Microporous Metal-Organic Framework Materials for Gas Separation

Chem, Journal Year: 2019, Volume and Issue: 6(2), P. 337 - 363

Published: Nov. 11, 2019

Language: Английский

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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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Optimizing Multivariate Metal–Organic Frameworks for Efficient C₂H₂/CO₂ Separation

Journal of the American Chemical Society, Journal Year: 2020, Volume and Issue: 142(19), P. 8728 - 8737

Published: March 19, 2020

Adsorptive separation of acetylene (C2H2) from carbon dioxide (CO2) promises a practical way to produce high-purity C2H2 required for industrial applications. However, challenges exist in the pore environment engineering porous materials recognize two molecules due their similar molecular sizes and physical properties. Herein, we report strategy optimize environments multivariate metal-organic frameworks (MOFs) efficient C2H2/CO2 by tuning metal components, functionalized linkers, terminal ligands. The optimized material UPC-200(Al)-F-BIM, constructed Al3+ clusters, fluorine-functionalized organic benzimidazole ligands, demonstrated highest efficiency (C2H2/CO2 uptake ratio 2.6) productivity among UPC-200 systems. Experimental computational studies revealed contribution small size polar functional groups on selectivity indicated UPC-200(Al)-F-BIM.

Language: Английский

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Mixed Metal–Organic Framework with Multiple Binding Sites for Efficient C₂H₂/CO₂Separation

Angewandte Chemie International Edition, Journal Year: 2020, Volume and Issue: 59(11), P. 4396 - 4400

Published: Jan. 13, 2020

The separation of C

Language: Английский

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Metal–Organic Frameworks as a Versatile Platform for Proton Conductors

Advanced Materials, Journal Year: 2020, Volume and Issue: 32(21)

Published: April 3, 2020

Metal-organic frameworks (MOFs) are an intriguing type of crystalline porous materials that can be readily built from metal ions or clusters and organic linkers. Recently, MOF materials, featuring high surface areas, rich structural tunability, functional pore surfaces, which accommodate a variety guest molecules as proton carriers to systemically regulate the concentration mobility within available space, have attracted tremendous attention for their roles solid electrolytes in fuel cells. Recent advances MOFs versatile platform conduction field humidity condition proton-conduction, anhydrous atmosphere single-crystal including MOF-based membranes cells, summarized highlighted. Furthermore, challenges, future trends, prospects also discussed.

Language: Английский

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A Review on Metal–Organic Framework-Derived Porous Carbon-Based Novel Microwave Absorption Materials

Nano-Micro Letters, Journal Year: 2021, Volume and Issue: 13(1)

Published: Jan. 12, 2021

Abstract The development of microwave absorption materials (MAMs) is a considerable important topic because our living space crowed with electromagnetic wave which threatens human’s health. And MAMs are also used in radar stealth for protecting the weapons from being detected. Many nanomaterials were studied as MAMs, but not all them have satisfactory performance. Recently, metal–organic frameworks (MOFs) attracted tremendous attention owing to their tunable chemical structures, diverse properties, large specific surface area and uniform pore distribution. MOF can transform porous carbon (PC) decorated metal species at appropriate pyrolysis temperature. However, loss mechanism pure MOF-derived PC often relatively simple. In order further improve MA performance, MOFs coupled other widely method. this review, we summarize theories MA, progress different PC‑based structures incorporated dielectric or magnetic materials. performance mechanisms discussed detail. Finally, shortcomings, challenges perspectives presented. We hope review could provide new insight design fabricate PC-based better fundamental understanding practical application.

Language: Английский

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A Chemically Stable Hofmann‐Type Metal−Organic Framework with Sandwich‐Like Binding Sites for Benchmark Acetylene Capture

Advanced Materials, Journal Year: 2020, Volume and Issue: 32(24)

Published: May 11, 2020

The realization of porous materials for highly selective separation acetylene (C2 H2 ) from various other gases (e.g., carbon dioxide and ethylene) by adsorption is prime importance but challenging in the petrochemical industry. Herein, a chemically stable Hofmann-type metal-organic framework (MOF), Co(pyz)[Ni(CN)4 ] (termed as ZJU-74a), that features sandwich-like binding sites benchmark C2 capture reported. Gas sorption isotherms reveal ZJU-74a exhibits far record capacity (49 cm3 g-1 at 0.01 bar 296 K) thus ultrahigh selectivity /CO2 (36.5), /C2 H4 (24.2), /CH4 (1312.9) ambient conditions, respectively, which highest among all robust MOFs reported so far. Theoretical calculations indicate oppositely adjacent nickel(II) centers together with cyanide groups different layers can construct sandwich-type site to offer dually strong cooperative interactions molecule, leading its selectivities. exceptional performance confirmed both simulated experimental breakthrough curves 50/50 (v/v) , 1/99 mixtures under conditions.

Language: Английский

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Microporous framework membranes for precise molecule/ion separations

Chemical Society Reviews, Journal Year: 2020, Volume and Issue: 50(2), P. 986 - 1029

Published: Nov. 23, 2020

Microporous framework membranes with well-defined micropore structure such as metal-organic and covalent organic hold great promise for the enormous challenging separations in energy environment fields.

Language: Английский

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Selective capture of carbon dioxide from hydrocarbons using a metal-organic framework

Nature Communications, Journal Year: 2021, Volume and Issue: 12(1)

Published: Jan. 8, 2021

Abstract Efficient and sustainable methods for carbon dioxide capture are highly sought after. Mature technologies involve chemical reactions that absorb CO 2, but they have many drawbacks. Energy-efficient alternatives may be realised by porous physisorbents with void spaces complementary in size electrostatic potential to molecular 2 . Here, we present a robust, recyclable inexpensive adsorbent termed MUF-16. This metal-organic framework captures high affinity its one-dimensional channels, as determined adsorption isotherms, X-ray crystallography density-functional theory calculations. Its low other competing gases delivers selectivity the of over methane, acetylene, ethylene, ethane, propylene propane. For equimolar mixtures /CH 4 /C H , is 6690 510, respectively. Breakthrough gas separations under dynamic conditions benefit from short time lags elution weakly-adsorbed component deliver high-purity hydrocarbon products, including pure methane acetylene.

Language: Английский

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Metal–Organic Framework Based Hydrogen-Bonding Nanotrap for Efficient Acetylene Storage and Separation

Journal of the American Chemical Society, Journal Year: 2021, Volume and Issue: 144(4), P. 1681 - 1689

Published: Dec. 29, 2021

The removal of carbon dioxide (CO2) from acetylene (C2H2) is a critical industrial process for manufacturing high-purity C2H2. However, it remains challenging to address the tradeoff between adsorption capacity and selectivity, on account their similar physical properties molecular sizes. To overcome this difficulty, here we report novel strategy involving regulation hydrogen-bonding nanotrap pore surface promote separation C2H2/CO2 mixtures in three isostructural metal-organic frameworks (MOFs, named MIL-160, CAU-10H, CAU-23, respectively). Among them, which has abundant acceptors as nanotraps, can selectively capture molecules demonstrates an ultrahigh C2H2 storage (191 cm3 g-1, or 213 cm-3) but much less CO2 uptake (90 g-1) under ambient conditions. amount MIL-160 remarkably higher than those other two MOFs (86 119 g-1 CAU-10H respectively) same More importantly, both simulation experimental breakthrough results show that sets new benchmark equimolar terms potential (Δqbreak = 5.02 mol/kg) productivity (6.8 mol/kg). In addition, situ FT-IR experiments computational modeling further reveal unique host-guest multiple interaction key factor achieving extraordinary superior selectivity. This work provides powerful approach extremely gas separation.

Language: Английский

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