Results 191 to 200 of about 345,040 (275)

Breaking the Durability–Power Trade‐Off: Boron‐Directed Faceted O3 Cathodes for High‐Rate Sodium‐Ion Batteries

open access: yesAdvanced Energy Materials, EarlyView.
Boron‐oxide‐assisted particle engineering stabilizes O3‐type layered cathodes for sodium‐ion batteries by mitigating phase transitions and lattice strain. Acting as flux and structural modifier, boron forms submicron hexagonal platelets with (003) facets and expanded Na‐layer spacing, enabling rapid Na⁺ diffusion and mechanical resilience.
Tengfei Song   +9 more
wiley   +1 more source

Bridging classical and quantum interpretation of chemical state analysis by XPS/HAXPES to resolve short-range order in amorphous alumina films.

open access: yesJ Mater Chem A Mater
Gramatte S   +10 more
europepmc   +1 more source

Enabling ambient stability and quantum integration of organometallic magnonic ferrimagnets via atomic layer encapsulation. [PDF]

open access: yesNat Commun
Utama MIB   +12 more
europepmc   +1 more source

Active Site Determination of Heterogenized Molecular Electrocatalysts

open access: yesAdvanced Energy Materials, EarlyView.
Here, we develop a methodology to examine the active site availability of immobilized transition‐metal molecular complexes via cyclic voltammetry. By using varying loadings of the molecular complex FeTPP physically immobilized onto Vulcan Carbon, we show the influences of FeTPP/VC ratios on the total number of active sites.
Elena Antoniono   +3 more
wiley   +1 more source

Ammonia‐Induced Metal–Organic Framework Membrane Pore Tuning for Hydrogen Separation

open access: yesAngewandte Chemie, EarlyView.
Impurity‐enabled pore tuning is achieved by harnessing trace ammonia, typically regarded as a harmful contaminant, as a reactive agent to modulate the surface structure and flexibility of ZIF‐8 membranes. Ammonia exposure induces partial surface amorphization and local rigidification, shifting the transport mechanism from a flexible to an intrinsic gas‐
Eunji Choi   +9 more
wiley   +2 more sources

Enabling Long Term, Shelf‐Stable Perovskite Solar Cells: Alumina Barriers to Protect Perovskite Devices from Moisture and Oxygen

open access: yesAdvanced Energy Materials, EarlyView.
This study reports a packaging strategy for perovskite photovoltaic devices using atomic layer deposition (ALD) of aluminum oxide. Through optimization of deposition temperature and oxidant chemistry, researchers develop a 50 nm barrier layer with superior water vapor (WVTR) and oxygen transmission rates (OTR).
Melissa A. Davis   +11 more
wiley   +1 more source

Total Synthesis of the Spirocyclic Bis‐Indole Alkaloid (−)‐Owerreine via a [4+2] Annulation

open access: yesAngewandte Chemie, EarlyView.
The total synthesis of the bis‐indole alkaloid (−)‐owerreine has been accomplished by a diastereoselective [4+2] annulation between an enamine and an α,β−unsaturated indolenine precursor to form the 3‐spirocyclic tetrahydropyridine linkage of the natural product. DFT calculations allow an understanding of the mechanism of the key annulation.
Elisa Coll   +4 more
wiley   +2 more sources

Smart Flexible Tactile Sensors: Recent Progress in Device Designs, Intelligent Algorithms, and Multidisciplinary Applications

open access: yesAdvanced Intelligent Discovery, EarlyView.
Flexible tactile sensors have considerable potential for broad application in healthcare monitoring, human–machine interfaces, and bioinspired robotics. This review explores recent progress in device design, performance optimization, and intelligent applications. It highlights how AI algorithms enhance environmental adaptability and perception accuracy
Siyuan Wang   +3 more
wiley   +1 more source

Synthesis of 3:2 mullite ceramics from silica-enriched filter cake waste via diphasic gels method. [PDF]

open access: yesSci Rep
Negash EA   +5 more
europepmc   +1 more source

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