2O3, visando à elaboração de novos fluidos magnéticos para aplicações em hipertermia

Rodrigues¹

View full text Add to dashboard Cite

Structural and magnetic properties of Sr0.5Co0.5Fe2O4 nanoferrite

Cited by 12 publications

References 11 publications

Review—Perovskite/Spinel Based Graphene Derivatives Electrochemical and Biosensors

Review—Perovskite/Spinel Based Graphene Derivatives Electrochemical and Biosensors

Thermolytic synthesis of cobalt and cobalt sulfide nanoparticles using Cobalt(II) N ^ O Schiff base complexes as single molecular precursors

Elaboração de nanopartículas de ferritas do tipo ZnxCo1-xFe2O4@y-Fe2O3, visando à elaboração de novos fluidos magnéticos para aplicações em hipertermia

Contact Info

Product

Resources

About