Results 171 to 180 of about 3,207,512 (305)

A large, long-lived, slowly-expanding superbubble across the Perseus arm. [PDF]

open access: yesNat Commun
Chen B   +7 more
europepmc   +1 more source

Low‐Voltage Controlled Coercivity in Nanocrystalline Fe‐Ni Films by Magneto‐Ionic Effects

open access: yesAdvanced Electronic Materials, EarlyView.
Fe‐Ni alloy films are introduced as magneto‐ionic material platform for energy‐efficient magnetic devices. In a compositional series of electrolyte‐gated Fe‐Ni films, the application of a voltage of around 1 V leads to magnetic property changes. The greatest effect, a >90% decrease in coercivity, occurs in near‐equiatomic alloys with ultra‐fine grains.
Anna Ullrich   +6 more
wiley   +1 more source

Highly Stabilized Ni‐Rich Cathodes Enabled by Artificially Reversing Naturally‐Formed Interface

open access: yesAdvanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
The application of Ni‐rich cathode materials is obstructed by interfacial and structural instability. This work proposes a facile and cost‐effective Al‐based vapor‐phase surface reaction strategy on Ni‐rich cathode to maintain its structural integrity from near‐surface to bulk.
Jinjin Ma   +11 more
wiley   +1 more source

A precise metallicity and carbon-to-oxygen ratio for a warm giant exoplanet from its panchromatic JWST emission spectrum. [PDF]

open access: yesProc Natl Acad Sci U S A
Wiser LS   +13 more
europepmc   +1 more source

An Electroanalytical Perspective on the Competitive Interplay between Zinc Deposition and Hydrogen Evolution in Aqueous Zinc Metal Batteries

open access: yesAdvanced Energy Materials, EarlyView.
This perspective highlights recent electroanalytical measurement advances in aqueous zinc metal batteries (AZMBs). We describe tools that decouple competing pathways, such as zinc deposition, faradaic hydrogen evolution reaction (HER), and corrosion HER. We show how these insights can help enable the rational design of next generation AZMBs.
Ashutosh Rana   +7 more
wiley   +1 more source

Co‐Free and Ni‐Minimized Li‐ and Mn‐Rich Layered Cathodes With Suppressed Structural Disordering for High‐Performance and Cost‐Effective LIBs

open access: yesAdvanced Energy Materials, EarlyView.
Co‐free, Ni‐minimized (≤10 mol%) Li1.2Mg0.1Ni0.1Mn0.6O2 utilizes low‐cost Mg2+ to stabilize the lattice and mitigate voltage fading. Oxygen redox is initially suppressed, lowering the first‐cycle capacity, but high‐voltage pre‐activation triggers the latent oxygen redox, fully restoring capacity.
Jinho Ahn   +8 more
wiley   +1 more source

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