Electrochemically treated AlCoCrFeNi high entropy alloy as a self-supporting electrode for overall water splitting

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 72, С. 209 - 219

Опубликована: Май 29, 2024

Язык: Английский

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Advancements in transition bimetal catalysts for electrochemical 5-Hydroxymethylfurfural (HMF) oxidation

Journal of Energy Chemistry, Год журнала: 2024, Номер 98, С. 24 - 46

Опубликована: Июнь 24, 2024

Язык: Английский

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In Situ Amorphization of Electrocatalysts

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Июнь 26, 2024

Abstract Electrocatalysis represents an efficient and eco‐friendly approach to energy conversion, enabling the sustainable synthesis of valuable chemicals fuels. The deliberate engineering electrocatalysts is crucial improving efficacy scalability electrocatalysis. Notably, occurrence in situ amorphization within has been observed during various electrochemical processes, influencing conversion efficiency catalytic mechanism understanding. Of note, dynamic transformation catalysts into amorphous structures complex, often leading configurations. Therefore, revealing this process understanding function species are pivotal for elucidating structure‐activity relationship electrocatalysts, which will direct creation highly catalysts. This review examines mechanisms behind structure formation, summarizes characterization methods detecting species, discusses strategies controlling (pre)catalyst properties conditions that influence amorphization. It also emphasizes importance spontaneously formed oxidation reduction reactions. Finally, it addresses challenges electrocatalysts. aiming guide efficient, selective, stable reactions, inspire future advancements field.

Язык: Английский

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Efficient electrochemical hydrogen evolution activity of nanostructured Ag3PO4/MoS2 heterogeneous composite catalyst

Chemosphere, Год журнала: 2024, Номер 351, С. 141220 - 141220

Опубликована: Янв. 20, 2024

Язык: Английский

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Advances in the mechanism investigation for the oxygen evolution reaction: fundamental theory and monitoring techniques

Materials Chemistry Frontiers, Год журнала: 2023, Номер 8(3), С. 603 - 626

Опубликована: Окт. 30, 2023

Fundamental theory and monitoring techniques of the OER mechanism: a review.

Язык: Английский

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How reliable are the overpotentials reported in energy conversion electrocatalysis?

Catalysis Science & Technology, Год журнала: 2024, Номер 14(8), С. 2025 - 2039

Опубликована: Янв. 1, 2024

This perspective highlights important issues with the currently followed practice of converting potentials in electrochemistry to reversible hydrogen electrode (RHE) scale and advises on best practices be when doing so.

Язык: Английский

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An advanced Ru-based alkaline HER electrocatalyst benefiting from Volmer-step promoting 5d and 3d co-catalysts

Dalton Transactions, Год журнала: 2024, Номер 53(17), С. 7596 - 7604

Опубликована: Янв. 1, 2024

This work brings out a three-way strategy of building self-supported highly active yet stable electrocatalyst based on Ni, W, and Ru-based trimetallic systems for alkaline HER.

Язык: Английский

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CuNi sulphidation maximizes MOR activity by expanding the accessibility of active sites!

Chemical Communications, Год журнала: 2024, Номер 60(33), С. 4435 - 4438

Опубликована: Янв. 1, 2024

Sulphidation through hydrothermal treatment increases ECASs for Cu and Ni by an order of magnitude the performance MOR selectively HCOOH formation.

Язык: Английский

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Repurposed Cu Scrap Featuring CuO/Cu(OH)₂ Nanostructures as a High-Performance Anode for OER-Masking Small Molecule Electrooxidation

ACS Sustainable Chemistry & Engineering, Год журнала: 2025, Номер unknown

Опубликована: Май 20, 2025

Язык: Английский

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Interface Size-Dependent Changes in Activity of Water Splitting Electrocatalysts

Langmuir, Год журнала: 2025, Номер unknown

Опубликована: Май 27, 2025

The traditional method of reporting electrocatalytic activity by normalizing current to the geometric area (mA cm-2) often results in exaggerated for electrodes smaller than 1 cm2. Using stainless steel 304 (SS-304) and Ni foam varying sizes (0.3-2.1 cm2), along with two modified faster kinetics (NiFe LDH OER 1.0 M KOH Pt/C HER 0.5 H2SO4), we investigated oxygen hydrogen evolution reactions. Our reveal a 2-3-fold exaggeration cm2, primarily due double layers, lower iR drop, high edge-to-size ratio, leading stronger edge effects. These findings suggest that cm2 may not be ideal accurately depicting is always almost represented densities (in mA cm-2), as normalization leads misleading overstatements performance. In contrast, still useful studies where specific accurate sensing certain analytes (often masked large drop mass-transport limitations) are necessary (e.g., electrochemical various analytes), they offer advantages like less affected limitations.

Язык: Английский

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