Articles with "spinel ferrites" as a keyword



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Nanostructured Spinel Ferrites for Catalytic Combustion of Gasoline Vapors

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Published in 2017 at "Catalysis Letters"

DOI: 10.1007/s10562-017-2164-8

Abstract: Effect of partial substitution of Fe3+ with Sc3+ ions, in Ni–Co spinel nanoferrite, synthesized by self-combustion method, using polyvinyl alcohol as colloidal medium, on the structural and catalytic properties for the combustion of Pb-free gasoline… read more here.

Keywords: catalytic combustion; nanostructured spinel; spinel ferrites; combustion ... See more keywords
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Facile Synthesis of Spinel Ferrites with Enhanced Magnetic Properties from Two Intractable Metallurgical Resources: Zinc-Bearing Dust and Nickel Laterite Ore

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Published in 2018 at "Journal of Superconductivity and Novel Magnetism"

DOI: 10.1007/s10948-017-4531-5

Abstract: Nickel laterite ore and zinc-bearing dust are multi-metal-associated and intractable resources. Comprehensive and cooperative utilization of zinc-bearing dust and nickel laterite ore for the preparation of spinel ferrites with enhanced magnetic properties by a facile… read more here.

Keywords: zinc bearing; bearing dust; spinel ferrites; magnetic properties ... See more keywords
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Morphologically controlled dielectric dispersion and energy density optimization in Co/Ni spinel ferrites

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Published in 2020 at "Ceramics International"

DOI: 10.1016/j.ceramint.2019.12.246

Abstract: Abstract Precise control of morphology of functional materials, in particular when grown on nanoscale has revolutionized their physio-chemical characteristics for various applications. These nano-dimensional materials serve as basic building blocks for the development of new… read more here.

Keywords: spinel ferrites; energy density; morphologically controlled; energy ... See more keywords
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Effect of praseodymium ions on manganese based spinel ferrites

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Published in 2017 at "Chinese Journal of Physics"

DOI: 10.1016/j.cjph.2017.02.011

Abstract: Abstract The dielectric and electrical properties of praseodymium substituted MnFe 2 O 4 ferrite as a function of frequency (1 MHz–3 GHz) at room temperature have been studied. The dielectric constant and complex dielectric constant of these… read more here.

Keywords: spinel ferrites; effect praseodymium; ions manganese; praseodymium ions ... See more keywords
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Process development for selective precipitation of valuable metals and simultaneous synthesis of single-phase spinel ferrites from saprolite-limonite laterite leach liquors

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Published in 2017 at "Hydrometallurgy"

DOI: 10.1016/j.hydromet.2017.08.004

Abstract: Abstract To comprehensively utilize the laterite resources, the present study focused on the selective recovery of valuable metals Ni, Co or Al, Cr, and concurrent synthesis of spinel ferrites from saprolite-limonite laterite leach liquors by… read more here.

Keywords: saprolite limonite; selective precipitation; spinel ferrites; precipitation ... See more keywords
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Effect of co-substitution of Co–Zr on electromagnetic properties of Ni–Zn spinel ferrites at microwave frequencies

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Published in 2020 at "Journal of Alloys and Compounds"

DOI: 10.1016/j.jallcom.2020.157461

Abstract: Abstract The comprehensive study of the effect of substitution of cobalt and zirconium in nickel-zinc spinel ferrites is presented. Ni0.6Zn0.4(CoZr)xFe2-2xO4 ferrites have been successfully synthesized with sol-gel citrate precursor route with x varying from 0.05… read more here.

Keywords: substitution electromagnetic; spinel ferrites; electromagnetic properties; substitution ... See more keywords
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Nickel Spinel Ferrites: A review

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Published in 2021 at "Journal of Magnetism and Magnetic Materials"

DOI: 10.1016/j.jmmm.2020.167163

Abstract: Abstract Spinel ferrite is a class of magnetic materials which derives this name due to its similarity with the naturally occurring Mg Al 2 O 4 mineral. Also known by the name of ‘cubic ferrites’,… read more here.

Keywords: nickel ferrites; spinel ferrites; spinel; nickel spinel ... See more keywords
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Copper local structure in spinel ferrites determined by X-ray absorption and Mössbauer spectroscopy and their catalytic performance

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Published in 2019 at "Materials Research Bulletin"

DOI: 10.1016/j.materresbull.2018.09.017

Abstract: Abstract Magnetite and copper spinel ferrites were prepared by co-precipitation method and characterized by X-ray powder diffraction, 57Fe Mossbauer spectroscopy and scanning electron microscopy. XRD data showed the formation of cubic structure with particle sizes… read more here.

Keywords: spinel ferrites; copper; spectroscopy; copper local ... See more keywords
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Magnetic property and cation distributions in boron-doped MFe2O4(M = Ni, Mn) spinel ferrites

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Published in 2019 at "Results in Physics"

DOI: 10.1016/j.rinp.2019.102389

Abstract: Abstract (A)[B]2O4 spinel ferrites with initial compositions, BxM1−xFe2O4 (M = Ni or Mn), were prepared using the solid state reaction technique. X-ray photoelectron spectra indicate that there were only 25% of boron ions in the end samples… read more here.

Keywords: end samples; spinel ferrites; magnetic property; cation distributions ... See more keywords

Sustainable Cellulose Nanofibers-Mediated Synthesis of Uniform Spinel Zn-Ferrites Nanocorals for High Performances in Supercapacitors

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Published in 2023 at "International Journal of Molecular Sciences"

DOI: 10.3390/ijms24119169

Abstract: Spinel ferrites are versatile, low-cost, and abundant metal oxides with remarkable electronic and magnetic properties, which find several applications. Among them, they have been considered part of the next generation of electrochemical energy storage materials… read more here.

Keywords: ferrites nanocorals; energy; nanofibers mediated; spinel ... See more keywords