Isoreticular chemistry within metal–organic frameworks for gas storage and separation

Coordination Chemistry Reviews, Journal Year: 2021, Volume and Issue: 443, P. 213968 - 213968

Published: May 13, 2021

Language: Английский

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Design Rules of Hydrogen-Bonded Organic Frameworks with High Chemical and Thermal Stabilities

Journal of the American Chemical Society, Journal Year: 2022, Volume and Issue: 144(24), P. 10663 - 10687

Published: June 8, 2022

Hydrogen-bonded organic frameworks (HOFs), self-assembled from strategically pre-designed molecular tectons with complementary hydrogen-bonding patterns, are rapidly evolving into a novel and important class of porous materials. In addition to their common features shared other functionalized materials constructed modular building blocks, the intrinsically flexible reversible H-bonding connections endow HOFs straightforward purification procedures, high crystallinity, solution processability, recyclability. These unique advantages have attracted considerable attention across broad range fields, including gas adsorption separation, catalysis, chemical sensing, electrical optical However, relatively weak interactions within can potentially limit stability potential use in further applications. To that end, this Perspective highlights recent advances development chemically thermally robust HOF systematically discusses relevant design rules synthesis strategies access highly stable HOFs.

Language: Английский

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Zn‐MOF Encapsulated Antibacterial and Degradable Microneedles Array for Promoting Wound Healing

Advanced Healthcare Materials, Journal Year: 2021, Volume and Issue: 10(12)

Published: May 3, 2021

An infected skin wound caused by external injury remains a serious challenge in clinical practice. Wound dressings with the properties of antibacterial activity and potent regeneration capacity are highly desirable for healing. In this paper, degradable, ductile, wound-friendly Zn-MOF encapsulated methacrylated hyaluronic acid (MeHA) microneedles (MNs) array is fabricated through molding method promoting Due to damage capability against bacteria capsule oxidative stress zinc ion released from Zn-MOF, such MNs presents excellent activity, as well considerable biocompatibility. Besides, degradable composed photo-crosslinked MeHA possesses superior capabilities continuously steadily release loaded active ingredients avoid secondary wound. Moreover, low molecular weight (HA) generated hydrolysis also conducive tissue regeneration. Benefiting these features, it has been demonstrated that can dramatically accelerate epithelial neovascularization. These results indicate combination MOFs great value

Language: Английский

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Trilayer Metal–Organic Frameworks as Multifunctional Electrocatalysts for Energy Conversion and Storage Applications

Journal of the American Chemical Society, Journal Year: 2022, Volume and Issue: 144(8), P. 3411 - 3428

Published: Feb. 15, 2022

The need for enhanced energy storage and improved catalysts has led researchers to explore advanced functional materials sustainable production storage. Herein, we demonstrate a reductive electrosynthesis approach prepare layer-by-layer (LbL) assembled trimetallic Fe–Co–Ni metal–organic framework (MOF) in which the metal cations within each layer or at interface of two layers are linked one another by bridging 2-amino-1,4-benzenedicarboxylic acid linkers. Tailoring catalytically active sites an LbL fashion affords highly porous material that exhibits excellent trifunctional electrocatalytic activities toward hydrogen evolution reaction (ηj=10 = 116 mV), oxygen 254 as well reduction (half-wave potential 0.75 V vs reference electrode) alkaline solutions. dispersion-corrected density theory calculations suggest prominent catalytic activity MOF HER, OER, ORR is due initial negative adsorption water on nodes elongated O–H bond length H2O molecule. MOF-based Zn–air battery remarkable performance cycling stability over 700 cycles outperform commercial noble benchmarks. When asymmetric device configuration, activated carbon||Fe–Co–Ni supercapacitor provides superb specific power up 56.2 W h kg–1 42.2 kW kg–1, respectively. This work offers not only novel multimetallic but also benchmark multifunctional electrocatalyst splitting batteries.

Language: Английский

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Progress and potential of metal-organic frameworks (MOFs) for gas storage and separation: A review

Journal of environmental chemical engineering, Journal Year: 2022, Volume and Issue: 10(5), P. 108300 - 108300

Published: July 20, 2022

Language: Английский

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Recent progress on pristine metal/covalent-organic frameworks and their composites for lithium–sulfur batteries

Energy & Environmental Science, Journal Year: 2021, Volume and Issue: 14(4), P. 1835 - 1853

Published: Jan. 1, 2021

Recent advances of MOFs/COFs in research towards Li–S batteries terms cathodes, electrolytes, separators, and Li anodes have been fully investigated.

Language: Английский

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Energy Transfer in Metal–Organic Frameworks for Fluorescence Sensing

ACS Applied Materials & Interfaces, Journal Year: 2022, Volume and Issue: 14(8), P. 9970 - 9986

Published: Feb. 17, 2022

The development of materials with outstanding performance for sensitive and selective detection multiple analytes is essential the human health society. Luminescent metal-organic frameworks (LMOFs) have controllable surface pore sizes excellent optical properties. Therefore, a variety LMOF-based sensors diverse functions can be easily designed applied. Furthermore, introduction energy transfer (ET) into LMOFs (ET-LMOFs) could provide richer design concept much more accurate sensing performance. In this review, we focus on recent five years advances in ET-LMOF-based materials, an emphasis photochemical photophysical mechanisms. We discuss detail possible processes within MOF structure or between MOFs guest materials. Finally, applications are highlighted.

Language: Английский

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Oxygen-vacancy-mediated energy transfer for singlet oxygen generation by diketone-anchored MIL-125

Applied Catalysis B Environment and Energy, Journal Year: 2021, Volume and Issue: 292, P. 120197 - 120197

Published: April 3, 2021

Language: Английский

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Host–Guest Interaction Modulation in Porous Coordination Polymers for Inverse Selective CO₂/C₂H₂Separation

Angewandte Chemie International Edition, Journal Year: 2021, Volume and Issue: 60(21), P. 11688 - 11694

Published: Feb. 18, 2021

Abstract Controlling gas sorption by simple pore modification is important in molecular recognition and industrial separation processes. In particular, it challenging to realize the inverse selectivity, which reduces adsorption of a high‐affinity increases low‐affinity gas. Herein, an “opposite action” strategy demonstrated for boosting CO 2 /C H selectivity porous coordination polymers (PCPs). A precise steric design channel pores using amino group as additional interacting site enabled synergetic increase while suppressing C adsorption. Based on this strategy, two new ultramicroporous PCP physisorbents that are isostructural were synthesised. They exhibited highest uptake volume ratio at 298 K. Origin specific was verified detailed density functional theory calculations. The breakthrough performances with remarkable stability recyclability both PCPs render them relevant materials purification from mixtures.

Language: Английский

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Multivariate Polycrystalline Metal–Organic Framework Membranes for CO₂/CH₄ Separation

Journal of the American Chemical Society, Journal Year: 2021, Volume and Issue: 143(42), P. 17716 - 17723

Published: Oct. 5, 2021

Membrane technology is attractive for natural gas separation (removing CO2, H2O, and hydrocarbons from CH4) because of membranes' low energy consumption small environmental footprint. Compared to polymeric membranes, microporous inorganic membranes such as silicoaluminophosphate-34 (SAPO-34) membrane can retain their performance under conditions close industrial requirements. However, moisture in be strongly adsorbed the pores those thereby reducing performance. Herein, we report fabrication a polycrystalline MIL-160 on an Al2O3 substrate by situ hydrothermal synthesis. The with thickness ca. 3 μm shows remarkable molecular sieving effect separation. Besides, pore size environment precisely controlled using reticular chemistry regulating functionality ligand. Interestingly, more polar fluorine-functionalized multivariate MIL-160/CAU-10-F exhibits 10.7% increase selectivity CO2/CH4 31.2% CO2 permeance compared membrane. In addition, hydrophobic are resistant water vapor than hydrophilic SAPO-34 membranes.

Language: Английский

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