Structural Regulation Strategies of Atomic Cobalt Catalysts for Oxygen Electrocatalysis

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Abstract Oxygen electrocatalysis is a core reaction in renewable energy devices, greatly promoting the transformation and upgrading of structure. Nonetheless, performance conversion devices hindered by large overpotential slow kinetics oxygen electrocatalytic reactions. Recently, single‐atom catalysts (SACs) have emerged as promising contenders field because their exceptional metal atom utilization, distinctive coordination environment, adjustable electronic properties. This review presents latest advancements design Co‐based SACs for electrocatalysis. First, OER ORR mechanisms are introduced. Subsequently, strategies regulating structure summarized three aspects, including centers, support carriers. A particular emphasis given to relationship between properties catalysts. Afterward, applications explored. Ultimately, challenges prospects prospected.

Язык: Английский

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Performance optimization of zinc-air batteries via nanomaterials

Energy storage materials, Год журнала: 2025, Номер 75, С. 104109 - 104109

Опубликована: Фев. 1, 2025

Язык: Английский

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Advances in dual-site mechanisms for designing high-performance oxygen evolution electrocatalysts

eScience, Год журнала: 2025, Номер unknown, С. 100403 - 100403

Опубликована: Март 1, 2025

Язык: Английский

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MOF‐Based Electrocatalysts for Water Electrolysis, Energy Storage, and Sensing: Progress and Insights

The Chemical Record, Год журнала: 2025, Номер unknown

Опубликована: Апрель 24, 2025

Abstract Metal‐organic frameworks (MOFs) and their derivatives have shown broad application prospects in fields such as water electrolysis, electrochemical energy storage, sensing due to high specific surface area, tunable structures, abundant active sites. This article provides a comprehensive overview of our research group′s recent advancements developing MOF‐based electrocatalysts for Oxygen Evolution Reaction (OER) Urea Oxidation (UOR) at anodes, well Hydrogen (HER) cathodes during electrolysis. Furthermore, we integrated these catalysts into practical applications, including metal‐air batteries, lithium‐sulfur non‐enzymatic glucose sensors. To further demonstrate the innovative contributions work, systematically compare it with advanced work by other groups. Based on findings performance benchmarking analyses, identify critical challenges that must be addressed advance MOFs‐based toward next‐generation conversion sensing.

Язык: Английский

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Engineering p–d Orbital Coupling and Vacancy-Rich Structure in Triatomic Iron–Bismuth–Iron Sites for Rechargeable Zinc–Air Batteries

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Апрель 29, 2025

The rational design of heteroatomic sites with synergistic electronic modulation remains a critical challenge for achieving bifunctional oxygen electrocatalysis in sustainable energy technologies such as fuel cells and metal-air batteries. Herein, triatomic Fe2BiN5 configuration embedded nitrogen-doped carbon (Fe2BiN5/C) atomically dispersed FeN2-BiN-FeN2 vacancy-rich structures is synthesized via pyrolysis etching strategy. architecture endows Fe2BiN5/C exceptional activity, delivering high reduction reaction half-wave potential 0.918 V an evolution overpotential 245 mV at 10 mA cm-2, surpassing Pt/C RuO2. In situ X-ray absorption fine structure Raman spectroscopy reveal dynamic structural during electrocatalysis, where Fe acts the primary active center Bi regulating electron distribution long-range interactions, thereby optimizing adsorption/desorption energetics intermediates. theoretical calculations further elucidate that Bi-induced p-d orbital coupling leads to alteration d-orbitals level, downshift d-band center, weaken binding strength oxygen-based intermediates, reduced barrier electrocatalysis. This work provides understanding site p-block metal modulators transition-metal atoms toward enhanced catalysis.

Язык: Английский

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Honeycomb-Like Single-Atom Catalysts with FeN3Cl Sites for High-Performance Oxygen Reduction

Advanced Powder Materials, Год журнала: 2025, Номер unknown, С. 100298 - 100298

Опубликована: Апрель 1, 2025

Язык: Английский

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Pt Nanoparticles Anchored on N-Doped Carbon Containing Single Co Atoms as Catalyst for the Oxygen Reduction Reaction

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

Опубликована: Май 7, 2025

Язык: Английский

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Enhancing Rechargeable Zinc-Air Batteries with Atomically Dispersed Zinc Iron Cobalt Planar Sites on Porous Nitrogen-Doped Carbon

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Май 19, 2025

Rechargeable zinc-air batteries (ZABs) face significant challenges in achieving both high power density and long-term stability, primarily due to limitations catalytic materials for oxygen electrodes. Here, we present a trimetal planar heterogeneous metal catalyst featuring atomically dispersed ZnN4, FeN4, CoN4 sites supported on porous nitrogen-doped carbon substrate (ZnFeCo-NC) through templating approach. By fine-tuning the content of each metal, optimized ZnFeCo-NC-based ZAB achieves peak 244 mW cm-2 maintains durable performance 500 h at 10 mA cm-2. Ab initio molecular dynamics simulations reveal that ZnFeCo-NC configuration remains stable 300 K during reduction reaction (ORR)/oxygen evolution (OER) process. Further theoretical calculations demonstrate introduction adsorbed OH groups effectively tunes electronic structure redistribution active sites, particularly improving Fe site ORR Co OER. These findings provide insights into rational design high-performance electrocatalysts energy storage technologies.

Язык: Английский

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In-situ growth of CoNi bimetal on double-walled hollow carbon spheres/nanotube hybrid for boosting rechargeable Zn-air battery

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 181132 - 181132

Опубликована: Май 1, 2025

Язык: Английский

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Electronic interaction coupling of Fe-ZrO2 enables efficient and stable ORR electrocatalyst for long-cycling Zn-air battery

Next Energy, Год журнала: 2025, Номер 8, С. 100317 - 100317

Опубликована: Май 24, 2025

Язык: Английский

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