Results 141 to 150 of about 169,539 (299)

Electron‐Rich Nickel Enabled by Charge Transfer in Multimetal Nanostructures for Efficient Ammonia‐to‐Hydrogen Conversion

open access: yesAdvanced Science, EarlyView.
A charge‐transfer‐engineered Ni catalyst derived from an atomically mixed layered precursor enables efficient ammonia‐to‐hydrogen conversion. Cr‐to‐Ni electron transfer creates electron‐rich Ni active sites that favor NH3 adsorption, modify the dehydrogenation energetics, and weaken N2 binding to facilitate product desorption. This electronically tuned
Donghyeok Kim   +9 more
wiley   +1 more source

Interfacial Salt Redistribution Enables Rapid Atmospheric Water Harvesting in a Biomimetic Multi‐Layer Hygroscopic Membrane

open access: yesAdvanced Science, EarlyView.
A biomimetic multi‐layer hygroscopic membrane redistributes salt toward an air‐accessible nanofiber interface, enabling rapid interfacial deliquescence while a brush‐like hydrogel promotes efficient liquid transport and storage. By decoupling vapor capture from bulk water storage, the membrane achieves fast sorption kinetics and enables rapid‐cycling ...
Fu‐Yao Zhong   +8 more
wiley   +1 more source

Mechanochemical Engineered Sulfur Copolymers Onto Group 13 and Related Fillers Through Lewis Acid‐Base Pairing

open access: yesAdvanced Science, EarlyView.
Green mechanochemical copolymerization was developed for universal interfacial modification of Group 13 and related fillers. By leveraging Lewis acid–base coordination to anchor sulfur‐containing polymers—validated via multiscale characterization and DFT—this versatile method boosts performance across liquid fuels, thermal‐shielding materials, and ...
Chen Wang   +7 more
wiley   +1 more source

Transforming Gas Separations with Scalable Carbon Molecular Sieve Membranes Enabled by Chemically Tuned Hollow‐Fiber Precursors

open access: yesAdvanced Science, EarlyView.
We established a broadly tunable network‐polymer platform for polyimide‐based precursor membranes, extendable to various diamines. Ultrahigh selectivity with demonstrated aging resistance, and scalability via hollow fiber CMS engineering collectively establishes broad and lasting impact for the membrane science and engineering communities.
Yuhe Cao   +6 more
wiley   +1 more source

Improved Deformability of Co‐Free Medium Entropy Oxides by Controlled Entropy Destabilization

open access: yesAdvanced Science, EarlyView.
Controlled entropy destabilization activates defect‐mediated plasticity in Co‐free (CuMgNiZn)O by promoting pre‐existing Cu‐rich secondary phases that serve as defect sources. Temperature‐dependent dislocation activity evolves from limited motion at room temperature to extensive glide and stacking‐fault formation at 600 °C, enabling improved plasticity
Chang Liu   +10 more
wiley   +1 more source

Microstructure and properties of (rare earth) doped oxide ceramics [PDF]

open access: yes
A study of alumina (AI203 ) and magnesium aluminate spinel (MgAb04) was undertaken with the aim of investigating the changes in properties and microstructural characteristics upon doping with specific rare earth elements.
Perkins, James M.
core  

Intelligent Field‐Adaptive Electrohydrodynamic Printing for Curved Conformal Electronics

open access: yesAdvanced Science, EarlyView.
To mitigate residual‐charge accumulation and spatial electric‐field variations during electrohydrodynamic printing on curved insulating substrates, an intelligent field‐adaptive framework combines alternating‐electric‐field modulation, equivalent electrical gap characterization, and machine‐learning‐guided parameter inversion and pathwise regulation ...
Chang Liu   +14 more
wiley   +1 more source

An Epidermal Sweat Patch for Tracking Metabolite Levels and Correlation Analysis in Biofluids

open access: yesAdvanced Science, EarlyView.
This work presents an epidermal sweat patch for continuous glucose monitoring that validates a strong correlation between sweat, interstitial fluid and blood, enabling a reliable and non‐invasive platform for systemic health management. ABSTRACT Continuous, in situ monitoring of sweat biomarkers offers a promising approach for non‐invasive metabolic ...
Yao Chen   +6 more
wiley   +1 more source

Dielectric Properties of High Alumina Glass

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2017
High   Alumina   Glasses   "Alumina   Silicate   Glasses"   was prepared by utilizing powder technology technique. The starting materials are wasted soda-lime glass from an industrial site, Iraqi­ Duekhla raw kaolin and small amounts of potassium ...
S. B. H. Farid
doaj  

Nonstoichiometric Defect Engineering in Mn2+‐Doped MgGa2O4 Persistent Phosphors Toward Enhanced Luminescence and Multimodal Optical Manometry

open access: yesAdvanced Science, EarlyView.
Mg2+ deficiency transforms Mn2+‐doped MgGa2O4 into a multifunctional persistent phosphor, enhancing green emission, thermal stability, and afterglow effect for optical anti‐counterfeiting. Under compression, spectral shifts enable visual pressure sensing with a sensitivity of 5.01 nm GPa−1 over a pressure range up to 30 GPa.
Peng Du   +6 more
wiley   +1 more source

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