Conjugated Coordination Polymer Composite Electrodes for Efficient Nitrogen Reduction Electrocatalysis

Composites Communications, Год журнала: 2025, Номер unknown, С. 102326 - 102326

Опубликована: Фев. 1, 2025

Язык: Английский

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Nickel-single-atom enriched conjugated coordination polymers for efficient urea oxidation electrocatalysis

Science China Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Март 5, 2025

Язык: Английский

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Defect‐Enriched Cobalt‐Based Coordination Polymers for Selective and Efficient Nitrate Electroreduction to Ammonia

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Abstract Electrocatalytic nitrate reduction to ammonia (NRA) offers an arousing route for converting widespread pollutant under mild conditions. Among other NRA catalysts, single‐atom catalyst (SAC) has emerged as a promising candidate due its numerous advantages such maximum metal‐atom‐utilization efficiency, homogeneous and tailorable active sites, which still encounters formidable challenge accelerate the kinetics simultaneously suppress competitive hydrogen evolution reaction, especially when operated in electrolytes with low concentration nitrate. Herein, general strategy is reported prepare defect‐enriched coordination polymer catalysts featuring well‐defined unsaturated metal can exhibit exceptional performance even at surpass SACs toward catalysis. Taking cobalt (Co) example, Co‐based polymers (d‐CoCP) counterpart CoCP without defects are investigated proof‐of‐concept study. Both experimental theoretical results elucidate that elaborately‐engineered d‐CoCP markedly decrease thermodynamic barrier reducing *NO *HNO rate‐limiting step along pathway, thus accelerating adsorption of promoting kinetics.

Язык: Английский

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RuO₂ sub‐nanocluster decorated Co₃O₄ as efficient and pH‐universal oxygen evolution electrocatalyst

InfoMat, Год журнала: 2025, Номер unknown

Опубликована: Март 11, 2025

Abstract Developing cost‐effective and highly efficient oxygen evolution reaction (OER) electrocatalysts that operate in both acidic alkaline media is crucial for industrial electrocatalytic water splitting. However, achieving high performance under dual pH conditions remains a significant challenge. Herein, we report the synthesis of multi‐sized RuO 2 sub‐nanoclusters on Co 3 O 4 nanoarrays via facile method, which demonstrates exceptional OER activity environments. The optimized catalyst exhibits remarkably low overpotentials 165 mV 0.5 M H SO 223 1 KOH at current density 10 mA cm −2 , respectively. Additionally, it outstanding stability, maintaining over 10‐h continuous operation, attributed to robust structural stability dispersed sub‐nanocluster morphology. Atomic‐scale investigations reveal layer‐by‐layer growth mechanism Ru substrate, transitioning from single atoms monolayer clusters ultimately as loading increases. This provides rational strategy precise design advanced cluster‐based catalysts. Density functional theory (DFT) calculations further elucidate strong oxide‐support interactions between matrix, facilitating electron transfer generating an electron‐deficient region. electronic modulation enhances –OH adsorption accelerates kinetics. These findings underscore potential metal designing durable electrolysis. image

Язык: Английский

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Atomic-Level Dispersed Cu in NiFe–LDH Hollow Nanocages for Highly Efficient Electrochemical Nitrate Reduction Reaction

ACS Catalysis, Год журнала: 2025, Номер unknown, С. 6918 - 6928

Опубликована: Апрель 14, 2025

Язык: Английский

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