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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Elucidating the Chirality-Induced Spin Selectivity Effect of Co-Doped NiO Deposited on Ni Foam for Highly Stable Zn–Air Batteries

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 13, 2025

The urgent need to alleviate global warming and limit the consumption of fossil fuels has prompted development rechargeable Zn–air batteries (ZABs) considering their superior energy density, safety, cost-effectiveness. However, sluggish reaction kinetics oxygen evolution (OER) unfavorable properties conventional OER catalysts (including low electrical conductivity use active site-blocking binders) hinder practically viable ZABs. Herein, we report a distinct approach for directly synthesizing cobalt-doped nickel oxide (Co-NiO) with chiral structure on porous Ni foam via one-step hydrothermal process. chirality-induced spin selectivity (CISS) boosts kinetics, while Co doping elevates abundance sites catalyst. Co-NiO demonstrates an current density 10 mA cm–2 at 1.58 V versus reversible hydrogen electrode, outperforming both achiral undoped NiO. Furthermore, Co-NiO-based ZAB high open-circuit potential (1.57 V), charge/discharge overpotential (0.71 excellent stability 960 h (40 days) because CISS effect mitigates production corrosive singlet oxygen. These results represent prominent pathway advancement ZABs using low-cost catalyst modulated by heteroatomic doping.

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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FeS as hole transport pathway regulating charge transfer for efficient photoelectrochemical water splitting of hematite photoanodes

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 158993 - 158993

Published: Dec. 1, 2024

Language: Английский

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