Bifunctional Electrocatalysts for Overall and Hybrid Water Splitting

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(7), P. 3694 - 3812

Published: March 22, 2024

Electrocatalytic water splitting driven by renewable electricity has been recognized as a promising approach for green hydrogen production. Different from conventional strategies in developing electrocatalysts the two half-reactions of (e.g., and oxygen evolution reactions, HER OER) separately, there growing interest designing bifunctional electrocatalysts, which are able to catalyze both OER. In addition, considering high overpotentials required OER while limited value produced oxygen, is another rapidly exploring alternative oxidation reactions replace hybrid toward energy-efficient generation. This Review begins with an introduction on fundamental aspects splitting, followed thorough discussion various physicochemical characterization techniques that frequently employed probing active sites, emphasis reconstruction during redox electrolysis. The design, synthesis, performance diverse based noble metals, nonprecious metal-free nanocarbons, overall acidic alkaline electrolytes, thoroughly summarized compared. Next, their application also presented, wherein anodic include sacrificing agents oxidation, pollutants oxidative degradation, organics upgrading. Finally, concise statement current challenges future opportunities presented hope guiding endeavors quest sustainable

Language: Английский

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Degradation of organic pollutants from water by biochar-assisted advanced oxidation processes: Mechanisms and applications

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 442, P. 130075 - 130075

Published: Sept. 29, 2022

Language: Английский

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Vitamin C modified crayfish shells biochar efficiently remove tetracycline from water: A good medicine for water restoration

Chemosphere, Journal Year: 2022, Volume and Issue: 311, P. 136884 - 136884

Published: Oct. 17, 2022

Language: Английский

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A multiple Kirkendall strategy for converting nanosized zero-valent iron to highly active Fenton-like catalyst for organics degradation

Proceedings of the National Academy of Sciences, Journal Year: 2023, Volume and Issue: 120(39)

Published: Sept. 19, 2023

Nanosized zero-valent iron (nZVI) is a promising persulfate (PS) activator, however, its structurally dense oxide shell seriously inhibited electrons transfer for O-O bond cleavage of PS. Herein, we introduced sulfidation and phosphorus-doped biochar breaking the pristine with formation FeS FePO 4 -containing mixed shell. In this case, faster diffusion rate atoms compared to components triggered multiple Kirkendall effects, causing inward fluxion vacancies further coalescing into radial nanocracks. Exemplified by trichloroethylene (TCE) removal, such unique “lemon-slice-like” nanocrack structure favored fast outward ferrous ions across PS activation high-efficient generation utilization reactive species, as evidenced effective dechlorination (90.6%) mineralization (85.4%) TCE. O 2 • - contributed most TCE decomposition, moreover, SnZVI@PBC gradually became electron-deficient thus extracted from achieving nonradical-based degradation. Compared nZVI/PS process, SnZVI@PBC/PS system could significantly reduce catalyst dosage (87.5%) amount (68.8%) achieve nearly complete degradation, was anti-interference, stable, pH-universal. This study advanced mechanistic understandings effects-triggered on nZVI corresponding rational design Fenton-like catalysts organics

Language: Английский

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New use for Lentinus edodes bran biochar for tetracycline removal

Environmental Research, Journal Year: 2022, Volume and Issue: 216, P. 114651 - 114651

Published: Nov. 2, 2022

Language: Английский

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Photoinduced acceleration of Fe3+/Fe2+ cycle in heterogeneous FeNi-MOFs to boost peroxodisulfate activation for organic pollutant degradation

Applied Catalysis B Environment and Energy, Journal Year: 2022, Volume and Issue: 321, P. 122054 - 122054

Published: Oct. 8, 2022

Language: Английский

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A critical review of sustainable application of biochar for green remediation: Research uncertainty and future directions

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 904, P. 166813 - 166813

Published: Sept. 6, 2023

Language: Английский

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One-step preparation of Fe/N co-doped porous biochar for chromium(VI) and bisphenol a decontamination in water: Insights to co-activation and adsorption mechanisms

Bioresource Technology, Journal Year: 2022, Volume and Issue: 361, P. 127718 - 127718

Published: July 30, 2022

Language: Английский

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Enhanced elimination of Cr(VI) from aqueous media by polyethyleneimine modified corn straw biochar supported sulfide nanoscale zero valent iron: Performance and mechanism

Bioresource Technology, Journal Year: 2022, Volume and Issue: 369, P. 128452 - 128452

Published: Dec. 9, 2022

Language: Английский

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Application of nickel foam supported Cu–MnO2 in microwave enhanced Fenton-like process for p-nitrophenol removal: Degradation, synergy and mechanism insight

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 397, P. 136442 - 136442

Published: Feb. 24, 2023

Language: Английский

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