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ferrite prepared with controlled morphology and size to enhance the surface area, and thus the number of active sites, has been published. One disadvantage of the cobalt ferrite for some applications is their low electrical conductivity. Nanostructures of cobalt ferrite with different shape can be synthesized on conducting substrates, such as reduced graphene oxide, to alleviate this disadvantage.
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Cobalt ferrite can be also used as electrocatalyst for oxygen evolution reaction and as material for fabricating electrodes for electrochemical capacitors (also named supercapacitors) for energy storage. These uses take advantage of the redox reactions occurring at the surface of the ferrite. Cobalt
311:. Moreover, its magnetostrictive properties can be tuned by inducing a magnetic uniaxial anisotropy. This can be done by magnetic annealing, magnetic field assisted compaction, or reaction under uniaxial pressure. This last solution has the advantage to be ultra fast (20 min) thanks to the use of
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Ortiz-Quiñonez, Jose-Luis; Das, Sachindranath; Pal, Umapada (October 2022). "Catalytic and pseudocapacitive energy storage performance of metal (Co, Ni, Cu and Mn) ferrite nanostructures and nanocomposites".
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283:). The substance can be considered as between soft and hard magnetic material and is usually classified as a semi-hard material.
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Hosni (2016). "Semi-hard magnetic properties of nanoparticles of cobalt ferrite synthesized by the co-precipitation process".
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586:"Enhancement of the Magnetoelectric Effect in Multiferroic CoFe2O4/PZT Bilayer by Induced Uniaxial Magnetic Anisotropy"
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537:"Uniaxial anisotropy and enhanced magnetostriction of CoFe2O4 induced by reaction under uniaxial pressure with SPS"
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It is mainly used for its magnetostrictive applications like sensors and actuators thanks to its high saturation
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Lo (2005). "Improvement of magnetomechanical properties of cobalt ferrite by magnetic annealing".
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J. C. Slonczewski (1958). "Origin of
Magnetic Anisotropy in Cobalt-Substituted Magnetite".
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Wang (2015). "Magnetostriction properties of oriented polycrystalline CoFe2O4".
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Except where otherwise noted, data are given for materials in their
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415:"Co-ferrite – A material with interesting magnetic properties"
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IOP Conference Series: Materials
Science and Engineering
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381:"Design and application of magnetostrictive materials"
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510:Journal of Magnetism and Magnetic Materials
307:free, which makes it a good substitute for
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166:Key: MMOVVVBHLUGHGW-UHFFFAOYSA-N
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413:Sato Turtelli; et al. (2014).
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684:. You can help Knowledge (XXG) by
563:10.1016/j.jeurceramsoc.2017.03.036
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267:with the chemical formula of CoFe
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163:InChI=1S/Co.2Fe.4O/q+2;2*+3;4*-2
354:Journal of Alloys and Compounds
245:(at 25 °C , 100 kPa).
590:IEEE Transactions on Magnetics
475:IEEE Transactions on Magnetics
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31:cobalt(2+);iron(3+);oxygen(2-)
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651:10.1016/j.pmatsci.2022.100995
639:Progress in Materials Science
432:10.1088/1757-899X/60/1/012020
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303:has also the benefits to be
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317:magnetoelectric effect
313:spark plasma sintering
746:Cobalt(II) compounds
751:Iron(III) compounds
584:Aubert, A. (2017).
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235: g·mol
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645:: 100995.
603:1803.09677
554:1803.09656
425:: 012020.
339:References
309:Terfenol-D
305:rare-earth
228:Molar mass
89:ChemSpider
65:3D model (
54:12052-28-7
44:CAS Number
28:IUPAC name
571:118914808
118:234-992-3
110:EC Number
741:Ferrites
678:material
620:25427820
495:45873667
327:See also
141:44602546
98:21241477
333:Ferrite
275:(CoO·Fe
265:ferrite
233:234.619
128:PubChem
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384:(PDF)
155:InChI
67:JSmol
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