Versatile Photoelectrocatalysis Strategy Raising Up the Green Production of Hydrogen Peroxide

Advanced Energy Materials, Год журнала: 2023, Номер 13(14)

Опубликована: Март 1, 2023

Abstract H 2 O plays an irreplaceable role in many aspects of human society, such as paper bleaching, medical disinfection, wastewater treatment, organic synthesis, hydrometallurgy and the electronic industry. However, unsustainability current industrial production process traditional anthraquinone has a serious conflict with green sustainable development. The photo/electrocatalytic from renewable energy advantages being more economical, low‐carbon green, line requirements economy. These catalytic methods have played demonstrative development small molecules, contributing to fundamental understanding general catalysis providing scientific perspective for future new cycles. In this review, authors aim integrate reaction mechanism photocatalytic electrocatalytic production, summarize application recent years, assess modern technologies promoted research, including flux equipment coproduction, etc. This review intends provide clear logic profile directions calls researchers insights into field.

Язык: Английский

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CoIn dual-atom catalyst for hydrogen peroxide production via oxygen reduction reaction in acid

Nature Communications, Год журнала: 2023, Номер 14(1)

Опубликована: Авг. 8, 2023

The two-electron oxygen reduction reaction in acid is highly attractive to produce H2O2, a commodity chemical vital various industry and household scenarios, which still hindered by the sluggish kinetics. Herein, both density function theory calculation in-situ characterization demonstrate that dual-atom CoIn catalyst, O-affinitive In atom triggers favorable stable adsorption of hydroxyl, effectively optimizes OOH on neighboring Co. As result, Co atoms shifts pathway for efficient H2O2 production acid. partial current reaches 1.92 mA cm-2 at 0.65 V rotating ring-disk electrode test, while rate as high 9.68 mol g-1 h-1 three-phase flow cell. Additionally, CoIn-N-C presents excellent stability during long-term operation, verifying practicability catalyst. This work provides inspiring insights into rational design active catalysts other catalytic systems.

Язык: Английский

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Custom‐Design of Strong Electron/Proton Extractor on COFs for Efficient Photocatalytic H₂O₂ Production

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(15)

Опубликована: Фев. 14, 2024

The development of photocatalysts with continuous electron extraction and rapid proton transfer could kinetically accelerate the artificial photosynthesis, but remains a challenge. Herein, we report topology-guided synthesis high-crystalline triazine covalent organic framework (COF) decorated by uniformly distributed polar oxygen functional groups (sulfonic group or carboxyl) as strong electron/proton extractor for efficient photocatalytic H

Язык: Английский

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Enhancing H₂O₂ Electrosynthesis at Industrial-Relevant Current in Acidic Media on Diatomic Cobalt Sites

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(13), С. 9434 - 9443

Опубликована: Март 20, 2024

Electrocatalytic synthesis of hydrogen peroxide (H2O2) in acidic media is an efficient and eco-friendly approach to produce inherently stable H2O2, but limited by the lack selective catalysts under industrial-relevant current densities. Herein, we report a diatomic cobalt catalyst for two-electron oxygen reduction efficiently H2O2 at 50–400 mA cm–2 acid. Electrode kinetics study shows >95% selectivity on sites. In flow cell device, record-high production rate 11.72 mol gcat–1 h–1 exceptional long-term stability (100 h) are realized high situ spectroscopic studies theoretical calculations reveal that introducing second metal into coordination sphere site can optimize binding strength key intermediates due downshifted d-band center cobalt. We also demonstrate feasibility processing municipal plastic wastes through decentralized production.

Язык: Английский

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Recent Advances of Electrocatalyst and Cell Design for Hydrogen Peroxide Production

Nano-Micro Letters, Год журнала: 2023, Номер 15(1)

Опубликована: Апрель 7, 2023

Abstract Electrochemical synthesis of H 2 O via a selective two-electron oxygen reduction reaction has emerged as an attractive alternative to the current energy-consuming anthraquinone process. Herein, progress on electrocatalysts for generation, including noble metal, transition metal-based, and carbon-based materials, is summarized. At first, design strategies employed obtain with high electroactivity selectivity are highlighted. Then, critical roles geometry electrodes type reactor in striking balance boost rate systematically discussed. After that, potential strategy combine complementary properties catalysts optimal overall yield illustrated. Finally, remaining challenges promising opportunities high-efficient electrochemical production highlighted future studies.

Язык: Английский

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An anti-electrowetting carbon film electrode with self-sustained aeration for industrial H₂O₂ electrosynthesis

Energy & Environmental Science, Год журнала: 2023, Номер 17(2), С. 655 - 667

Опубликована: Ноя. 28, 2023

A novel concept of an anti-electrowetting carbon film electrode with self-sustained aeration was devised and demonstrated to develop next-generation cheap scalable metal-free electrodes for industry-scale H 2 O electrosynthesis.

Язык: Английский

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Advancing H₂O₂ electrosynthesis: enhancing electrochemical systems, unveiling emerging applications, and seizing opportunities

Chemical Society Reviews, Год журнала: 2024, Номер 53(16), С. 8137 - 8181

Опубликована: Янв. 1, 2024

Hydrogen peroxide (H

Язык: Английский

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Single-zinc vacancy unlocks high-rate H2O2 electrosynthesis from mixed dioxygen beyond Le Chatelier principle

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Май 16, 2024

Le Chatelier's principle is a basic rule in textbook defining the correlations of reaction activities and specific system parameters (like concentrations), serving as guideline for regulating chemical/catalytic systems. Here we report model breaking this constraint O

Язык: Английский

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Optimization and scaling-up of porous solid electrolyte electrochemical reactors for hydrogen peroxide electrosynthesis

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Апрель 4, 2025

Язык: Английский

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Metal-Compound-Based Electrocatalysts for Hydrogen Peroxide Electrosynthesis and the Electro-Fenton Process

ACS Energy Letters, Год журнала: 2022, Номер 8(1), С. 196 - 212

Опубликована: Ноя. 23, 2022

Hydrogen peroxide (H2O2) is a powerful oxidant with many applications, but its chemical production unsustainable and unsafe. Decentralized electrosynthesis of H2O2 via the selective two-electron oxygen reduction reaction (2e– ORR) attractive, which demands active, selective, stable, cost-effective electrocatalysts in acidic neutral solutions where stable. Metal compounds are an emerging class 2e– ORR catalysts diverse tunable structural motifs for optimizing electrosynthesis, yet they remain underexplored, poorly understood structure–property relationships. This Focus Review summarizes recent computational experimental developments metal-compound-based catalysts, resultant mechanistic understanding catalyst design rules guiding future discoveries. The fundamental practical factors at reaction, catalyst, electrode, device levels that impact systematically discussed. Metal-compound-based can also enable efficient electro-Fenton processes environmental remediation biomass valorization.

Язык: Английский

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