Articles with "spinel" as a keyword



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Nanoscale Manipulation of Spinel Lithium Nickel Manganese Oxide Surface by Multisite Ti Occupation as High-Performance Cathode.

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Published in 2017 at "Advanced materials"

DOI: 10.1002/adma.201703764

Abstract: A novel two-step surface modification method that includes atomic layer deposition (ALD) of TiO2 followed by post-annealing treatment on spinel LiNi0.5 Mn1.5 O4 (LNMO) cathode material is developed to optimize the performance. The performance improvement… read more here.

Keywords: surface; spinel; cathode; nanoscale manipulation ... See more keywords
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Oxidative Dehydrogenation of n‐Octane over Niobium‐Doped NiAl2O4: An Example of Beneficial Coking in Catalysis over Spinel

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Published in 2018 at "ChemCatChem"

DOI: 10.1002/cctc.201701940

Abstract: NiAl2O4‐based materials are known as enhanced catalysts for several catalytic applications that have coke deposition in common. In this study, Nb as a dopant was found to occupy the octahedral sites of the spinel preferably.… read more here.

Keywords: dehydrogenation octane; octane niobium; spinel; coke deposition ... See more keywords
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Sol-Gel-Derived Ordered Mesoporous High Entropy Spinel Ferrites and Assessment of Their Photoelectrochemical and Electrocatalytic Water Splitting Performance.

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Published in 2023 at "Small"

DOI: 10.1002/smll.202205412

Abstract: The novel material class of high entropy oxides with their unique and unexpected physicochemical properties is a candidate for energy applications. Herein, it is reported for the first time about the physico- and (photo-) electrochemical… read more here.

Keywords: spectroscopy; water splitting; entropy; ordered mesoporous ... See more keywords
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Terahertz Dielectric Properties of Polycrystalline MgAl2O4 Spinel Obtained by Microwave Sintering and Hot Pressing

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Published in 2019 at "Journal of Infrared, Millimeter, and Terahertz Waves"

DOI: 10.1007/s10762-019-00582-4

Abstract: This paper describes the fabrication of polycrystalline magnesium aluminate spinel (MgAl2O4) by microwave sintering and hot pressing and the investigation of its dielectric properties in the millimeter-wave and terahertz frequency range. The dielectric properties were… read more here.

Keywords: hot pressing; dielectric properties; range; sintering hot ... See more keywords
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Novel Synthesis of Spinel MnxCo1−xAl2O4 (x = 0.0 to 1.0) Nanocatalysts: Effect of Mn2+ Doping on Structural, Morphological, and Opto-Magnetic Properties

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Published in 2017 at "Journal of Superconductivity and Novel Magnetism"

DOI: 10.1007/s10948-016-3866-7

Abstract: In this present study, Mn2+doped CoAl2O4 (MnxCo1−xAl2O4; x = 0.0 to 1.0) spinel nanoparticles were synthesized by microwave combustion method using nitrates of Co, Mn, and Al as the starting materials and urea was used… read more here.

Keywords: mn2; microscopy; spinel; mnxco1 xal2o4 ... See more keywords
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Spinel Production1

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Published in 2017 at "Refractories and Industrial Ceramics"

DOI: 10.1007/s11148-017-0074-3

Abstract: Methods are described for producing aluminium-magnesium spinel by solid phase synthesis using commercial alumina and caustic magnesite. It is proposed to replace commercial alumina by dust deposited in the aspiration system for an aluminum hydroxide… read more here.

Keywords: spinel; spinel production1;
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Non-metallic electronic regulation in CuCo oxy-/thio-spinel as advanced oxygen evolution electrocatalysts

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Published in 2020 at "Science China Chemistry"

DOI: 10.1007/s11426-020-9895-2

Abstract: Developing cost-effective and high-performance oxygen evolution reaction (OER) electrocatalysts has become the intense research on pursuing emerging renewable energy conversion, in which exploring and investigating the intrinsic nature of efficient and stable CuCo spinel catalysts… read more here.

Keywords: oxygen evolution; cuco; spinel; thio spinel ... See more keywords
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Experimental Study on the Formation of V-Rich Spinel Phase in CaO-SiO2-MgO-FeOt-Al2O3-V2O3-P2O5 Slags at 1573 K (1300 °C)

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Published in 2019 at "Metallurgical and Materials Transactions B"

DOI: 10.1007/s11663-018-1486-2

Abstract: To concentrate vanadium dissolved in steelmaking slag and to separate the obtained vanadium (V)-concentrating phase by a magnetic method, the mineral phases in a CaO-SiO2-MgO-FeOt-Al2O3-V2O3-P2O5 system at 1573 K (1300 °C) were characterized by scanning-electron… read more here.

Keywords: phase; spinel; spinel phase; cao sio2 ... See more keywords
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Chemical pressure-stabilized post spinel-NaMnSnO4 as potential cathode for sodium-ion batteries

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Published in 2020 at "Bulletin of Materials Science"

DOI: 10.1007/s12034-020-02203-6

Abstract: Spinel LiMn 2 O 4 is a popular cathode material in lithium-ion batteries due to its high operating voltage and reversible specific capacity. Synthesizing analogous NaMn 2 O 4 in the spinel structure, for sodium-ion… read more here.

Keywords: sodium ion; spinel; ion batteries; pressure ... See more keywords
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Synthesis and characterization of BaFe2O4 nano-ferrites for gas sensor applications

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Published in 2018 at "Energy, Ecology and Environment"

DOI: 10.1007/s40974-018-0093-z

Abstract: AbstractBaFe2O4 spinel-type ferrite is synthesized by a simple auto-combustion method. The ferrites are based on spinel structure. The ideal spinel structure consists of the cubic close packing of oxygen anions with the tetrahedral (A site)… read more here.

Keywords: microscopy; spinel; gas sensor; gas ... See more keywords
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Effect of calcination on the production of sintered MgAl2O4 by using different local waste Al2O3 powders

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Published in 2017 at "Journal of the Australian Ceramic Society"

DOI: 10.1007/s41779-017-0114-y

Abstract: Magnesium aluminate spinel is one of the important synthetic minerals which have lots of applications in ceramic, refractories and chemical industries. In this research, two different types of alumina and magnesia sources were used to… read more here.

Keywords: calcination; waste; spinel; amount ... See more keywords