Results 171 to 180 of about 15,333 (266)

Stabilization of Cu Species in UiO‐66 Metal–Organic Framework for CO2‐to‐Methanol: Insights From Operando X‐ray and Electron Microscopy Studies

open access: yesSmall, EarlyView.
This study reveals how a zirconium‐based metal–organic framework (UiO‐66) stabilizes copper species during CO2 hydrogenation to methanol. Operando X‐ray spectroscopy, electron microscopy, and theory show that zinc promotes highly dispersed copper and suppresses particle growth, while the framework dynamically responds to reaction intermediates.
Anna Liutkova   +11 more
wiley   +1 more source

Enhanced Actuation Stability of Liquid Crystal Elastomer Actuators With Diels–Alder Dynamic Bonds

open access: yesSmall, EarlyView.
By leveraging furan substitution, enhanced thermal stability during actuation of liquid crystal elastomers (LCEs) with Diels–Alder dynamic (DA) bonds was achieved. This work demonstrates that 3‐substituted furan broadens the actuation window of LCEs with DA bonds and enables superior thermomechanical stability and cycling performance at elevated ...
Konstantinos Stamatis   +8 more
wiley   +1 more source

TRIXS: a multilayer grating solution towards highly efficient resonant inelastic tender X-ray scattering. [PDF]

open access: yesLight Sci Appl
Zhou KJ   +15 more
europepmc   +1 more source

Electrically Switchable Diffraction Grating Based on Electrophoretic Redistribution of Carbon Black Nanoparticles

open access: yesSmall, EarlyView.
Electrically reconfigurable diffraction gratings based on electrophoretic carbon black (CB) nanoparticles are demonstrated. Voltage‐driven particle redistribution forms periodic absorbing patterns with switchable wide‐ and narrow‐slit diffraction modes. The proposed diffractor exhibits negligible polarization dependence, wide‐temperature operation from
Young Jin Lim   +6 more
wiley   +1 more source

Cu+‐Driven Formate Selectivity in Oxidation‐State‐Dependent CO2 Reduction on Cu2O|Graphene

open access: yesSmall, EarlyView.
A Cu2O|graphene heterostructure enables interfacial electronic self‐regulation that stabilizes catalytically active Cu+ species under cathodic CO2 reduction conditions. Suppressed over‐reduction preserves structural integrity and promotes *OCHO pathway, resulting in durable and highly selective electrochemical conversion of CO2 to formate.
Sakthivel Perumal   +9 more
wiley   +1 more source

Defocused illumination with beam-shaping condenser for uniform wide-field X-ray imaging. [PDF]

open access: yesJ Synchrotron Radiat
Zhang K   +12 more
europepmc   +1 more source

Concurrent tunable structural color, luminescence, and afterglow in single ZnS: X@SiO2 spheres via SiO2‐nanoarmor and calcination decoupling collaborative strategy

open access: yesSmart Molecules, EarlyView.
For the first time, tunable structural color, luminescence, and afterglow are integrated into single ZnS:X@SiO2 spheres via a SiO2‐nanoarmor and calcination decoupling strategy, achieving 250–410 nm monodisperse wurtzite spheres with 91% phase conversion, 12.8% PLQY, and 12.27 s afterglow. Abstract The integration of structural color, photoluminescence,
Tianyi Liu   +3 more
wiley   +1 more source

Compact Spectral Encoding Microscopy by Terrace Grating Optics. [PDF]

open access: yesACS Photonics
Cohen OR   +8 more
europepmc   +1 more source

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