Structure, synthesis and application of carbon based double single atom catalysts

Desalination, Год журнала: 2025, Номер 606, С. 118762 - 118762

Опубликована: Март 3, 2025

Язык: Английский

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Magnetically recyclable bimetallic Pt-Co/CoO catalyst derived through hydrogen spillover for fast hydrogen release through ammonia borane hydrolysis

Surfaces and Interfaces, Год журнала: 2025, Номер unknown, С. 106242 - 106242

Опубликована: Март 1, 2025

Язык: Английский

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Metal-free two-dimensional nanomaterials supported single atom catalysts for energy conversion

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 180261 - 180261

Опубликована: Апрель 1, 2025

Язык: Английский

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Precise Synthesis of Dual-Atom Catalysts for Better Understanding the Enhanced Catalytic Performance and Synergistic Mechanism

Accounts of Chemical Research, Год журнала: 2025, Номер unknown

Опубликована: Апрель 10, 2025

ConspectusDual-atom catalysts (DACs), featuring two catalytic sites in close proximity, have emerged as a new frontier energy-related catalysis. Compared with single-atom (SACs), DACs more space to optimize the performance by changing dual-atom and their coordination environments. Through adjusting compositions environments of metal DACs, it is possible finely tune electronic geometric properties active centers, then synergistic effects for facilitating substrates activation intermediates stabilization can be strengthened or optimized, consequently tailoring diverse reaction pathways achieving various challenging reactions. The most important yet task studies precise synthesis which crucial understand relationship between structure at atomic level. In cases, were synthesized via pyrolysis mixture salts organic ligands, metals are randomly distributed was difficult control M···M distance (M = ion) uniform dispersion DACs. Hence, developing innovative strategies definite structures high-efficiency urgently needed.In this Account, we tentatively summarize applications conversion small molecules such H2O, CO2, so on. Focusing on three types been put forward systematically introduced. Based strategies, resulting high purity synergistically activating converting concurrently discussed, including cleavage C-C bonds, reduction CO2 Attempts made explain why these functions much higher than what SACs achieved. Efforts revealing influences dual-metal site types, separations dual metals, geometry configurations environments, well ligand performance. Emphasis has placed analysis structure-reactivity mechanism molecular Finally, perspectives current challenges future development forward. We anticipate believe that Account will provide profound insights into structurally defined give

Язык: Английский

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A Pt1Co1/CeO2 bimetallic single-atom catalyst with a strong Pt-Co synergistic effect for efficient oxidation of benzene

Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125369 - 125369

Опубликована: Апрель 1, 2025

Язык: Английский

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Breaking the Activity-and-Selectivity Seesaw while Enhancing Heat Management via the Lattice Effect of a Single-Atom Alloy

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Апрель 25, 2025

When single-atom catalysts are oriented toward practical applications, in addition to balancing the seesaw between activity and selectivity, capability of thermal management also merits attention. Herein, we proposed a facility approach that, based on active Pd state single atom, tunes guest Cu size simultaneously enhance effect d-electron domination heat transfer behavior microregions. Along with an order magnitude increase, more delocalized electrons were generated transferred isolated sites, d band center shifting from 1.438 1.052 eV, closer Fermi level. Simultaneously, long-range ordered lattices much favorable for transferring situ thermally phonons diffusivity surging 12.36 103.49 mm2/s. The optimized Pd1Cu-SAA catalyst exhibited state-of-the-art performance acetylene hydrogenation, achieving full conversion at 140 °C, 95.3% selectivity good stability test period.

Язык: Английский

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Rational Dual‐Atom Design to Boost Oxygen Reduction Reaction on Iron‐Based Electrocatalysts

Small, Год журнала: 2025, Номер unknown

Опубликована: Май 19, 2025

Abstract The oxygen reduction reaction (ORR) is critical for energy conversion technologies like fuel cells and metal–air batteries. However, advancing efficient stable ORR catalysts remains a significant challenge. Iron‐based single‐atom (Fe SACs) have emerged as promising alternatives to precious metals. their catalytic performance stability remain constrained. Introducing second metal (M) construct Fe─M dual‐atom (Fe─M DACs) an effective strategy enhance the of Fe SACs. This review provides comprehensive overview recent advancements in Fe‐based DACs ORR. It begins by examining structural advantages from perspectives electronic structure pathways. Next, precise synthetic strategies are discussed, structure–performance relationships explored, highlighting role improving activity stability. also covers situ characterization techniques real‐time observation dynamics intermediates. Finally, future directions proposed, emphasizing integration advanced experimental with theoretical simulations well artificial intelligence/machine learning design highly active catalysts, aiming expand application storage technologies.

Язык: Английский

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Correlation between ligand-mediated silver species on TiO2 nanosheet with the photocatalytic hydrogen evolution activities

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 683, С. 773 - 785

Опубликована: Дек. 18, 2024

Язык: Английский

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