Polyoxometalate‐Derived Photocatalysts Enabling Progress in Hydrogen Evolution Reactions

Advanced Sustainable Systems, Год журнала: 2024, Номер unknown

Опубликована: Окт. 29, 2024

Abstract Photocatalytic water splitting is capable of converting abundant solar energy into environmentally friendly and renewable chemical energy, presenting a promising solution to alleviate the crisis combat environmental pollution. The development high‐performance photocatalysts crucial for significantly improving efficiency hydrogen evolution reaction (HER) involved. Polyoxometalate (POM)‐derived materials, known their tunable compositions, diverse structures, electron storage/release capabilities, as well quasi‐semiconductor photochemical properties, serve highly efficient catalysts in sustainable photosynthesis. This comprehensive review navigates latest advancements assembly strategies HER performance POM‐based crystalline materials. It also discusses composite materials formed by infiltrating POM metal‐organic frameworks (MOF) examines roles transition metal compounds derived from polyoxometalates, such sulfides carbides, photocatalytic HER. Emphasis placed on prospects future photocatalysts, along with several outlooks that could facilitate progress. POM‐derived are believed have significant potential enhance production while maintaining thermal stability processes.

Язык: Английский

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Structurally Modulated NiV-LDH with CdMoSe-Quantum Dots: Unlocking the Active Centers at S-Scheme Heterojunctions for Stimulating Photocatalytic H₂O₂ Production and H₂ Evolution

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Фев. 3, 2025

Designing and accumulating quantum dots (QD) onto layered double hydroxide (LDH) for the photocatalytic production of H2 H2O2 is a formidable task. Here, we intended synthesis procedure CdMoSe-QD (CMS)-incorporated NiV-LDH (NV) through facile in situ reflux method explored activities CMS/NV (CNV) heterostructure. CNV-1 exhibits large interface contact area assures excellent interfacial charge transfer ability. Moreover, outstanding rates, i.e., 6.4 2.5 times higher than that pristine NV, respectively, due to formation an S-scheme heterojunction between NV CMS. Both CMS function as n-type semiconductors extend photoresponse visible regions. The composite achieves 1.67% SCC generation 7.36% ACE evolution. activity ascribed anodic photocurrent, confinement effect CMS, surface-active sites, delayed recombination excitons supported by PL EIS measurements. Further, mechanism was authenticated radical scavenging test work function, evaluated UPS measurement. Altogether, this study exemplifies concepts designing CNV heterostructure, which operates via n–n-based aims enhance production.

Язык: Английский

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Self‐Sacrificial Template‐Induced Fabrication of Sustainable Diode‐Type Micro‐Junction toward Supercapacitors and Green H₂ Evolution

Advanced Sustainable Systems, Год журнала: 2025, Номер unknown

Опубликована: Фев. 9, 2025

Abstract Energy conversion and storage are the key challenges in green chemistry that have garnered significant attention recent decades. Heterostructure materials, with their unique interfaces, robust architectures, synergistic effects, show great promise enhancing energy capabilities. However, intricate relationship between structural properties performance requires further investigation. This study introduces a novel diode‐type interfacial micro‐junction fabricated from FeCo‐based layered double hydroxide (LDH) using self‐sacrificial template‐induced method. The structure significantly enhances material's electronic properties, enabling efficient charge separation ion transport. As result, material demonstrates remarkable both photocatalytic hydrogen evolution supercapacitor applications. Specifically, optimized exhibits superior specific capacitance (1814.14 F g −1 at 1 A ), high density (61.6 Wh kg excellent cycling stability (90.7% retention after 15 000 cycles) coin cell supercapacitors. Additionally, light‐harvesting capabilities enhanced charge‐carrier dynamics make it promising candidate for H 2 rate of 577.8 µmol h . work not only advances development multifunctional materials clean applications, but also opens new avenues design high‐performance technologies.

Язык: Английский

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Rational design and interfacial engineering of hierarchical S-scheme heterojunction and their photocatalytic applications

EnergyChem, Год журнала: 2025, Номер unknown, С. 100159 - 100159

Опубликована: Июнь 1, 2025

Язык: Английский

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Exploring the formation of S-scheme heterojunctions in CuFe2O4/Bi2MoO6 porous cubes for photocatalytic removal of tetracycline

Journal of environmental chemical engineering, Год журнала: 2024, Номер unknown, С. 114255 - 114255

Опубликована: Сен. 1, 2024

Язык: Английский

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