Results 51 to 60 of about 6,681 (230)

Effect of processing conditions on microstructural features in Mn&-Si sintered steels [PDF]

open access: yes, 2014
Sintering of steels containing oxidation sensitive elements is possible if such elements are alloyed with others which present lower affinity for oxygen.
Campos Gómez, Mónica   +3 more
core   +3 more sources

Advancing Upcycling and Regeneration of Spent LiFePO4: Failure Mechanisms and Recovery Strategies

open access: yesCarbon Energy, EarlyView.
This review studies the failure mechanism to promote the upcycling regeneration of spent lithium iron phosphate (S‐LFP). It first summarizes the failure mechanisms of LFP batteries revealed via advanced characterization technologies and then explores the respective advantages and challenges of hydrometallurgy and direct regeneration methods.
Yi Wang   +6 more
wiley   +1 more source

Exploring Enhanced Hydrolytic Dehydrogenation of Ammonia Borane with Porous Graphene-Supported Platinum Catalysts

open access: yesMolecules
Graphene is a good support for immobilizing catalysts, due to its large theoretical specific surface area and high electric conductivity. Solid chemical converted graphene, in a form with multiple layers, decreases the practical specific surface area ...
Zhenbo Xu, Xiaolei Sun, Yao Chen
doaj   +1 more source

3D printed porous biomass–derived SiCnw/SiC composite for structure–function integrated electromagnetic absorption

open access: yesVirtual and Physical Prototyping, 2022
Ceramic-based absorbing composite is irreplaceable in high-temperature conditions. This work has fabricated a novel biomass–derived porous SiCnw/SiC composite for structure–function integrated electromagnetic wave (EMW) absorption through selective laser
Changshun Wang   +8 more
doaj   +1 more source

Automated Additive Construction (AAC) for Earth and Space Using In-situ Resources [PDF]

open access: yes, 2016
Using Automated Additive Construction (AAC), low-fidelity large-scale compressive structures can be produced out of a wide variety of materials found in the environment.
Ali, Hisham   +32 more
core  

Beyond Activity: The Unified Framework of the Sabatier Principle to Guide Rational Design of Durable and Active Electrocatalysts

open access: yesCarbon Energy, EarlyView.
In this review, a unified framework of the Sabatier principle is applied to a diverse range of catalytic and electrocatalytic systems for advanced clean energy technologies, with a particular focus on the oxygen reduction reaction (ORR). This approach will guide the design and development of highly active and stable catalysts for fuel cells ...
Wanying Zhang   +6 more
wiley   +1 more source

Comparison of Direct Solar Energy to Resistance Heating for Carbothermal Reduction of Regolith [PDF]

open access: yes, 2011
A comparison of two methods of delivering thermal energy to regolith for the carbo thermal reduction process has been performed. The comparison concludes that electrical resistance heating is superior to direct solar energy via solar concentrators for ...
Gustafson, Robert J.   +1 more
core   +1 more source

Parameters Controlling the Oxide Reduction during Sintering of Chromium Prealloyed Steel [PDF]

open access: yes, 2013
Temperature intervals of oxide reduction processes during sintering of the Fe-3%Cr-0.5% Mo prealloyed powder using continuous monitoring of processing-exhaust gas composition (CO, CO2, and H2O) were identified and interpreted in relation to density (6.5 ...
Dudrova, Eva   +4 more
core   +2 more sources

Carbothermal reduction of bauxite

open access: yes, 2012
The commercial technologies for aluminium production include production of alumina from bauxite by the Bayer process and smelting of alumina to produce aluminium by Hall-Heroult process. The current technology is energy intensive, a major source of greenhouse gas emissions and harmful fluoride emissions.
openaire   +2 more sources

Purification of Li2CO3 Obtained through Pyrometallurgical Treatment of NMC Black Mass from Electric Vehicle Batteries

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
Lithium carbonate (Li2CO3) obtained from the black mass of recycled lithium batteries is dissolved in water under controlled conditions to remove lithium fluoride (LiF), which is present at a concentration of 3.08 % by weight. The dissolution is carried out at temperatures below 10 °C, and it has been demonstrated that lower temperatures result in ...
Laura Rosso   +3 more
wiley   +1 more source

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