Articles with "hydrogen reduction" as a keyword



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Cleaning Disposal of High-Iron Bauxite Residue Using Hydrothermal Hydrogen Reduction

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Published in 2022 at "Bulletin of Environmental Contamination and Toxicology"

DOI: 10.1007/s00128-022-03516-4

Abstract: The hydrothermal hydrogen reduction process for treating high-iron bauxite residue (red mud) was investigated, and the optimum conditions of alumina extraction as well as the enrichment of iron minerals were verified by experiments. Results show… read more here.

Keywords: hydrogen reduction; hydrothermal hydrogen; high iron; reduction ... See more keywords
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Preparation of CoFe2O4/CoFe Particles with Broadband Microwave Absorption by Hydrogen Reduction

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Published in 2021 at "Journal of Superconductivity and Novel Magnetism"

DOI: 10.1007/s10948-021-05876-0

Abstract: In this work, CoFe2O4/CoFe particles were prepared by two steps methods of ethylene glycol solvothermal and hydrogen reduction. The structure and morphology of the samples were characterized by X-ray diffraction and field-emission scanning electron microscopy.… read more here.

Keywords: cofe2o4 cofe; hydrogen reduction; cofe2o4;
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Preparation of Mo nanopowders through hydrogen reduction of a combustion synthesized foam-like MoO2 precursor

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Published in 2018 at "International Journal of Refractory Metals and Hard Materials"

DOI: 10.1016/j.ijrmhm.2018.05.015

Abstract: Abstract In this work, Nano-sized Mo particles were fabricated by solution combustion synthesis (SCS) followed by hydrogen reduction. A foam-like MoO2 precursor was first assembled using 20–30 nm nanoparticles generated by SCS. Subsequently, hydrogen reduction of… read more here.

Keywords: reduction; moo2 precursor; like moo2; foam like ... See more keywords
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Experimental and statistical optimization of the hydrogen reduction process of nickel oxide

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Published in 2018 at "Materials and Manufacturing Processes"

DOI: 10.1080/10426914.2017.1364751

Abstract: ABSTRACT Reduction of nickel oxide (NiO) by hydrogen gas is an affordable and simple way in comparison with the other chemical methods to produce and retrieve the pure nickel powder. Properties of the reduced Ni… read more here.

Keywords: reduction; hydrogen; statistical optimization; hydrogen reduction ... See more keywords
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Electrical and hydrogen reduction enhances kinetics in doped zirconia and ceria: I. grain growth study

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

DOI: 10.1111/jace.14615

Abstract: The kinetics of mass transport is central to ceramic processing and device stability. In this work, the effect of electrical and hydrogen reduction on the grain growth behavior of doped zirconia and ceria has been… read more here.

Keywords: doped zirconia; grain growth; hydrogen reduction; grain ... See more keywords
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Kinetic Regularities and Mechanisms of Hydrogen Reduction of Nanosized Oxide Materials in Thin Layers

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Published in 2017 at "Nanotechnologies in Russia"

DOI: 10.1134/s1995078017060076

Abstract: In this work the kinetic regularities of the hydrogen reduction of magnetic Fe3O4 nanoparticles in fine layers of powder are considered. The inapplicability of classical approaches to describe the kinetics of the reduction processes of… read more here.

Keywords: reduction; kinetic regularities; oxide materials; hydrogen reduction ... See more keywords
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Influence of Hydrogen Reduction on the Properties of Porous High-Nitrogen Austenitic Stainless Steel

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Published in 2022 at "Materials"

DOI: 10.3390/ma15165585

Abstract: This work explores the impact of hydrogen reduction on sintering and nitriding of porous high-nitrogen austenitic stainless steel (HNASS) processed via powder metallurgy. A temperature-resolved hydrogen reduction (temperature range of 700–1250 °C) was performed to… read more here.

Keywords: spectroscopy; reduction; hydrogen reduction; high nitrogen ... See more keywords