Recent Progress in Oxygen Reduction Reaction Toward Hydrogen Peroxide Electrosynthesis and Cooperative Coupling of Anodic Reactions

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 13, 2025

Abstract Electrosynthesis of hydrogen peroxide (H 2 O ) via two‐electron oxygen reduction reaction (2e − ORR) is a promising alternative to the anthraquinone oxidation process. To improve overall energy efficiency and economic viability this catalytic process, one pathway develop advanced catalysts decrease overpotential at cathode, other couple 2e ORR with certain anodic reactions full cell voltage while producing valuable chemicals on both electrodes. The performance catalyst depends not only material itself but also environmental factors. Developing electrocatalysts high selectivity activity prerequisite for efficient H electrosynthesis, coupling appropriate would further enhance efficiency. Considering this, here comprehensive review presented latest progress state‐of‐the‐art in different media, microenvironmental modulation mechanisms beyond design, as well electrocatalytic system various reactions. This presents new insights regarding existing challenges opportunities within rapidly advancing field, along viewpoints future development electrosynthesis construction green roadmaps.

Язык: Английский

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Hydrogen Peroxide Electrosynthesis via Selective Oxygen Reduction Reactions Through Interfacial Reaction Microenvironment Engineering

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 28, 2024

Abstract The electrochemical two‐electron oxygen reduction reaction (2e − ORR) offers a compelling alternative for decentralized and on‐site H 2 O production compared to the conventional anthraquinone process. To advance this electrosynthesis system, there is growing interest in optimizing interfacial microenvironment boost electrocatalytic performance. This review consolidates recent advancements engineering selective conversion of . Starting with fundamental insights into mechanisms, an overview various strategies constructing favorable local environment, including adjusting electrode wettability, enhancing mesoscale mass transfer, elevating pH, incorporating electrolyte additives, employing pulsed electrocatalysis techniques provided. Alongside these regulation strategies, corresponding analyses technical remarks are also presented. Finally, summary outlook on critical challenges, suggesting future research directions inspire accelerate practical application delivered.

Язык: Английский

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Electrolyte: The cornerstone of commercializing the electrosynthesis of H2O2

Chem, Год журнала: 2025, Номер unknown, С. 102536 - 102536

Опубликована: Март 1, 2025

Язык: Английский

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Adjusting the active site of single Co atoms on CeO2 via cyano functional groups for selective H2O2 electrosynthesis at high yield

Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер 374, С. 125398 - 125398

Опубликована: Апрель 21, 2025

Язык: Английский

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Unique electronic regulation in bimetallic MOF for efficient electrochemical synthesis of H2O2 at 500 mA cm-2

Nano Energy, Год журнала: 2025, Номер unknown, С. 111096 - 111096

Опубликована: Май 1, 2025

Язык: Английский

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Electro-Assisted Cyclohexene Selective Oxidation to Cyclohexanediol under Ambient Conditions

ACS Catalysis, Год журнала: 2025, Номер unknown, С. 8530 - 8539

Опубликована: Май 6, 2025

Язык: Английский

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Membrane electrode assembly for hydrogen peroxide electrosynthesis

Опубликована: Май 27, 2025

Язык: Английский

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Charge transfer regulation of nickel oxide-nickel selenide hexagonal nanosheets with rich oxygen vacancies for efficient hydrogen peroxide electrosynthesis

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 698, С. 138040 - 138040

Опубликована: Май 31, 2025

Язык: Английский

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Harnessing Electrolyte Chemistry to Advance Oxygen Reduction Catalysis for Fuel Cells and Electrosynthesis

ACS Catalysis, Год журнала: 2024, Номер 14(22), С. 16963 - 16985

Опубликована: Ноя. 2, 2024

Oxygen reduction reaction (ORR) is ubiquitous in many important energy conversion technologies, encompassing fuel cells, metal-air batteries, and H2O2 electrosynthesis. However, its inherently sluggish kinetics often leads to substantial overpotentials losses efficiency, thus prompting extensive efforts into catalyst optimization. In the past few years, growing research has underscored pivotal role of electrolyte-associated factors affecting ORR performance. this review, we focus on intricate interplay between electrolyte properties, pH, cations, anions, additives, their impacts electrocatalysis, particularly for platinum (and alloys) nonprecious metal–nitrogen–carbon catalysts. We examine how these electrolyte-mediated alterations affect electrode surface, reactive species, microenvironment, thereby modulating adsorption energetics intermediates, stability mass transport, ultimately overall process. highlight need dynamic models advanced probing technologies at electrocatalytic interfaces, advocate adopting a holistic approach that synchronizes effects electrolytes catalysts optimizing electrocatalysis. This review lays foundation refining descriptive formulations which potentially guides development enhanced cathodes practical applications.

Язык: Английский

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Electrochemical Insights into Hydrogen Peroxide Generation on Carbon Electrodes: Influence of Defects, Oxygen Functional Groups, and Alkali Metals in the Electrolyte

ACS Catalysis, Год журнала: 2024, Номер unknown, С. 17675 - 17689

Опубликована: Ноя. 15, 2024

Hydrogen peroxide (H2O2) is an environmentally friendly oxidant, with production reaching 5.7 million tons by 2028 and a market size of USD 4.04 billion 2029. Understanding the mechanism oxygen reduction to H2O2 structure–activity relations on carbon materials is, therefore, high significance for more synthesis this important chemical. We have used oriented pyrolytic graphite (PG-edge PG-basal) glassy (GC) as model electrodes investigate influence defects, oxygen-containing functional groups, presence alkali metals activity selectivity toward under acidic conditions. Electrochemical measurements, such rotating ring disk electrode electrochemical impedance spectroscopy, well in situ Raman spectroelectrochemistry indicated that PG-basal GC preferentially form product through two-electron pathway via inner outer sphere mechanisms, respectively. The significantly affected potential maximal entropy, which determines position species solution within or Helmholtz plane. cations (Li+, Na+, K+, Cs+) reaction these was investigated. Large cations, e.g., K+ Cs+, showed intermediates thus electrodes' selectivity. present study provides insights contributions fundamental aspects hydrogen conditions further advancements development metal-free carbon-based catalysts.

Язык: Английский

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