Heterostructured Electrocatalysts: from Fundamental Microkinetic Model to Electron Configuration and Interfacial Reactive Microenvironment

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 4, 2025

Electrocatalysts can efficiently convert earth-abundant simple molecules into high-value-added products. In this context, heterostructures, which are largely determined by the interface, have emerged as a pivotal architecture for enhancing activity of electrocatalysts. review, atomistic understanding heterostructured electrocatalysts is considered, focusing on reaction kinetic rate and electron configuration, gained from both empirical studies theoretical models. We start fundamentals microkinetic model, adsorption energy theory, electric double layer model. The importance heterostructures to accelerate electrochemical processes via modulating configuration interfacial reactive microenvironment highlighted, considering rectification, space charge region, built-in field, synergistic interactions, lattice strain, geometric effect. conclude review summarizing challenges perspectives in field electrocatalysts, such determination transition state energy, their dynamic evolution, refinement approaches, use machine learning.

Язык: Английский

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Alkaline hydrogen oxidation reaction on nickel-based non-noble metal electrocatalysts

eScience, Год журнала: 2025, Номер unknown, С. 100400 - 100400

Опубликована: Март 1, 2025

Язык: Английский

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Multiple Functional Engineering Strategies and Active Site Identification in Ru‐Based Electrocatalysts for Catalytic Conversion Reactions

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 3, 2025

Electrochemical conversion has been regarded as an ideal technology for achieving clean and sustainable energy, showing significant promise in addressing the increasingly serious energy crisis environmental pollution. Ru-containing electrocatalysts (RUCE) outperform other precious metals due to elevated intrinsic activity superior cost-effectiveness, developing into a promising candidate electrochemical reactions. A challenge field of catalyst discovery lies its heavy reliance on empirical methods, rather than approaches that are rooted rational design principles. This review first concentrates catalytically active sites critical factors governing catalytic performance durability. Then, comprehensive summary multifunctional modification strategies ranging from nanoscale atomic scale is explored control structure improve performance. By unveiling roles each component modified RUCE at level, their identified discussed establish structure-performance relationship catalysts. Finally, challenges perspectives Ru-based materials hydrogen, oxygen, nitrogen reactions presented inspire further efforts toward understanding meet ever-growing demand future.

Язык: Английский

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Ruthenium-Mediated Synthesis of Ultrafine FePtCoNiRu High-Entropy Alloy Nanoparticles for Enhanced Hydrogen Evolution Catalysis

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 180933 - 180933

Опубликована: Май 1, 2025

Язык: Английский

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Ru Nanoparticle Assemblies Modified with Single Mo Atoms for Hydrogen Evolution Reactions in Seawater Electrocatalysis

Catalysts, Год журнала: 2025, Номер 15(5), С. 475 - 475

Опубликована: Май 12, 2025

Ru-based catalysts manifest unparalleled hydrogen evolution reaction (HER) performance, but the hydrolysis of Ru species and accumulation corresponding intermediates greatly limit HER activity stability. Herein, nanoparticle assemblies modified with single Mo atoms supported on N-incorporated graphene (referred to as MoRu-NG) are compounded via hydrothermal chemical vapor deposition (CVD) methods. The incorporation into lattices modifies local atomic milieu around centers, significantly improving catalytic behavior More specifically, MoRu-NG achieves overpotentials 53 mV 28 at 10 mA cm−2, exceptional stability in acidic alkaline seawater solutions, respectively. In MoRu-NG, have a special electronic structure thus possess optimal adsorption energy, which indicates that excellent mainly hinges upon centers. To be specific, d-electron orbitals close half full, giving moderate bond energy for assimilation release hydrogen, is beneficial conversion intermediates. Moreover, facilitates formation O O’-bidentate ligands, enhancing structural universal-pH electrolysis. This work advances feasible construction method hexagonal octahedral configuration (Ru-O-Mo-N-C) provides route synthesize an efficient stable catalyst electrocatalytic seawater.

Язык: Английский

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Synthesis and Electrocatalytic Applications of Polyelemental Nanoparticles

ACS Applied Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 14, 2025

Язык: Английский

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