Results 191 to 200 of about 5,367,169 (314)

Longitudinally engineered metasurfaces for 3D vectorial holography. [PDF]

open access: yesLight Sci Appl
Tan L   +9 more
europepmc   +1 more source

Phase‐Stable Palladium Hydride Derived from PdCoO2 for Sustainable Hydrogen Evolution Reaction

open access: yesAdvanced Functional Materials, EarlyView.
The exceptionally active β‐PdHx is demonstrated for the hydrogen evolution reaction in acidic media. The fast activation kinetics from the PdCoO2 template are resolved by operando spectroscopy, and isotope‐labeled atom probe tomography quantifies the H content in β‐PdHx. The outstanding stability of the electrocatalyst is attributed to the retention of
Luca Camuti   +10 more
wiley   +1 more source

A Review of Solid-State LiDAR Principles and Metasurface-Based LiDAR Sensors. [PDF]

open access: yesSensors (Basel)
Demirbas E   +6 more
europepmc   +1 more source

Amplification of light in a plasma by stimulated ion acoustic waves driven by multiple crossing pump beams

open access: green, 2011
R. K. Kirkwood   +9 more
openalex   +2 more sources

Using In Situ TEM to Understand the Surfaces of Electrocatalysts at Reaction Conditions: Single‐Atoms to Nanoparticles

open access: yesAdvanced Functional Materials, EarlyView.
This review summarizes recent advances in closed‐cell in situ TEM strategies for accurate determination of the activity and stability of single‐atom catalyst systems during operation. Operando conditions causing dynamic changes of SAC systems are highlighted and we explain why ensemble average‐based optical techniques may benefit from the technological
Martin Ek   +4 more
wiley   +1 more source

Deterministic entanglement-assisted quantum communication over 20 km fiber channel. [PDF]

open access: yesLight Sci Appl
Ren S   +7 more
europepmc   +1 more source

Curved Nanographene–Graphite Hybrid Anodes with Sequential Li+ Insertion for Fast‐Charging and Long‐Life Li‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A hybrid anode composed of Cl‐functionalized curved nanographene and graphite enables ultra‐fast charging and long cycle life through an engineered morphology and sequential Li+ insertion. It delivers 100 mAh g−1 at 5 C with 70% capacity retention after 1000 cycles and maintains stable performance over 2000 cycles in pouch cells, providing a practical ...
Hyunji Cha   +8 more
wiley   +1 more source

Proof of principle for a light dark matter search with low-energy positron beams at NA64 [PDF]

open access: green
Yuri Andreev   +56 more
openalex   +1 more source

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