Results 271 to 280 of about 915,487 (347)

MoO2‐Mediated Ni─Fe Bond Contraction and Electronic Modulation in Ni3Fe Alloy for Efficient Water Electrolysis at High‐Current‐Densities

open access: yesAdvanced Materials, EarlyView.
MoO2 effectively modulates the electronic structure of Ni3Fe and optimizes the Ni─Fe bonding configuration, thereby enabling dual regulation of the Volmer‐Heyrovsky steps and the evolution pathways of reaction intermediates during the water electrolysis process, which collectively accelerates both the hydrogen evolution reaction and oxygen evolution ...
Liancen Li   +9 more
wiley   +1 more source

Tuning the Surface State and Zeta Potential of Aged CuO Nanoparticles by Additive‐Free Surface Treatments as Guided by XPS

open access: yesAdvanced Materials, EarlyView.
Aging of CuO nanoparticles (NP) involves a surface reconstruction induced by hydroxylation and concurrent organic‐O adsorption, which introduces O defects in the NP subsurface region. The defective surface results in a diffuse surface space region, as reflected by a low ζ‐potential of the aged NPs in ethanol solvent.
Anastasia S. Batenkova   +3 more
wiley   +1 more source

The Origins & Reservoirs of Exocomets. [PDF]

open access: yesSpace Sci Rev
Bannister M   +13 more
europepmc   +1 more source

Revealing the Neglected Role of Passivation Layers of Current Collectors for Solid‐State Anode‐Free Batteries

open access: yesAdvanced Materials, EarlyView.
An in situ X‐ray absorption spectroscopy experiment revealed that the surface passivation layers on copper and stainless steel interact with the sulfide‐based solid‐state electrolyte upon contact, leading to the formation of various interfacial species.
Yijia Wang   +9 more
wiley   +1 more source

Heterogenized Copper(II) Phenanthroline Catalysts for Electroreduction of CO2 to C2 Compounds: Substitution on the Ligand Causes Structural Changes to the Molecular Framework and Stability Enhancement

open access: yesAdvanced Materials, EarlyView.
Based on a previously reported binuclear Cu(II) phenanthroline catalyst, a structurally modified version with enhanced stability for electrochemical reduction of CO2 is developed. The second‐generation system allows for stable operation in an MEA electrolyzer with a Faradaic efficiency of >70% for C2 products at elevated current densities.
Na Liu   +12 more
wiley   +1 more source

Bearing fault diagnosis based on Kepler algorithm and attention mechanism. [PDF]

open access: yesPLoS One
Guang YJ   +5 more
europepmc   +1 more source

Nanoconfined Cu─O─Mo Asymmetric Sites Enable Ambient Spontaneous O2‐to‐1O2 Conversion for Sustainable Water Purification

open access: yesAdvanced Materials, EarlyView.
An asymmetric Cu+─O─Mo6+ dual‐site in a nanoconfined membrane turns O2 into singlet oxygen at ambient conditions with ≈95% selectivity, bypassing superoxide. It concentrates reactants for rapid pollutant removal, operates stably in continuous flow with ultra‐low metal leaching and cost, efficiently purifying complex waters.
Jian Ye   +8 more
wiley   +1 more source

Tuning Active Hydrogen on Reconstructed RuO2/Co(OH)2 Catalysts for Selective Ammonia Synthesis

open access: yesAdvanced Materials, EarlyView.
A combined approach of precatalyst design and electrolyte engineering is employed to develop highly active, selective, and stable catalysts for electrochemical nitrate reduction. In alkaline media, the reconstructed RuO2/Co(OH)2 catalyst demonstrates impressive performance in ammonia synthesis, rechargeable Zn‐NO3− battery, and the remediation of ...
Anquan Zhu   +12 more
wiley   +1 more source

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