Catalysis under electric-/magnetic-/electromagnetic-field coupling

Chemical Society Reviews, Год журнала: 2024, Номер unknown

Опубликована: Дек. 19, 2024

This review outlines recent advances in field-regulated catalysis and reveals the key role of dipole manipulation by electric/magnetic/electromagnetic fields.

Язык: Английский

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Mechanistic insight into piezo-catalytic H2 evolution on BiOCl loaded with AuPt alloy cocatalysts

Journal of Alloys and Compounds, Год журнала: 2024, Номер 1009, С. 177015 - 177015

Опубликована: Окт. 14, 2024

Язык: Английский

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Recent advances in piezo-photocatalytic heterojunctions for energy and environmental applications

Materials Today Sustainability, Год журнала: 2024, Номер 28, С. 100973 - 100973

Опубликована: Сен. 6, 2024

Язык: Английский

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Unveiling the Flexocatalytic Potential of Wide‐Bandgap Spinel Oxides: Light‐Free Hydrogen Evolution via Strain‐Induced Polarization and Oxygen Vacancy Engineering

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Abstract Wide‐bandgap spinel oxides, such as ZnAl 2 O 4 (ZAO) and ZnCr (ZCO), are traditionally limited by poor electron activation under light irradiation, resulting in suboptimal photocatalytic performance. This study investigates a novel approach to overcoming these limitations leveraging the flexoelectric effect centrosymmetric porous nanoparticles with wrinkled surfaces. The inhomogeneous strain gradients generated mechanical force induce polarization, offering promising pathway enhance activity. ZAO outperforms ZCO due smaller atomic radius of aluminum, allowing greater displacement higher which prolongs electron‐hole recombination. Oxygen vacancies (O V ) further performance, ZAO‐200 (annealed at 200 °C) achieving longest carrier lifetime (4.65 ns) an exceptional hydrogen evolution rate 3737 µmol g −1 h —206% than pristine ZAO—without stimulation. Density functional theory (DFT) calculations confirm lower reaction (HER) energy barrier for (ΔG H = −0.13 eV) compared (1.34 reveal spontaneous water splitting sites without input. A unique butterfly curve validates potential generation from gradients. These findings establish framework eco‐friendly production, demonstrating that polarization engineering can surpass traditional methods sustainability efficiency.

Язык: Английский

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Boosting piezo-catalytic H2 production on g-C3N4 via carbon-ring doping to shorten in-plane charge transfer distance

Ceramics International, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

Язык: Английский

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Enhancing Piezo-Catalytic Hydrogen Evolution on BiOCl through UV Irradiation

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Апрель 29, 2025

Hydrogen production from water using piezo-catalysis is increasingly popular, but it typically requires expensive noble metal cocatalysts to speed up the reactions. In this study, we found that a UV irradiation treatment on piezoelectric material BiOCl enhances its H2 evolution by 6.8 folds, 0.41 2.81 mmol/g/h, even outperforming those loaded with cocatalysts. Our experiments and simulations revealed prompts in situ reduction of lattice Bi3+ BiOCl, creating Bi nanoparticles surface. These serve as cocatalysts, enhancing hydrogen (1) capturing piezo-generated electrons Bi's higher work function; (2) facilitating charge transfer between due their intimate contact; (3) improving kinetics more suitable H* adsorption strength. This UV-enhancement technique can be applied various Bi-based materials (e.g., BiOBr, BiOI, Bi2WO6, etc.) well piezo-catalytic dye degradation reactions, demonstrating versatility potential for broader applications. research provides straightforward cost-effective approach improve performance without need costly

Язык: Английский

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Unveiling Mechanically Driven Catalytic Processes: Beyond Piezocatalysis to Synergetic Effects

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Май 6, 2025

Mechanically driven catalysis (MDC) has emerged as an effective strategy for environmental remediation, renewable energy conversion, and cancer therapy; this functions by converting mechanical forces to drive catalytic reactions. This review examines four primary mechanisms, namely, piezocatalysis, flexocatalysis, tribocatalysis, sonocatalysis, each involving specific pathways harnessing at the nanoscale. However, significant challenges arise in decoupling effects related individual mechanism order better understand manipulate their synergies. In review, fundamental principles underpinning MDC are systematically interpreted. Beyond mechanistic insights, recent advancements performance enhancement strategies these catalysts highlighted. Potential applications using approaches remediation (pollutant antibiotic degradation microbial disinfection), conversion (hydrogen production greenhouse gas conversion), biomedical treatments (particularly therapy) discussed. Finally, synergies limiting factors explored, addressing overlooked combined of ultrasound activation source, complexities force interactions nanoscale, need targeted application strategies. Additionally, industrial potential processes with consideration scalability practical deployment is evaluated. While remain, provides a roadmap advancing mechanically catalyst design implementation toward real-world applications, offering into its future trajectory transformative impact across numerous fields.

Язык: Английский

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Effect of Sonication Approaches on the Silanization and Structural Quality of Multilayer Ti₃C₂T_x

Advanced Engineering Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 6, 2025

MXenes have attracted attention due to their high specific surface area, excellent electrical conductivity, and considerable mechanical properties. Multilayer Ti 3 C 2 T x faces challenges related restacking agglomeration as well its limited oxidation/degradation resistance in oxygen‐containing environments. In this study, multilayer is chemically functionalized by silanization with trimethoxy(octyl)silane while varying the dispersion approach. The impact of four sonication approaches on success Fourier transform infrared spectroscopy, Raman scanning electron microscopy coupled energy dispersive X‐ray photoelectron studied. Regardless approach, all procedures successfully silanize , demonstrating robustness each individual procedure. Moreover, various do not affect samples’ morphology. two‐step approach (method B) that consists dispersing first isopropanol for 20 min using bath‐sonication then them 30 isopropanol/toluene/trimethoxy(octyl)silane bath notably reduces amount amorphous carbon indicating an enhanced structural quality reduced defective carbon. silanized obtained method B shows oxidation stability, a greater hydrophobicity, improved stability apolar solvents compared pristine .

Язык: Английский

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Electronic-Reconstructed Fe2O3/NiWO4 heterojunction nanosheets for large-current-density oxygen evolution

International Journal of Hydrogen Energy, Год журнала: 2025, Номер 144, С. 143 - 151

Опубликована: Июнь 6, 2025

Язык: Английский

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Photothermic-catalytic bifunctionality of boron-doped molybdenum disulfide nanosheets enabling simultaneous solar evaporation and antibiotic destruction

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 156716 - 156716

Опубликована: Окт. 1, 2024

Язык: Английский

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