Self‐Cascade Ce‐MOF‐818 Nanozyme for Sequential Hydrolysis and Oxidation

Small, Год журнала: 2023, Номер 20(10)

Опубликована: Окт. 26, 2023

Abstract Mimicking efficient biocatalytic cascades using nanozymes has gained enormous attention in catalytic chemistry, but it remains challenging to develop a nanozyme‐based cascade system sequentially perform the desired reactions. Particularly, integration of sequential hydrolysis and oxidation reactions into systems not yet been achieved, despite their significant roles various domains. Herein, self‐cascade Ce‐MOF‐818 nanozyme for is developed. first Ce(IV)‐based heterometallic metal–organic framework constructed through coordination Ce Cu distinct groups. It successfully synthesized an improved solvothermal method, overcoming challenge posed by difference binding speeds ligands. With excellent organophosphate hydrolase‐like ( K m = 42.3 µ M , cat 0.0208 min −1 ) catechol oxidase‐like 2589 1.25 s activities attributed its bimetallic active centers, serves as promising platform oxidation. Notably, efficiency surpasses that physically mixed approximately fourfold, owning close sites. The developed hydrolysis–oxidation potential applications chemistry provides valuable insights rational design systems.

Язык: Английский

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Rational Design of Oxygen Species Adsorption on Nonnoble Metal Catalysts for Two‐Electron Oxygen Reduction

Advanced Energy Materials, Год журнала: 2023, Номер 14(1)

Опубликована: Ноя. 15, 2023

Abstract Molecular oxygen can be electrochemically reduced to water via the 4e − transfer pathway or hydrogen peroxide a 2e pathway, which holds significant relevance within energy conversion and chemical synthesis. The specific reduction reaction (ORR) pathways intricately hinge upon adsorption configuration state of species. Precisely steering species at active sites serves as crucial guiding principle for design preparation ORR catalysts. This review succinctly summarizes strategies employed regulate on nonnoble metal catalyst surfaces, encompassing insights into mechanism regulation intermediates, with particular focus produce H 2 O . Moreover, persistent challenges that remain in realm non‐noble catalysts are pointed out prospects their future development meticulously evaluated.

Язык: Английский

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Two-dimensional conductive metal-organic frameworks electrocatalyst: Design principle and energy conversion applications

Materials Today Energy, Год журнала: 2024, Номер 44, С. 101652 - 101652

Опубликована: Июль 21, 2024

Язык: Английский

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Continuous Electrosynthesis of Pure H₂O₂ Solution with Medical-Grade Concentration by a Conductive Ni-Phthalocyanine-Based Covalent Organic Framework

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(45), С. 31034 - 31041

Опубликована: Ноя. 4, 2024

Electrosynthesis of H

Язык: Английский

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Non‐precious Metal Catalysts for Two‐Electron Oxygen Reduction Reaction

ChemElectroChem, Год журнала: 2023, Номер 10(17)

Опубликована: Авг. 10, 2023

Abstract Hydrogen peroxide has been used in many industrial sectors including applications such as water purification, bleaching, oxidizing agents, and rocket fuels. As the conventional anthraquinone route of hydrogen production consumes significant energy generates a substantial amount chemical waste, an alternative method, electrochemical through two‐electron oxygen reduction reaction (ORR), garnered attention on basis eco‐friendly situ synthesis with low input. For practical viability, use non‐precious metal‐based catalysts is necessary, transition metal (Fe, Co, Ni)‐heteroatom (N, B, O, P, S) moiety or mesoporous structures efficient mass transfer reactants products from metal‐organic frameworks (MOFs). The ORR pathway adsorption intermediate *OOH are affected by combination metals heteroatoms. MOF, interaction between ligands, types metals, synergistic effect two species alloys can alter activity. This review discusses recently reported for focusing modification atomic configuration increasing electrocatalytic activity towards ORR.

Язык: Английский

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In situ synthesis of self-supporting conductive CuCo-based bimetal organic framework for sensitive nonenzymatic glucose sensing in serum and beverage

Food Chemistry, Год журнала: 2023, Номер 437, С. 137875 - 137875

Опубликована: Окт. 28, 2023

Язык: Английский

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Sustainable oily water reclamation through forward osmosis assisted by fouling-resistant membranes functionalized with arginine derivatives

Journal of Membrane Science, Год журнала: 2024, Номер 713, С. 123275 - 123275

Опубликована: Авг. 31, 2024

Язык: Английский

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Recent progress in metal-organic frameworks (Part II—material application)

Science China Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 3, 2025

Язык: Английский

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Balancing electrophilic and nucleophilic dual sites to construct efficient Mott–Schottky oxygen electrocatalysts

Chemical Engineering Science, Год журнала: 2025, Номер unknown, С. 121249 - 121249

Опубликована: Янв. 1, 2025

Язык: Английский

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Copper-Based Two-Dimensional Conductive Metal–Organic Framework Thin Films for Ultrasensitive Detection of Perfluoroalkyls in Drinking Water

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Фев. 8, 2025

Perfluoroalkyls (PFAS) continue to emerge as a global health threat making their effective detection and capture extremely important. Though metal-organic frameworks (MOFs) have stood out promising class of porous materials for sensing PFAS, limits remain insufficient fundamental understanding mechanisms warrants further investigation. Here, we show the use 2D conductive MOF film based on copper hexahydroxy triphenylene (Cu-HHTP) fabricate chemiresistive devices detecting PFAS in drinking water. We ultrasensitive using electrochemical impedance spectroscopy. Owing excellent electrostatic attractions interactions between copper-based confirmed by high-resolution spectroscopy theoretical simulations, MOF-based sensor reported herein exhibits affinity sensitivity toward perfluorinated acids at concentrations low 0.002 ng/L.

Язык: Английский

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