Results 251 to 260 of about 233,100 (328)

Electrochemical Modulation of Hole Extraction in NiO/Perovskite Bilayers

open access: yesAdvanced Materials Interfaces, EarlyView.
The influence of hole depletion/accumulation on the hole extraction is evaluated in NiO/perovskite bilayers by transient spectroelectrochemical measurements. Metal‐halide perovskite thin films with different valence band positions are prepared, and the influence of band offset on the hole extraction kinetics is studied.
Xiangtian Chen   +7 more
wiley   +1 more source

Crystallization Dynamics of Hybrid Perovskite Mediated by a Biopolymer: From Precursor Solution to Thin Film

open access: yesAdvanced Materials Interfaces, EarlyView.
In order to better understand the complex crystallization dynamics of starch‐assisted metal halide perovskites (MHPs), the properties of colloidal precursor suspensions and the thermodynamic evolution of the crystallization reaction are investigated by a comprehensive set of characterization techniques, from solutions to films.
Antonella Giuri   +11 more
wiley   +1 more source

Spectroelectrochemical Analysis of Oxygen Evolution by Nickel Hydroxide: Role of Oxygen Vacancies, Charge Transfer, and Silk Fibroin

open access: yesAdvanced Materials Interfaces, EarlyView.
Silk fibroin enhances the oxygen evolution reaction (OER) on Ni(OH)₂ catalysts by stabilizing oxygen vacancies and promoting charge transfer. Operando spectroelectrochemical analyses reveal a Mars–van Krevelen‐type mechanism involving lattice oxygen and superoxide intermediates.
Eduardo R. do Nascimento   +3 more
wiley   +1 more source

An Atomic‐Scale View at γ’‐Fe4N as Hydrogen Barrier Material

open access: yesAdvanced Materials Interfaces, EarlyView.
This study demonstrates the efficacy of γ’‐Fe4N nitride layers, formed via gas nitriding, as hydrogen permeation barriers. Advanced characterization, hydrogen permeation analysis, and DFT calculations reveal a 20 fold reduction in hydrogen diffusion at room temperature.
Aleksander Albrecht   +11 more
wiley   +1 more source

Adsorption Kinetics Model of Hydrogen on Graphite. [PDF]

open access: yesEntropy (Basel)
Simon JM, Carneiro Queiroz da Silva G.
europepmc   +1 more source

Direct Seawater Electrolysis with Stabilized High‐Performance NiCr Anodes

open access: yesAdvanced Materials Interfaces, EarlyView.
An assembly combining a highly active NiFe layered double hydroxyde electrocatalyst and a NiCr foam anode shows high corrosion resistance during alkaline seawater electrolysis (ASE), minimal Cr leaching in the electrolyte, and long‐term efficiency. An electrolyzer comprising the so‐prepared anode and a cathode derivatized with NiMoO4 achieves overall ...
Hiba Saada   +5 more
wiley   +1 more source

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