Results 141 to 150 of about 124,456 (313)

Self‐Assembled Hollow Gyroids with Bicontinuous Mesostructures: A Highly Robust Electrocatalyst Fixation Platform

open access: yesAdvanced Materials, EarlyView.
The hollow gyroid carbon (HGC), synthesized via the self‐assembly of block copolymers and vapor pressure‐induced hollow structuring, provides a robust platform for embedding Pt nanoparticles. The HGC morphology facilitates efficient mass transport while the pyridine N inherent in the block copolymer enhances electrical conductivity and electrochemical ...
Gun Ho Lee   +8 more
wiley   +1 more source

Strategies for Controlling Emission Anisotropy in Lead Halide Perovskite Emitters for LED Outcoupling Enhancement

open access: yesAdvanced Materials, EarlyView.
The rise of lead halide perovskite semiconductors has enabled high‐performance LEDs with internal quantum efficiencies approaching 100%. In order to further enhance the external quantum efficiencies limited by light outcoupling effects, in this account, the strategies for reducing energy dissipation through the substrate, waveguide, and evanescent ...
Tommaso Marcato   +2 more
wiley   +1 more source

Conductive Polymer Coatings Control Reaction Selectivity in All‐Iron Redox Flow Batteries

open access: yesAdvanced Materials, EarlyView.
Aqueous redox flow batteries are limited by the competing hydrogen evolution reaction (HER) at their negative electrodes. In this work, conductive polymers are conformally coated on porous carbonaceous electrodes to improve the reaction selectivity of hybrid all‐iron redox flow batteries.
Emre B. Boz   +3 more
wiley   +1 more source

On the Stellar Disk Vertical Scale Height of Edge-on Galaxies from S4G

open access: yesThe Astrophysical Journal
Disk galaxies viewed as thin planar structures resulting from the conservation of angular momentum of an initially rotating pregalactic cloud allow merely a first-order model of galaxy formation, but the presence of vertically extended structures has ...
Notahiana Ranaivoharimina   +4 more
doaj   +1 more source

Spray‐Assisted Fabrication of Cellulose Photonic Pigments on Superhydrophobic Surfaces

open access: yesAdvanced Materials, EarlyView.
A method to directly produce structurally colored microparticles by drying cholesteric cellulose nanocrystal microdroplets on a superhydrophobic surface is reported. This approach has several key advantages that can unlock large‐scale fabrication of sustainable photonic pigments, including exploiting existing industrial techniques (e.g. aerosolization),
Jianing Song   +7 more
wiley   +1 more source

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