Polyoxometallate Cluster Induced High-Entropy Oxide Sub-1 nm Nanosheets as Photoelectrocatalysts for Zn–Air Batteries

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(15), P. 10735 - 10744

Published: April 4, 2024

The lack of highly efficient and inexpensive catalysts severely hinders the large-scale application Zn–air batteries (ZABs). High-entropy oxides (HEOs) exhibit unique structures attractive properties; thus, they are promising to be used in ZABs. However, conventional high-temperature synthesis methods tend obtain microscale HEOs with a lower exposure rate active sites. Here, we report facile solvothermal strategy for preparing two-dimensional (2D) HEO sub-1 nm nanosheets (SNSs) induced by polyoxometalate (POM) clusters. Taking advantage special 2D structure precise element regulation, these HEOs-POM SNSs enhanced bifunctional oxygen evolution reduction reaction activity under light irradiation. Further applying ZABs as cathode catalysts, CoFeNiMnCuZnOx-phosphomolybdic acid SNSs-based deliver low charge/discharge voltage gap 0.25 V at 2 mA cm–2 Meanwhile, it could maintain an ultralong-term stability 1600 h 930 10 cm–2. fine control provide opportunities solve problems intrinsic activity, limited sites, instability air cathodes

Language: Английский

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Magnetic-field-induced activation of S-scheme heterojunction with core–shell structure for boosted photothermal-assisted photocatalytic H2 production

Fuel, Journal Year: 2024, Volume and Issue: 373, P. 132394 - 132394

Published: July 2, 2024

Language: Английский

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Recent advances on Co3O4-based nanostructure photocatalysis: Structure, Synthesis, Modification strategies, and Applications

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 54, P. 105152 - 105152

Published: Sept. 25, 2024

Language: Английский

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Unveiling Mechanistic Insight into Boosting Oxygen Species Activation over CeO2/Mn2O3 p–n Heterojunction for Efficient Photothermal Mineralization of Toluene

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: unknown, P. 137423 - 137423

Published: Jan. 1, 2025

Language: Английский

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Photo-assisted technologies for environmental remediation

Published: March 4, 2025

Language: Английский

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Tailoring CuO-CeO2 active sites on strontium titanate/ultra-stable Y zeolite catalyst for photothermal catalytic oxidation of toluene

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 340, P. 126771 - 126771

Published: Feb. 15, 2024

Language: Английский

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Boosting Photothermocatalytic Oxidation of Toluene Over Pt/N-TiO₂: The Gear Effect of Light and Heat

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(17), P. 7662 - 7671

Published: April 5, 2024

Photothermal catalysis is extremely promising for the removal of various indoor pollutants owing to its photothermal synergistic effect, while low light utilization efficiency and unclear catalytic mechanism hinder practical applications. Here, nitrogen atoms are introduced, Pt nanoparticles loaded on TiO2 construct Pt/N-TiO2-H2, which exhibits 3.5-fold higher toluene conversion rate than pure TiO2. Compared both photocatalytic thermocatalytic processes, Pt/N-TiO2-H2 exhibited remarkable performance stability in photothermocatalytic oxidation toluene, achieving 98.4% 98.3% CO2 yield under a intensity 260 mW cm–2. Furthermore, demonstrated potential applicability elimination volatile organic compounds. The effect occurs as thermocatalysis accelerates accumulation carboxylate species degradation aldehyde species, photocatalysis promotes generation consumption species. This ultimately enhances process. involves specific intermediates through interplay heat, providing novel insights design materials understanding mechanisms.

Language: Английский

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Reinforcing the photocatalytic removal of ibuprofen antibiotic over S-scheme 2D/1D Bi12O17Cl2/V2O5 heterojunction under solar light illumination

Solar Energy, Journal Year: 2024, Volume and Issue: 277, P. 112751 - 112751

Published: July 1, 2024

Language: Английский

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Highly efficient catalytic oxidation of toluene by amorphous/microcrystalline mixed-phase MnO2

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 345, P. 127348 - 127348

Published: April 3, 2024

Language: Английский

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Unveiling Mechanistic Insight into Accelerating Oxygen Molecule Activation by Oxygen Defects in Co₃O_4‐x/g‐C₃N₄ p–n Heterojunction for Efficient Photo‐Assisted Uranium Extraction from Seawater

Small, Journal Year: 2024, Volume and Issue: 20(43)

Published: July 7, 2024

Abstract Photo‐assisted uranium extraction from seawater (UES) is regarded as an efficient technique for resource recovery, yet it currently faces many challenges, such issues like biofouling resistance, low charge separation efficiency, slow carrier transfer, and a lack of active sites. Based on addressing the above novel oxygen‐deficient Co 3 O 4‐x /g‐C N 4 p–n heterojunction developed photo‐assisted seawater. Relying defect‐coupling synergistic effect, redistribution molecular density formed built‐in electric field revealed by DFT calculations, significantly enhancing efficiency carriers accelerating their migration rate. Notably, oxygen vacancies served capture sites oxygen, effectively promoting generation reactive species (ROS), thereby improving performance antibacterial activity. Thus, under simulated sunlight irradiation with no sacrificial reagent added, extracted high amount 1.08 mg g −1 25 L natural after 7 days, which superior to most reported carbon nitride‐based photocatalysts. This study elaborates important role surface defects inerface engineering strategies in photocatalytic performance, providing new approach development design material

Language: Английский

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