Results 161 to 170 of about 130,314 (335)

Dissolution of Spent Lithium‐Ion Battery Cathode Materials: Overlooked Significance of Aluminum Impurities

open access: yesAdvanced Science, EarlyView.
During the mechanical crushing of retired lithium‐ion batteries, aluminum foil from current collectors may penetrate NCM active crystals through frictional contact, forming more stable Al─O bonds. The dissolution behavior of critical metals in NCM cathodes will be influenced to varying extents by different mechanisms in various hydrometallurgical ...
Kang Liu   +5 more
wiley   +1 more source

New Insights into Heavy Metal Sequestration Through Metal‐Phenolic Network‐Confined Nano‐HFO: Overlooking Iron Utilization and Modulating Electron Density

open access: yesAdvanced Science, EarlyView.
Iron‐based nanocomposites are widely used for trace heavy metal removal, but the low utilization of HFO nanoparticles remains a challenge. Here, a metal‐phenolic network (MPN) strategy is proposed to confine nano‐HFO within polystyrene beads, creating a negative electrostatic field and optimizing electron density at oxygen sites. This approach enhances
Manyu Zhang   +9 more
wiley   +1 more source

Vermicular Eutectic Multi‐Principal Element Alloy with Exceptional Strength and Ductility

open access: yesAdvanced Science, EarlyView.
Eutectic multi‐principal element alloys (EMPEAs) typically exhibit rod‐like or lamellar microstructures, constraining further mechanical improvements. This study introduces a novel (AlCrFe2)65Ni35 EMPEA with a unique vermicular microstructure, achieving unprecedented strength‐ductility synergy.
Liufei Huang   +11 more
wiley   +1 more source

Transition Metal Slab Gliding: One Key Process for Activating Anionic Redox Reaction in P2‐Type Transition Metal Oxide Cathodes

open access: yesAdvanced Science, EarlyView.
Transition metal (TM) slab gliding is a key process for activating anionic redox reaction in P‐type layered oxide materials. Disordered TM layer weakens interlayer interactions and facilitates TM slab gliding. The resulting O‐type layer promotes reversible TM migration, provides the necessary Na–O–□TM configuration, and activates anionic redox reaction.
Dongxiao Wang   +12 more
wiley   +1 more source

Defect‐Engineered Multi‐Intermetallic Heterostructures as Multisite Electrocatalysts for Efficient Water Splitting

open access: yesAdvanced Science, EarlyView.
A self‐supporting nanoporous multicomponent CoCuMoNi catalyst is synthesized. Through the synergistic effect of multiphase interfaces, built‐in electric fields, and defect engineering, the binding energy of key reaction intermediates in hydrogen evolution reaction (HER)/oxygen evolution reaction (OER) is modulated, achieving high activity and stability
Xiang‐Feng Wu   +8 more
wiley   +1 more source

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