Results 201 to 210 of about 309,670 (287)

Two-dimensional pixel-level addressable mid-infrared metasurface spatial light modulator. [PDF]

open access: yesNat Commun
Popescu CC   +14 more
europepmc   +1 more source

Lignocellulosic Triboelectric Materials for Energy Harvesting and Emerging Applications: A Review on Lignin‐Molecular Engineering toward Improved Performance

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Contrasting sustainable biomass with depleting petroleum resources, this review charts the evolutionary timeline of lignin‐based TENGs. We systematically evaluate their fundamental mechanisms, enhancement strategies, and applications in green self‐powered electronics.
Yuxin Yang   +9 more
wiley   +1 more source

Adaptive radiofrequency shimming in MRI using reconfigurable dielectric materials. [PDF]

open access: yesSci Rep
Šiurytė P   +6 more
europepmc   +1 more source

Smart Functional Hydrogels: Emerging Platforms for Thermal and Electrochemical Energy Harvesting and Conversion Systems

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The hydrogel exhibits versatile functions, including efficient thermogalvanic conversion under a temperature difference, and acting as a cooling layer/forming a thermally conductive nanoactive composite for thermovoltaic conversion. Additionally, its self‐healing and self‐powered flexibility play a key role in energy storage systems. The growing demand 
Eunah Kang
wiley   +1 more source

Recent Progress of Metal Halide Perovskite‐Based S‐Scheme Heterojunction for Solar Energy Conversion

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Recent advances in metal halide perovskite‐based S‐scheme photocatalytic heterojunctions are systematically reviewed in this work. Synthetic protocols, state‐of‐the‐art characterizations for tracking interfacial charge transfer, and their diverse photocatalytic applications are thoroughly explored.
Xinhe Wu   +4 more
wiley   +1 more source

Stable, Reusable Copper‐Bispidine Catalysts on Agarose With Diffusion‐Limited Turnover: When Immobilization is not Covalent

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
Epoxy‐activated agarose beads as support for copper(II)‐bispidine complexes provide reusable heterogeneous catalysts for styrene aziridination with negligible copper leaching. Immobilization occurs largely through noncovalent interactions. Catalyst loading strongly governs performance by balancing active‐site density, accessibility, and mass transport.
Nadjana Schneider   +7 more
wiley   +1 more source

Programmable calculus operations in electromagnetic space using space-time-coding metasurface. [PDF]

open access: yesNatl Sci Rev
Shi HT   +9 more
europepmc   +1 more source

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