MOF-Based Electrocatalysts: An Overview from the Perspective of Structural Design

Chemical Reviews, Год журнала: 2025, Номер unknown

Опубликована: Фев. 18, 2025

The electrocatalytic technique, as an efficient energy storage and conversion technology, has attracted significant attention to address exhaustion environmental pollution. Usually, the activity selectivity of reactions are largely dominated by dynamic process occurring on electrocatalysts. Therefore, high-performance electrocatalysts, which can dominate pathway barrier reactions, great significance for advancement technique. Metal-organic frameworks (MOFs), emerging crystalline porous materials, present structural component advantages including well-defined structure, high surface area, large porosity, diverse components, easy tailorability, demonstrating fantastic potential precise fabrication In this Review, strategies in electrocatalysts based MOF-related materials specifically introduced from aspects catalytic site design microenvironment modulation around sites. Furthermore, representative progress achieved various applications employing MOF-based is systematically summarized, with special emphasis MOFs performance optimization. Finally, remaining challenges future perspectives further highlighted.

Язык: Английский

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Metal-organic frameworks as thermocatalysts for hydrogen peroxide generation and environmental antibacterial applications

Science Advances, Год журнала: 2025, Номер 11(2)

Опубликована: Янв. 8, 2025

Reactive oxygen species (ROS) are highly reactive, making them useful for environmental and health applications. Traditionally, photocatalysts piezocatalysts have been used to generate ROS, but their utilization is limited by various physical constraints. This study introduces metal-organic frameworks (MOFs) as modern thermocatalysts efficiently producing hydrogen peroxide (H 2 O ) from small temperature differences. Temperature fluctuations, abundant in daily life, offer tremendous potential practical thermocatalytic As proof of concept, MOF materials coated onto carbon fiber fabric (MOF@CFF) created a antibacterial filter. The compared three different MOFs (CuBDC, MOF-303, ZIF-8) with bismuth telluride (Bi Te 3 ), known material. ZIF-8 demonstrated superior H generation under low-temperature differences, achieving 96% activity through variation cycles. work advances thermoelectric applications MOFs, enabling real-time purification disinfection generation. findings open interdisciplinary avenues leveraging effects catalysis technologies.

Язык: Английский

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Atomically Dispersed Vanadium‐Induced Ru‐V Dual Active Sites Enable Exceptional Performance for Acidic Water Oxidation

Angewandte Chemie International Edition, Год журнала: 2024, Номер 64(1)

Опубликована: Авг. 27, 2024

Regulating the catalytic reaction pathway to essentially break activity/stability trade-off that limits RuO

Язык: Английский

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Recent strategies to improve the electroactivity of metal–organic frameworks for advanced electrocatalysis

Deleted Journal, Год журнала: 2024, Номер 1(2), С. 181 - 206

Опубликована: Авг. 4, 2024

Abstract Metal–organic frameworks (MOFs) have emerged as promising materials in the realm of electrocatalysis due to their high surface area, tunable porosity, and versatile chemical functionality. However, practical application has been hampered by inherent limitations such low electrical conductivity a limited number active metal sites. Researchers addressed these challenges through various strategies, including enhancing incorporating conductive nanoparticles, modifying structure composition MOFs replacing nodes functionalizing linkers, preparing catalysts thermal processes decarburization conversion into oxides, phosphides (MPs), sulfides (MSs). This review provided comprehensive summary strategies that were employed enhance electroactivity for improved electrocatalytic performance recent years. It also explored future directions potential innovations design synthesis MOF‐based electrocatalysts, offering valuable insights advancing sustainable energy technologies.

Язык: Английский

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Unraveling the Role of Functional Groups of Terephthalate in Enhancing the Electrochemical Oxygen Evolution Reaction of Nickel–Organic Framework Nanoarrays

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 23, 2025

The platelike nickel-terephthalate-type metal-organic framework nanoarrays (Ni-BDC NAs) on carbon cloth are obtained by employing agaric-like Ni(OH)2 NAs as sacrificial templates. microenvironment of Ni-BDC is modulated various neighboring functional groups (-NH2, -NO2, and -Br) the carboxylate ligand, exerting minimal destructive effects structure morphology NAs. electrochemical oxygen evolution reaction (OER) Ni-BDC-NH2 NAs, Ni-BDC-NO2 Ni-BDC-Br exhibited a significant enhancement compared to that alone, evidenced both experimental theoretical assessments. presence exerts positive influence electronic coupling between Ni O atoms, thereby facilitating thermodynamically favorable formation *O intermediates sites accelerating kinetics OER. findings presented here provide valuable insights for design utilization carboxylic acid molecules with group effects, enhancing activity OER across diverse centers.

Язык: Английский

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Structure regulation of 2D materials by atom confinement for electrocatalysis

Coordination Chemistry Reviews, Год журнала: 2024, Номер 520, С. 216164 - 216164

Опубликована: Авг. 22, 2024

Язык: Английский

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From structure to function: MOF-based and COF-based catalysts for efficient electrocatalytic H₂O₂ production via 2e⁻ ORR

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(40), С. 27180 - 27205

Опубликована: Янв. 1, 2024

Overview of the structure and performance organic framework materials applied in 2e − ORR electrocatalysis.

Язык: Английский

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Atomically Dispersed Vanadium‐Induced Ru‐V Dual Active Sites Enable Exceptional Performance for Acidic Water Oxidation

Angewandte Chemie, Год журнала: 2024, Номер 137(1)

Опубликована: Авг. 27, 2024

Abstract Regulating the catalytic reaction pathway to essentially break activity/stability trade‐off that limits RuO 2 and thus achieves exceptional stability activity for acidic oxygen evolution (OER) is important yet challenging. Herein, we propose a novel strategy of incorporating atomically dispersed V species, including O‐bridged dimers single atoms, into lattices trigger direct O−O radical coupling release O without generation *OOH intermediates. n −RuO showed high with low overpotential 227 mV at 10 mA cm −2 outstanding during 1050 h test in electrolyte. Operando spectroscopic studies theoretical calculations revealed compared atom‐doping case, introduction dimer further decreases Ru‐V atomic distance weakens adsorption strength *O intermediate active site, which supports more energetically favorable mechanism (OCM). Furthermore, highly asymmetric Ru−O−V local structure stabilizes surface Ru center by lowering valence state increasing resistance against overoxidation, result stability. This study provides insight ways intrinsic species modification.

Язык: Английский

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MOF Nanosheet Enable Accelerated Redox Kinetics and Ultralow Overpotential for Light‐Assisted Li‐CO₂ Battery

Small, Год журнала: 2025, Номер unknown

Опубликована: Янв. 31, 2025

Lithium-carbon dioxide (Li-CO₂) batteries have attracted much attention due to their high energy density, low cost, and carbon sequestration. However, the sluggish conversion kinetics between CO₂ discharge product lithium carbonate (Li₂CO₃) hindered practical applications. Herein, a flower-like photosensitive metal-organic framework (FJU-115-NS) has been employed as cathodic electrocatalyst for Li-CO₂ batteries. The FJU-115-NS with well-ordered micropores abundant exposed catalytic sites can effectively facilitate ion transport catalyze Li₂CO₃ formation/decomposition, leading improved battery performance. At current density of 200 mA g⁻¹, exhibits substantial capacity 31579.34 h overpotential 1.31 V, stable operation over 3200 h. Importantly, under light irradiation, charging voltage significantly dropped from 4.45 V (without light) 3.43 at 2 A g⁻¹. Additionally, cell demonstrated an exceptionally just 0.45 highlighting its enhanced efficiency light-assisted conditions. This work provides valuable guidance developing MOF catalysts upgrade longevity

Язык: Английский

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Transformation of 3D Metal–Organic Frameworks into Nanosheets with Enhanced Memristive Behavior for Electronic Data Processing

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Март 2, 2025

Abstract The transition from three‐dimensional (3D) to two‐dimensional (2D) semiconducting and insulating materials for micro‐ opto‐electronics is driven by an energy efficiency device miniaturization. Herein, the simplicity of growth stacking 2D metal–organic framework (MOF) with such planar devices opens up new perspectives in controlling their operating parameters. Here, study reports on 3D MOF’ structural transformation achieve ultrathin nanosheets enhanced properties. Based neutral N‐donor ligands, designs solvothermally synthesizes MOFs followed thermal solvent treatment implement transformation. A set single crystal powder X‐ray diffraction, electron microscopy, Raman spectroscopy, numerical modeling, mechanical exfoliation confirm nature Compared initial MOF, its demonstrate sufficient changes electronic properties, expressed as tuning absorption, photoluminescence, resistivity. latter allows prototype memristive element based a 4 32 nm MOF nanosheet functionality (150 1400 ON/OFF ratio, retention time exceeding 7300 s, 100 cycles switching), thereby, extending list scalable opto‐electronics.

Язык: Английский

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