Results 251 to 260 of about 792,425 (354)

Three‐Step Pulse Strategy Enhances Ultradilute Nitrate‐to‐Ammonia Conversion via Microenvironment and Mass Transfer Control

open access: yesAdvanced Science, EarlyView.
Electrochemical treatment of low‐concentration nitrate in wastewater is challenging. This study introduces a three‐step pulsed method that achieves near‐perfect efficiency in converting ultradilute nitrate to ammonia. Combined experiments and simulations reveal how pulsed strategy boost kinetics while suppressing competing reactions.
Kouer Zhang   +7 more
wiley   +1 more source

Achieving Anti‐Disproportionation Performance Enhancement and Distorted Inverse‐Disproportionation Reaction Correction of Zr2Fe‐Based Hydrogen Isotope Storage Alloys via Element Substitution

open access: yesAdvanced Science, EarlyView.
Undesirable phase transition behavior and anti‐disproportionation performance limit the hydrogen isotope storage of Zr2Fe alloy. With theoretical screening and experiments, partial Cu/Ni substitutions achieve full reversibility and significantly improve anti‐disproportionation properties.
Zhiyi Yang   +12 more
wiley   +1 more source

Advancing Nitrate‐to‐Ammonia Electrocatalysis: Strategies in Catalyst Design, Electrolyte Engineering, and Performance Evaluation

open access: yesAdvanced Science, EarlyView.
This review highlights the latest advances in electrocatalytic nitrate reduction to ammonia, with a focus on catalyst design strategies, electrolyte engineering, and performance evaluation. Abstract The electrochemical reduction of nitrate for ammonia production not only offers a promising alternative to the traditional Haber–Bosch process, which ...
Juan Bai   +8 more
wiley   +1 more source

Advances in Stabilizing Spinel Cobalt Oxide‐Based Catalysts for Acidic Oxygen Evolution Reaction

open access: yesAdvanced Science, EarlyView.
This review systematically summarizes recent advances in enhancing the stability of spinel Co3O4‐based catalysts for the oxygen evolution reaction (OER) in acidic electrolytes. It discusses rational design strategies for obtaining durable Co3O4‐based OER catalysts, which can be applied in sustainable energy conversion and storage technologies ...
Chengli Rong   +6 more
wiley   +1 more source

Dual‐Ligand Strategy in Rh‐Catalyzed Sequential Hydrofunctionalization of Valylene

open access: yesAdvanced Science, EarlyView.
A remarkable dual‐ligand strategy is employed in Rh‐catalyzed sequential coupling reaction of dinucleophiles and 1,3‐enynes with high regio‐ and chemo‐selectivity. Abstract Controlling regio‐ and chemo‐selectivity in transition‐metal‐catalyzed reactions involving coupling reagents with multiple reactive sites remains a significant challenge.
Yong‐Kang Mei   +4 more
wiley   +1 more source

Diffusion Characteristics of Ru and Oxygen Vacancies in Ta2O5 for Resistive Random Access Memory Devices: A Density Functional Theory Investigation

open access: yesAdvanced Electronic Materials, EarlyView.
Atomistic analysis of ruthenium (Ru) and oxygen vacancy (OV) diffusion in Ta₂O₅‐based memristors is performed. DFT calculations demonstrate interstitial Ru in Ta₂O₅ has lower diffusion barriers and formation energies than OVs, enhancing mobility and stability.
Md. Sherajul Islam   +3 more
wiley   +1 more source

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