Results 151 to 160 of about 12,207 (244)

Abundances of neutron capture elements in Population II stars

open access: bronze, 1988
Kalpana Krishnaswamy-Gilroy   +3 more
openalex   +1 more source

Metal‐Organic Open‐Framework Molecular Magnet Based on Vanadium Hexacyanoferrate Prussian Blue Analogs as Cathode Material for Advanced Potassium Ion Aqueous Battery

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
An aqueous potassium‐ion battery using vanadium hexacyanoferrate (VHCF) as the cathode and graphite as the anode is presented. During charge/discharge, K+ ions shuttle between electrodes through the electrolyte, enabling energy storage. The VHCF material demonstrates high capacity (≈121 mAh g−1), fast kinetics, and eco‐friendliness, making it a ...
Nilasha Maiti   +10 more
wiley   +1 more source

Chemical Bond Covalency in Superionic Halide Solid‐State Electrolytes

open access: yesAngewandte Chemie, EarlyView.
Achieving high conductivity in halide solid‐state electrolytes requires understanding key factors for ionic diffusion. This study provides direct evidence that metal‐halide covalent bonding controls superionic transitions and enhances Li+ mobility. Tailoring covalency through composition, demonstrated via in situ studies and simulations on bromide ...
Jiamin Fu   +17 more
wiley   +2 more sources

Bulk and Surface Reactivity of LiNi0.5Mn1.5O4 in Contact with (Acidic) Water

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
The comprehensive investigation of the influence of (acidic) water on LiNi0.5Mn1.5O4 as cobalt‐free lithium‐ion battery cathode material reveals that such treatment particularly affects a very thin layer at the particle surface, while the bulk material remains unaffected.
Annika R. Schuer   +16 more
wiley   +1 more source

Spinel‐Layered Heterostructure Enables Reversible Oxygen Redox in Lithium Manganese Oxide

open access: yesAngewandte Chemie, EarlyView.
A layered lithium manganese oxide with spinel heterostructures (LMO‐SH) was prepared via a novel synthetic method. It has lithium‐rich local environments and exhibits reversible oxygen redox activities, distinct from the conventional Li2MnO3. The spinel heterostructure provides extra Li+ pathways to activate the bulk activity and traps oxygen molecules
Yanfang Wang   +13 more
wiley   +2 more sources

Artificial Intelligence‐Assisted Target Design for High‐Intensity Laser‐Driven Neutron Sources

open access: yesAdvanced Intelligent Systems, EarlyView.
This study presents an artificial intelligence (AI)‐assisted target design that combines particle‐in‐cell simulations with gradient ascent algorithm to optimize laser‐driven neutron sources. By enhancing the sheath electric field, the optimized structure increases neutron yield by a factor of 4,000.
Youjing Wang   +7 more
wiley   +1 more source

Enhanced production of 60Fe in massive stars. [PDF]

open access: yesNat Commun
Spyrou A   +25 more
europepmc   +1 more source

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