Covalent organic frameworks

Nature Reviews Methods Primers, Год журнала: 2023, Номер 3(1)

Опубликована: Янв. 12, 2023

Язык: Английский

---

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

---

Engineering Supramolecular Binding Sites in a Chemically Stable Metal‐Organic Framework for Simultaneous High C₂H₂Storage and Separation

Angewandte Chemie International Edition, Год журнала: 2022, Номер 61(41)

Опубликована: Авг. 18, 2022

Developing porous materials to overcome the trade-off between adsorption capacity and selectivity for C2 H2 /CO2 separation remains a challenge. Herein, we report stable HKUST-1-like MOF (ZJU-50a), featuring large cages decorated with high density of supramolecular binding sites achieve both storage selectivity. ZJU-50a exhibits one highest (192 cm3 g-1 ) concurrently (12) at 298 K 1 bar. Single-crystal X-ray diffraction studies on gas-loaded crystal unveil that incorporated can selectively take up molecule but not CO2 result in Breakthrough experiments validated its performance mixtures, providing recovery 84.2 L kg-1 99.5 % purity. This study suggests novel strategy engineering into MOFs this separation.

Язык: Английский

---

Chemistry of Metal–Organic Frameworks

The Royal Society of Chemistry eBooks, Год журнала: 2023, Номер unknown, С. 45 - 79

Опубликована: Авг. 2, 2023

Metal–organic frameworks (MOFs), which are a class of porous crystalline materials formed by the self-assembly organic and inorganic components, have received widespread interest over past decades. Due to their extraordinarily high porosity, adjustable pore sizes, controllable surface functionality, potential scalability, MOFs great for application in areas such as gas capture storage, sorbents, catalysis, drug delivery. The judicious choice both constituents enables vast opportunities framework design, leading with intrinsically variable structures properties. This chapter focuses on introducing versatile discussing how they can be synthesized different synthesis methods also characterized several techniques. Finally, some important properties MOFs, including electrochemical, optical, mechanical, thermal, magnetic properties, summarized.

Язык: Английский

---

Design and Advanced Manufacturing of NU‐1000 Metal–Organic Frameworks with Future Perspectives for Environmental and Renewable Energy Applications

Small, Год журнала: 2023, Номер 20(15)

Опубликована: Ноя. 23, 2023

Abstract Metal–organic frameworks (MOFs) represent a relatively new family of materials that attract lots attention thanks to their unique features such as hierarchical porosity, active metal centers, versatility linkers/metal nodes, and large surface area. Among the extended list MOFs, Zr‐based‐MOFs demonstrate comparably superior chemical thermal stabilities, making them ideal candidates for energy environmental applications. As Zr‐MOF, NU‐1000 is first synthesized at Northwestern University. A comprehensive review various approaches synthesis MOFs obtaining properties (e.g., diverse morphologies, area, particular pore size distribution) applications in catalysis (electro‐, photo‐catalysis), CO 2 reduction, batteries, hydrogen storage, gas storage/separation, other fields are presented. The further outlines current challenges development derivatives practical applications, revealing areas future investigation.

Язык: Английский

---

Thermocatalytic Conversion of CO₂ to Valuable Products Activated by Noble‐Metal‐Free Metal‐Organic Frameworks

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(34)

Опубликована: Май 12, 2023

Thermocatalysis of CO2 into high valuable products is an efficient and green method for mitigating global warming other environmental problems, which Noble-metal-free metal-organic frameworks (MOFs) are one the most promising heterogeneous catalysts thermocatalysis, many excellent researches have been published. Hence, this review focuses on obtained from various conversion reactions catalyzed by noble-metal-free MOFs, such as cyclic carbonates, oxazolidinones, carboxylic acids, N-phenylformamide, methanol, ethanol, methane. We classified these published references according to types products, analyzed methods improving catalytic efficiency MOFs in reaction. The advantages using MOF were also discussed along text. This concludes with future perspectives challenges be addressed potential research directions. believe that will helpful readers attract more scientists join topic conversion.

Язык: Английский

---

Structure–property–performance relationship of vanadium- and manganese-based metal–organic frameworks and their derivatives for energy storage and conversion applications

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(19), С. 11149 - 11175

Опубликована: Янв. 1, 2024

The current review discusses on vanadium- and manganese-based metal–organic frameworks their derivatives for energy storage conversion applications along with the potential future advancements in these fields.

Язык: Английский

---

Engineering Pore Environments of Sulfate‐Pillared Metal‐Organic Framework for Efficient C₂H₂/CO₂ Separation with Record Selectivity

Advanced Materials, Год журнала: 2023, Номер 35(20)

Опубликована: Март 1, 2023

Engineering pore environments exhibit great potential in improving gas adsorption and separation performances but require specific means for acetylene/carbon dioxide (C2 H2 /CO2 ) due to their identical dynamic diameters similar properties. Herein, a novel sulfate-pillared MOF adsorbent (SOFOUR-TEPE-Zn) using 1,1,2,2-tetra(pyridin-4-yl) ethene (TEPE) ligand with dense electronegative surfaces is reported. Compared the prototype SOFOUR-1-Zn, SOFOUR-TEPE-Zn exhibits higher C2 uptake (89.1 cm3 g-1 ), meanwhile CO2 reduces 14.1 , only 17.4% of that on SOFOUR-1-Zn (81.0 ). The high affinity toward than demonstrated by benchmark selectivity (16 833). Furthermore, breakthrough experiments confirm its application feasibility good cyclability at various flow rates. During desorption cycle, 60.1 99.5% purity or 33.2 99.99% can be recovered stepped purging mild heating. simulated pressure swing processes reveal 75.5 99.5+% recovery 99.82% produced counter-current blowdown process. Modeling studies disclose four favorable sites packing .

Язык: Английский

---

Incorporation of multiple supramolecular binding sites into a robust MOF for benchmark one-step ethylene purification

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

Опубликована: Окт. 2, 2023

One-step adsorption separation of C

Язык: Английский

---

Construction of Negative Electrostatic Pore Environments in a Scalable, Stable and Low‐Cost Metal‐organic Framework for One‐Step Ethylene Purification from Ternary Mixtures

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(44)

Опубликована: Сен. 12, 2023

One-step separation of C2 H4 from ternary mixtures by physisorbents remains a challenge to combine excellent performance with high stability, low cost, and easy scalability for industrial applications. Herein, we report strategy constructing negative electrostatic pore environments in stable, low-cost, easily scaled-up aluminum MOF (MOF-303) efficient one-step H2 /C2 H6 separation. This material exhibits not only record uptakes, but also top-tier selectivities at ambient conditions. Theoretical calculations combined situ infrared spectroscopy indicate that multiple N/O sites on channels can build electro-environment provide stronger interactions over . Breakthrough experiments confirm its exceptional mixtures, affording one the highest productivity 1.35 mmol g-1 is highly stable be synthesized kilogram-scale cheap raw materials using water-based green synthesis. The benchmark combination properties stability cost scalable MOF-303 has unlocked great potential this challenging

Язык: Английский

---