Results 141 to 150 of about 3,204,747 (298)

Vacancy‐Driven Ni Exsolution in Prussian Blue Analogues Creates Cooperative Defect–Metal Sites for Alkaline Hydrogen Evolution

open access: yesAdvanced Science, EarlyView.
Multimetal Prussian blue analogues (PBAs) are converted by low‐temperature Ar annealing into a cavity/CN‐vacancy architecture that triggers in situ Ni exsolution, creating dense Ni‐PBA interfacial motifs. These motifs optimize water dissociation and H* adsorption in alkaline media, delivering markedly accelerated HER kinetics and long‐term stability ...
Shiqi Wang   +5 more
wiley   +1 more source

Multi‐Stimuli Responsive Magneto‐Coacervate Droplets for Selective Molecular Enrichment and Programmable Manipulation

open access: yesAdvanced Science, EarlyView.
ABSTRACT Coacervate droplets formed via liquid–liquid phase separation offer unique opportunities as microreactors and delivery vehicles due to their ability to selectively concentrate biomolecules and support biochemical reactions. However, their passive nature severely restricts precise spatial and temporal control, posing barriers to practical ...
Kailang Liu   +6 more
wiley   +1 more source

Biopolymers‐Based Proton Exchange Membranes For Fuel Cell Applications: A Comprehensive Review

open access: yesChemElectroChem
Nafion has been dominating the proton exchange membrane (PEM) market because of its adequacy for the proton exchange operation. However, because of its high cost, low performance at low relative humidity, and finally environmental unfriendliness ...
Souhaib Abouricha   +6 more
doaj   +1 more source

Cobalt oxyphosphide as oxygen reduction electrocatalyst in proton exchange membrane fue cell

open access: yes, 2011
Cobalt oxyphosphide as oxygen reduction electrocatalyst in proton exchange membrane fue ...
马援蔚   +3 more
core  

Bipolar Palladium Membrane Enabling Crossover‐Free Selective Proton Transport

open access: yesAdvanced Science, EarlyView.
This study introduces a crossover‐free bipolar palladium membrane that transports protons selectively via reversible Pd/PdHx absorption–desorption and lattice hydrogen diffusion, overcoming the conductivity–selectivity trade‐off of polymer membranes. It enables water‐fed Li‐mediated ammonia synthesis, achieving 51% Faradaic efficiency and stable 12 h ...
Jiyeon Baek   +11 more
wiley   +1 more source

Proton-Blocking Anion-Exchange Membranes for Efficient Lithium Hydroxide Recovery by Bipolar Membrane Electrodialysis

open access: yes
In bipolar membrane electrodialysis (BPED), proton transport through the anion-exchange membrane (AEM) is a major factor that reduces overall process efficiency.
Moon-Sung Kang   +3 more
core   +1 more source

Oral Prebiotic Polysaccharide Hydrogels Sustaining Colon Antibody Release Alleviate Inflammatory Bowel Disease

open access: yesAdvanced Science, EarlyView.
An orally administered prebiotic polysaccharide hydrogel (predaGel) based on inulin and alginate‐dopamine is stable in the stomach, adheres to the intestine, and degrades slowly in the colon. It enables site‐specific delivery of anti‐TNF‐α and anti‐IL‐12/23 antibodies, scavenges reactive oxygen species, and remodels gut microbiota, offering effective ...
Xinyi Dong   +4 more
wiley   +1 more source

A facile synthesis of Pd C cathode electrocatalyst for proton exchange membrane fuel cells

open access: yes, 2011
A facile synthesis of Pd/C cathode electrocatalyst for proton exchange membrane fuel ...
马援蔚   +3 more
core  

Overcoming the Catalytic Bucket Effect in Pt‐based High‐Entropy Nanocages Through Interface Defect and Strain Engineering

open access: yesAdvanced Science, EarlyView.
PtPdNiCuMnAu HENCs exhibit a remarkable half‐wave potential (E1/2) of 0.925 V vs. RHE. The catalyst displays exceptional electrochemical stability, with only a 4 mV negative shift in E1/2 and a mere 5.6% loss in MA after 10, 000 accelerated durability test cycles.
Qian Liu   +5 more
wiley   +1 more source

Particle size effect of Pt/C catalyst for oxygen reduction in proton exchange membrane fuel cells

open access: yes, 2012
Particle size effect of Pt C catalyst for oxygen reduction in proton exchange membrane fuel ...
苏党生, 钟和香, 许壮, 张华民
core  

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