σ–π Hyperconjugation Unlocks Interlayer Charge Separation of Ullazine-Based Supramolecular Nanostructures for Photocatalytic Hydrogen Evolution

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 3267 - 3275

Published: Feb. 7, 2025

Language: Английский

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Sustainable photocatalytic hydrogen peroxide production over octonary high-entropy oxide

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Nov. 3, 2024

The direct utilization of solar energy for the artificial photosynthesis hydrogen peroxide (H2O2) provides a reliable approach producing this high-value green oxidant. Here we report on utility high-entropy oxide (HEO) semiconductor as an all-in-one photocatalyst visible light-driven H2O2 production directly from H2O and atmospheric O2 without need any additional cocatalysts or sacrificial agents. This contains eight earth-abundant metal elements (Ti/V/Cr/Nb/Mo/W/Al/Cu) homogeneously arranged within single rutile phase, intrinsic chemical complexity along with presence high density oxygen vacancies endow distinct broadband light harvesting capability. An efficient rate apparent quantum yield 38.8% at 550 nm can be achieved. readily assembled into floating leaves sustained on-site open water resources under natural sunlight irradiation. "all-in-one" enables photocatalytic external agents

Language: Английский

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Synthesis Strategies for High Entropy Nanoparticles

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 30, 2024

Abstract Nanoparticles (NPs) of high entropy materials (HEMs) have attracted significant attention due to their versatility and wide range applications. HEM NPs can be synthesized by fragmenting bulk HEMs or disintegrating recrystallizing them. Alternatively, directly producing in NP form from atomic/ionic/molecular precursors presents a challenge. A widely adopted strategy involves thermodynamically driving formation leveraging the entropic contribution but incorporating strategies limit growth at elevated temperatures used for maximizing entropy. second approach is kinetically drive promoting rapid reactions homogeneous reactant mixtures using highly diluted precursor dissolutions. Additionally, experimental evidence suggests that enthalpy plays role processes moderate temperatures, with energy cost generating additional surfaces interfaces nanoscale stabilizing phase. This review critically assesses various synthesis developed preparation, highlighting key illustrative examples offering insights into underlying mechanisms. Such are critical fine‐tuning conditions achieve specific outcomes, ultimately enabling effective optimized generations these advanced both current emerging applications across scientific technological fields.

Language: Английский

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Advancements in Nanoscale MOFs-Based Catalytic Materials: Synthesis Strategies and Applications

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 115613 - 115613

Published: Jan. 1, 2025

Language: Английский

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Manganese‐Based Metal‐Organic Frameworks and Their Derivatives for Electrochemical Water Splitting: Recent Advances and Future Outlook

Chemistry - An Asian Journal, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

Abstract Metal‐organic frameworks (MOFs) and their derivatives have recently attracted significant interest as promising candidates in water splitting due to well‐defined structural electronic features, three‐dimensional architecture, high surface area, abundance of active sites, remarkable stability, improved capabilities for mass transport diffusion. Mn‐based MOFs been extensively studied demonstrated potential splitting, inspired largely by the natural photosystem‐II. Despite development numerous electrocatalysts, Mn‐MOFs stand out strong synergistic interactions, tunable properties, efficient charge transfer, straightforward synthesis. However, recent reviews on overlooked specific advancements water‐splitting applications. By providing an overview uses materials, this article seeks close that gap. It looks at porosity, structure well how they are used splitting. This study offers a deeper knowledge properties related materials drawing groundbreaking research. The link between structure, property, performance is examined, current subject discussed, difficulties faced addressed, future developments taken into account.

Language: Английский

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In-situ construction of 3D/2D ZnIn2S4/Ni-MOLs: Highly efficient visible-light-driven photocatalytic heterojunction in hydrogen evolution

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: unknown, P. 124657 - 124657

Published: Sept. 1, 2024

Language: Английский

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A Novel Hexagonal Prism of Zr-based MOF@ZnIn2S4 Core−Shell Nanorod as an Efficient Photocatalyst for Hydrogen Evolution

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 361, P. 124686 - 124686

Published: Oct. 9, 2024

Language: Английский

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Reticular Materials for Photocatalysis

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 27, 2024

Abstract Photocatalysis leverages solar energy to overcome the thermodynamic barrier, enabling efficient chemical reactions under mild conditions. It can greatly reduce reliance on traditional sources and has attracted significant research interest. Reticular materials, including metal‐organic frameworks (MOFs) covalent organic (COFs), represent a class of crystalline materials constructed from molecular building blocks linked by coordination bonds, respectively. function as heterogeneous catalysts, combining well‐defined structures high tailorability akin homogeneous catalysts. In this review, regulation light absorption, charge separation, surface in photocatalytic process through precise molecular‐level design based features reticular is elaborated. Notably, for MOFsmicroenvironment modulation around catalytic sites affects performance delved, with emphasis their unique dynamic flexible microenvironments. For COFs, inherent excitonic effects due fully nature discussed highlight strategies regulate charge‐ and/or energy‐transfer‐mediated photocatalysis. Finally, current challenges future directions field, aiming provide comprehensive understanding how be optimized enhanced photocatalysis discussed.

Language: Английский

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High entropy materials: potential catalysts for electrochemical water Splitting

Green Chemistry, Journal Year: 2024, Volume and Issue: 26(18), P. 9569 - 9598

Published: Jan. 1, 2024

A comprehensive overview of the use HEM as a catalyst for HER, OER, and water splitting was provided.

Language: Английский

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Transition Metal‐Based High‐Entropy Materials for Catalysis

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

Published: Jan. 29, 2025

ABSTRACT High‐entropy materials (HEMs) have emerged as a pioneering paradigm in recent years, drawing substantial interest due to their unique combination of diverse elemental constituents and homogeneous solid‐solution structure. This novel material class not only opens up extensive potential for discovery through broad spectrum combinations but also facilitates fine‐tuning properties thanks its distinctive microstructural characteristics. HEMs garnered considerable attention across various applications, particularly catalysis. The virtually infinite variations compositional within these multi‐elemental systems enable meticulous optimization the catalytic performance. Additionally, high‐entropy structure potentially enhances structural, thermal, chemical stability, which is vital ensuring functionality under harsh conditions. Herein, we thoroughly explore exceptional attributes HEMs, designing strategies transition metal‐based catalysis, three major fields HEMs: electrocatalysis, photocatalysis, thermocatalysis. discussion aspires provide valuable perspectives into advancements innovations catalyst design development.

Language: Английский

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