Preparation of W-Cu Composite Powders by Hydrogen Reduction of WO3 And Copper Nitrate Mixture [PDF]
Archives of Metallurgy and MaterialsThe synthesis of fine W composite powder with homogeneously dispersed Cu particles was investigated. Commercial or ultrasonic spray pyrolysis WO3 powders were used as source materials of W, and copper nitrate was added and hydrogen-reduced to finally ...
Ji Won Choi +4 more
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High-Moment FeCo Magnetic Nanoparticles Obtained by Topochemical H2 Reduction of Co-Ferrites
Applied Sciences, 2022 Cobalt ferrite nanoparticles of different stoichiometries synthesized by a sol–gel autocombustion method were used as a starting material to obtain high-moment Fe50Co50 and Fe66Co34 metal nanoparticles by topochemical hydrogen reduction.
Alexander Omelyanchik +11 more
doaj +1 more source
Waste, 2023 Cobalt’s pivotal role in global development, especially in lithium-ion batteries, entails driving increased demand and strengthening global trading networks. The production of different waste solutions in metallurgical operations requires the development
Saliha Keita +6 more
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Obtaining W – 20wt%Cu Composite Powders from Ammonium Paratungstate and Copper Nitrate Precursors Prepared by High-Energy Ball Milling [PDF]
Materials ResearchThe aim of this work was to obtain the W-20wt%Cu composite from the precursors powders APT and NCu. The APT-8.54wt%NCu composition was milled for 20 hours and reduced at 700 °C, 750 °C, 800 °C, 850 °C for 30 minutes, and at 800 °C for 60 minutes, all ...
Paulo Sergio Paraguai Santana +5 more
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The investigation of chemical vapor deposited copper-based niobium films
Materials Research Express, 2021 The deposition of niobium film on copper with excellent superconducting property at low-temperature conditions, used as superconducting radio frequency (SRF) cavity, is a serious and urgent technical problem to be solved at present.
Min Li +16 more
doaj +1 more source
Optical Excitation of a Nanoparticle Cu/p-NiO Photocathode Improves Reaction Selectivity for CO₂ Reduction in Aqueous Electrolytes [PDF]
, 2020 We report the light-induced modification of catalytic selectivity for photoelectrochemical CO₂ reduction in aqueous media using copper (Cu) nanoparticles dispersed onto p-type nickel oxide (p-NiO) photocathodes.
Atwater, Harry A. +5 more
core +1 more source
A Study on the Stability Fields of Arc Plasma in the HPSR Process
Metals, 2020 One of the major challenges for Europe’s future steel production will be minimizing the inherent process emissions in the production of crude steel based on iron ores. In this case, mainly the reduction of CO2 emissions is a focus.
Michael Andreas Zarl +2 more
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Modelling a new, low CO2 emissions, hydrogen steelmaking process
, 2013 In an effort to develop breakthrough technologies that enable drastic reduction in CO2 emissions from steel industry (ULCOS project), the reduction of iron ore by pure hydrogen in a direct reduction shaft furnace was investigated.
Da Costa, Andrea Ranzani +2 more
core +3 more sources
Effect of Nitrate, Acetate and Hydrogen on Native Perchlorate-reducing Microbial Communities and Their Activity in Vadose Soil [PDF]
, 2011 The effect of nitrate, acetate, and hydrogen on native perchlorate-reducing bacteria (PRB) was examined by conducting microcosm tests using vadose soil collected from a perchlorate-contaminated site.
Hristova, Krassimira R. +5 more
core +2 more sources
Recovery of Titanium and Aluminum from Secondary Waste Solutions via Ultrasonic Spray Pyrolysis
MetalsThe synthesis of oxide nanopowders through ultrasonic spray pyrolysis (USP) represents a sustainable method for producing high-purity, spherical particles tailored for advanced material applications.
Srećko Stopić +6 more
doaj +1 more source