Metal‐Organic Frameworks for Photocatalytic Water Splitting and CO₂Reduction

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(15)

Опубликована: Янв. 23, 2023

Abstract Photocatalytic water splitting and carbon dioxide (CO 2 ) reduction provide promising solutions to global energy environmental issues. In recent years, metal‐organic frameworks (MOFs), a class of crystalline porous solids featuring well‐defined tailorable structures as well high surface areas, have captured great interest toward photocatalytic CO reduction. this review, the semiconductor‐like behavior MOFs is first discussed. We then summarize advances in over MOF‐based materials focus on unique advantage for clarifying structure‐property relationship photocatalysis. addition, some representative characterization techniques been presented unveil kinetics reaction intermediates systems. Finally, challenges, perspectives future directions are proposed.

Язык: Английский

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Designing covalent organic frameworks with Co-O4 atomic sites for efficient CO2 photoreduction

Nature Communications, Год журнала: 2023, Номер 14(1)

Опубликована: Фев. 28, 2023

Abstract Cobalt coordinated covalent organic frameworks have attracted increasing interest in the field of CO 2 photoreduction to CO, owing their high electron affinity and predesigned structures. However, achieving conversion efficiency is challenging since most Co related coordination environments facilitate fast recombination photogenerated electron-hole pairs. Here, we design two kinds Co-COF catalysts with oxygen atoms find that after tuning environment, reported framework catalyst Co-O 4 sites exhibits a production rate 18000 µmol g −1 h selectivity as 95.7% under visible light irradiation. From in/ex-situ spectral characterizations theoretical calculations, it revealed significantly carrier migration matrixes inhibit pairs photocatalytic process. This work opens way for high-performance photoreduction.

Язык: Английский

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Graphene-Based Metal–Organic Framework Hybrids for Applications in Catalysis, Environmental, and Energy Technologies

Chemical Reviews, Год журнала: 2022, Номер 122(24), С. 17241 - 17338

Опубликована: Ноя. 1, 2022

Current energy and environmental challenges demand the development design of multifunctional porous materials with tunable properties for catalysis, water purification, conversion storage. Because their amenability to de novo reticular chemistry, metal-organic frameworks (MOFs) have become key in this area. However, usefulness is often limited by low chemical stability, conductivity inappropriate pore sizes. Conductive two-dimensional (2D) robust structural skeletons and/or functionalized surfaces can form stabilizing interactions MOF components, enabling fabrication nanocomposites characteristics. Graphene its functional derivatives are largest class 2D possess remarkable compositional versatility, diversity, controllable surface chemistry. Here, we critically review current knowledge concerning growth, structure, graphene derivatives, MOFs, graphene@MOF composites as well associated structure-property-performance relationships. Synthetic strategies preparing tuning also comprehensively reviewed together applications gas storage/separation, catalysis (organo-, electro-, photocatalysis), electrochemical storage conversion. hybrids practical addressed, revealing areas future investigation. We hope that will inspire further exploration new energy, electronic, biomedical, photocatalysis studies on previously unreported known reveal potential "diamonds rough".

Язык: Английский

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Metal–organic framework (MOF)-, covalent-organic framework (COF)-, and porous-organic polymers (POP)-catalyzed selective C–H bond activation and functionalization reactions

Chemical Society Reviews, Год журнала: 2022, Номер 51(18), С. 7810 - 7882

Опубликована: Янв. 1, 2022

Although C–H functionalization is one of the simplest reactions, it requires use highly active and selective catalysts. Recently, C–H-active transformations using porous materials such as crystalline metal-organic frameworks (MOFs) covalent-organic (COFs) well amorphous porous-organic polymers (POPs) new emerging heterogeneous catalysts have attracted significant attention due to their promising activity potential material tunability. These solids offer exceptional structural uniformity, facile tunability permanent porosity. In addition, tuning catalytic selectivity these can be achieved through engineering site microenvironments, metal node substitution, linker changes, node/linker functionalization, pore modification. The present review provides an overview current state art on MOFs, COFs POPs advanced for various bond activation providing details about chemo-, regio-, stereo-selectivity control, comparing performance with that other catalysts, triggering additional research by showing limitations challenges in this area, a perspective future developments.

Язык: Английский

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Tuning the electronic structure of a metal–organic framework for an efficient oxygen evolution reaction by introducing minor atomically dispersed ruthenium

Carbon Energy, Год журнала: 2022, Номер 5(2)

Опубликована: Сен. 26, 2022

Abstract The establishment of efficient oxygen evolution electrocatalysts is great value but also challenging. Herein, a durable metal–organic framework (MOF) with minor atomically dispersed ruthenium and an optimized electronic structure constructed as electrocatalyst. Significantly, the obtained NiRu 0.08 ‐MOF doping Ru only needs overpotential 187 mV at 10 mA cm −2 Tafel slop 40 dec −1 in 0.1 M KOH for reaction, can work continuously more than 300 h. Ultrahigh mass activity achieved, reaching 56.7 A g 200 mV, which 36 times higher that commercial RuO 2 . X‐ray adsorption spectroscopy density function theory calculations reveal on metal sites MOFs expected to optimize nickel sites, thus improving conductivity catalyst optimizing energy intermediates, resulting significant optimization electrocatalytic performance. This study could provide new avenue design stable MOF electrocatalysts.

Язык: Английский

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Recent development of metal-organic framework nanocomposites for biomedical applications

Biomaterials, Год журнала: 2021, Номер 281, С. 121322 - 121322

Опубликована: Дек. 15, 2021

Язык: Английский

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Biodegradable Metal–Organic‐Framework‐Gated Organosilica for Tumor‐Microenvironment‐Unlocked Glutathione‐Depletion‐Enhanced Synergistic Therapy

Advanced Materials, Год журнала: 2021, Номер 34(12)

Опубликована: Дек. 13, 2021

The clinical employment of cisplatin (cis-diamminedichloroplatinum(II) (CDDP)) is largely constrained due to the non-specific delivery and resultant serious systemic toxicity. Small-sized biocompatible biodegradable hollow mesoporous organosilica (HMOS) nanoparticles show superior advantages for targeted CDDP but suffer from premature leakage. Herein, smart use a bimetallic Zn2+ /Cu2+ co-doped metal-organic framework (MOF) made block pores HMOS preventing potential leakage remarkably increasing loading capacity HMOS. Once reaching acidic tumor microenvironment (TME), outer MOF can decompose quickly release chemotherapy against cancer. Besides, concomitant dopant Cu2+ deplete intracellular glutathione (GSH) increased toxicity as well catalyzing decomposition intratumoral H2 O2 into highly toxic •OH chemodynamic therapy (CDT). Moreover, substantially reduced GSH also protect yielded scavenging thus greatly improve •OH-based CDT effect. In addition providing hybrid HMOS@MOF nanocarrier, this study expected establish new form TME-unlocked nanoformula efficient tumor-specific GSH-depletion-enhanced synergistic chemotherapy/chemodynamic therapy.

Язык: Английский

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Enhanced adsorption and visible-light photocatalytic degradation of toluene by CQDs/UiO-66 MOG with hierarchical pores

Chemical Engineering Journal, Год журнала: 2022, Номер 435, С. 135033 - 135033

Опубликована: Фев. 4, 2022

Язык: Английский

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Porous crystalline materials for memories and neuromorphic computing systems

Chemical Society Reviews, Год журнала: 2023, Номер 52(20), С. 7071 - 7136

Опубликована: Янв. 1, 2023

This review highlights the film preparation methods and application advances in memory neuromorphic electronics of porous crystalline materials, involving MOFs, COFs, HOFs, zeolites.

Язык: Английский

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Encapsulating gold nanoclusters into metal–organic frameworks to boost luminescence for sensitive detection of copper ions and organophosphorus pesticides

Journal of Hazardous Materials, Год журнала: 2022, Номер 441, С. 129890 - 129890

Опубликована: Сен. 5, 2022

Язык: Английский

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