Microdroplet assisted hollow ZnCdS@PDA nanocages’ synergistic confinement effect for promoting photocatalytic H₂O₂ production

Materials Horizons, Journal Year: 2024, Volume and Issue: 11(6), P. 1515 - 1527

Published: Jan. 1, 2024

A ZnCdS@PDA hollow nanoreactor with sulfur vacancies and confinement effects is prepared. The microdroplets synergistically enrich O 2 for high photocatalytic H yield under neutral conditions without sacrificial agents.

Language: Английский

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Challenges and Prospects of Catalyst Design and Environmental Applications for On‐Site Hydrogen Peroxide Production via Diverse (Photo)Electrochemical Reaction Pathways

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 9, 2025

Hydrogen peroxide (H2O2) is an environmentally friendly and efficient oxidant with diverse applications in the chemical industry, medicine, energy, environmental protection. While anthraquinone oxidation process has traditionally dominated industrial H2O2 production, its complexity high pollution levels present significant challenges. In response, alternative methods such as electrochemical, photochemical, photoelectrochemical pathways have emerged, providing greener more sustainable solutions. These innovative approaches leverage only water, oxygen, solar or electrical positioning them viable substitutes for energy-intensive process. This review delves into latest advancements production through twoelectron oxygen reduction reaction (2e-ORR), water (2e-WOR), synergistic two-channel pathway (2e-ORR + 2e-WOR) (photo)electrochemical systems, focusing on pathways. It discusses underlying mechanisms, evaluation parameters, design of high-performance catalysts on-site applications. Recent developments advanced (photo)electrocatalysts over past five years are highlighted, including key strategies that enhance catalytic performance. The also addresses future challenges prospects catalyst practical systems serving a valuable reference researchers field.

Language: Английский

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Defective Photocathode: Fundamentals, Construction, and Catalytic Energy Conversion

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(48)

Published: July 23, 2023

Abstract The development of a long‐term and sustainable energy economy is one the most significant technological challenges facing humanity. Photoelectrochemical (PEC) technology considered as attractive route for converting solar into chemical energy. However, slow reaction kinetics PEC oxidation reduction greatly hinder its practical application. To address this issue, engineering photoelectrodes with various defects can significantly improve their catalytic performance, which not only regulate catalyst electronic structure but also promote charge transfer/separation by serving an active/adsorption/energy storage site. Herein, defect strategies are systematically summarized, focusing on latest progress in defective photocathode conversion. First, overview types, basic principles photocathode, positive role provided. Second, construction characterization methods summarized. Then, typical conversion applications, including hydrogen production, CO 2 reduction, nitrogen over reviewed, highlighting crucial high performance. Finally, future prospects discussed, aiming to bring new opportunities through engineering.

Language: Английский

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Progress and Opportunities in Photocatalytic, Electrocatalytic, and Photoelectrocatalytic Production of Hydrogen Peroxide Coupled with Biomass Valorization

ChemSusChem, Journal Year: 2024, Volume and Issue: unknown

Published: May 6, 2024

Abstract Hydrogen peroxide (H 2 O ) has been considered an energy carrier (fuel) and oxidizer for various chemical synthesis environmental remediation processes. Biomass valorization can generate high‐value‐added products in a green pollution‐free way to solve the crisis. The biomass coupled with H generation via photo‐, electro‐, photoelectrocatalysis plays positive role sustainable targets, which maximize utilization realize production of value‐added fuel synthesis. Recently, catalyst design mechanism studies are infancy stage. Herein, this review begins background on photoelectrocatalytic techniques generation, valorization, couples valorization. Meanwhile, progress reaction reviewed. Finally, prospects challenges synergistic system achieving high conversion, selectivity, efficiency envisioned.

Language: Английский

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Engineering the transition metal hydroxide–photoanode interface with a highly crystalline mediator for efficient photoelectrochemical water splitting

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(30), P. 19259 - 19267

Published: Jan. 1, 2024

A one-stone-two-birds strategy was developed to engineer the SC/TMH/electrolyte interface by introducing high crystallinity Fe(OH) X -H, and optimized BV/Fe(OH) -H/FeNi(OH) exhibited a noteworthy photocurrent density of 5.34 mA cm −2 .

Language: Английский

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Recent advances in green H2O2 production via metal-based functional materials: applications, strategies, and catalytic mechanisms

Rare Metals, Journal Year: 2025, Volume and Issue: unknown

Published: April 15, 2025

Language: Английский

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Electrocatalytic H2O2 production paired with value-added chemicals synthesis, contaminant remediation, and electricity generation

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159828 - 159828

Published: Jan. 1, 2025

Language: Английский

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Bias-free Si-based photocathode for efficient photoelectrochemical ammonia synthesis and HMF oxidation

Journal of Materials Chemistry A, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

In this work, leveraging the energy-saving characteristic of furfural with its low oxidation potential and high-performance Si–TiO 2 photocathode, we constructed a Si-based tandem bias-free ammonia production device.

Language: Английский

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Zn-O-Sn covalency interface governs the intrinsic activity of the Zn2SnO4/SnO2 heterostructure for boosting hydrogen peroxide production

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 361, P. 124625 - 124625

Published: Sept. 20, 2024

Language: Английский

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Hollow FeCo2O4@CuCo2O4 Z-Scheme Heterostructure Self-tandem Photoelectro-reduction of Nitrate to Ammonia on Cu−O−Fe Atomic Bridge and Energy Supply in a Zn-nitrate Cell System

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: unknown, P. 124899 - 124899

Published: Dec. 1, 2024

Language: Английский

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