Mechanochemical "Cage‐on‐MOF” Strategy for Enhancing Gas Adsorption and Separation through Aperture Matching DOI
Liang Yu,

Gongfu Xie,

Kang‐Kai Liu

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 137(1)

Published: Sept. 14, 2024

Abstract Post‐modification of porous materials with molecular modulators has emerged as a well‐established strategy for improving gas adsorption and separation. However, notable challenge lies in maintaining porosity the limited applicability current method. In this study, we employed mechanochemical “Cage‐on‐MOF” strategy, utilizing coordination cages (PCCs) intrinsic pores apertures surface to improve separation properties parent MOFs. We demonstrated fast facile preparation 28 distinct MOF@PCC composites by combining 7 MOFs 4 PCCs varying aperture sizes exposed functional groups through reaction 5 mins. Only combinations closely matched exhibited enhanced performance. Specifically, MOF‐808@PCC‐4 significantly increased C 2 H uptake (+64 %) longer CO /C retention time (+40 %). MIL‐101@PCC‐4 achieved substantial capacity 6.11 mmol/g. This work not only highlights broad functionalization wide range but also establishes potential design principles development hybrid capabilities, along promising applications catalysis intracellular delivery.

Language: Английский

Efficient continuous SF6/N2 separation using low-cost and robust metal-organic frameworks composites DOI Creative Commons
Jinjian Li,

Yuting Chen,

Tian Ke

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 13, 2025

Physisorption presents a promising alternative to cryogenic distillation for capturing the most potent greenhouse gas, SF6, but existing adsorbents face challenges in meeting diverse chemical and engineering concerns. Herein, with insights into in-pore chemistry industrial process design, we report systematic investigation that constructed two low-cost composites pellets (Al(fum)@2%HPC Al(fum)@5%Kaolin) coupled an innovative two-stage Vacuum Temperature Swing Adsorption (VTSA) ultra-efficient recovery of low-concentration SF6 from N2. Record-high selectivities (> 2×104) dynamic capacities (~ 2.7 mmol/g) were achieved, while exceptional productivities 58.7 L/kg), yields 96.8%), recyclability 1000 cycles) demonstrated fixed-bed adsorption-desorption experiments under mild regeneration conditions. 2D solid-state NMR/in-situ FTIR, DFT-D binding/diffusion simulation analyses revealed multi-site binding mode ultra-fast diffusion within channels. The proposed VTSA processes successfully met dual stringent requirements both environmental protection electricity equipment operation: 99.91% accompanied purity/working capacity 99.91%/2.1 mmol/g, which significantly outperformed employed adsorbent zeolite 13X showed only 18.7% energy consumption distillation. SF6/N2 separation is crucial sustainable development. Here, authors prepared robust MOF composite established vacuum temperature swing adsorption high purity SF6.

Language: Английский

Citations

3
Mechanochemical "Cage‐on‐MOF” Strategy for Enhancing Gas Adsorption and Separation through Aperture Matching DOI
Liang Yu,

Gongfu Xie,

Kang‐Kai Liu

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 64(1)

Published: Sept. 14, 2024

Abstract Post‐modification of porous materials with molecular modulators has emerged as a well‐established strategy for improving gas adsorption and separation. However, notable challenge lies in maintaining porosity the limited applicability current method. In this study, we employed mechanochemical “Cage‐on‐MOF” strategy, utilizing coordination cages (PCCs) intrinsic pores apertures surface to improve separation properties parent MOFs. We demonstrated fast facile preparation 28 distinct MOF@PCC composites by combining 7 MOFs 4 PCCs varying aperture sizes exposed functional groups through reaction 5 mins. Only combinations closely matched exhibited enhanced performance. Specifically, MOF‐808@PCC‐4 significantly increased C 2 H uptake (+64 %) longer CO /C retention time (+40 %). MIL‐101@PCC‐4 achieved substantial capacity 6.11 mmol/g. This work not only highlights broad functionalization wide range but also establishes potential design principles development hybrid capabilities, along promising applications catalysis intracellular delivery.

Language: Английский

Citations

5
Pore Engineering in Metal–Organic Frameworks for Enhanced Hydrocarbon Adsorption and Separation DOI
Xiao‐Jing Xie,

Min-Yi Zhou,

Heng Zeng

et al.

Accounts of Materials Research, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 8, 2025

ConspectusThe separation and purification of hydrocarbons are crucially important processes in the petrochemical industry, as they essential for producing high-quality chemicals fuels. However, traditional thermal-driven practices, such cryogenic distillation, notoriously energy-intensive, accounting a notable portion energy consumption industrial operations. This has spurred exploration development low-energy sustainable alternative technologies, among which adsorption/desorption-based with porous materials gained significant attention. Metal–organic frameworks (MOFs) emerging ideal hydrocarbon due to their exceptional porosity structural tunability. Account delves into latest advancements microporous MOFs separation, categorizing them based on pore structures: single array, tandem orthogonal array. Single-array feature uniformly arranged channel-like pores along axial direction, facilitating incorporation binding sites surfaces. One functional group used these applications is open metal (OMSs), can engage strong metal-π interactions unsaturated acetylene. For example, JNU-1 demonstrates increased increasing pressure acetylene induce-fit effect, where framework contraction behavior triggered by its OMSs. JNU-4 offers two per center molecules, greatly improving adsorption capacity. On other hand, introducing low-polarity groups, seen JNU-6-CH3, effectively enhance performance favor alkanes while maintaining integrity under humid conditions. Another methyl group-modified MOF, JNU-5-CH3, exhibits an acetylene-triggered gate-opening effect multiple supramolecular Tandem-array provide enhanced selectivity capacity through interconnection spacious cavities narrow apertures. instance, JNU-2 pore-channel interconnected structure improved efficiency C2H6/C2H4 hexane isomers. The slim channels connecting large act screening matching-sized molecules pass through, function storage Orthogonal-array MOFs, like JNU-3a, one-dimensional (1D) that enable rapid diffusion, complemented molecular pockets both sides facilitate selective recognition. dynamic "gourd-shaped" opening pocket adaptability when interacting different hydrocarbons, allowing sieving-like propylene/propane, well efficient ethylene from mixtures alkynes various sizes. Overall, designability tunability MOF structures make promising candidates discriminating targeted multicomponent mixtures, offering energy-efficient solutions challenging separations.

Language: Английский

Citations

0
Zinc-Based flexible coordination network for precise butane isomer sieving and low-carbon alkane recovery from oilfield associated gas DOI
Yitao Li, W. D. Li, Liping Zhang

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132018 - 132018

Published: Feb. 1, 2025

Language: Английский

Citations

0
Novel Cage-Based Metal−Organic Frameworks for Efficient Separation of Light Hydrocarbons DOI
Muhammad Riaz,

Dinesh Acharya,

Hongxu Chu

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(41), P. 28541 - 28547

Published: Jan. 1, 2024

A novel 3D MOF, SDU-CP-8, features an ellipsoid-shaped cage and a 3-nodal, (4,6,8)-connected network. It demonstrates excellent adsorption separation capabilities for C 3 H 8 /C 2 6 /CH 4 /CO gas mixtures.

Language: Английский

Citations

3
A Chemically Robust Microporous Zn‐MOF for C2H2 Separation from CO2 and Industrially Relevant Four Component Gas Mixtures DOI Creative Commons
Bikram Pramanik, Rupam Sahoo, Rajamani Krishna

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 23, 2024

Abstract The separation and purification of acetylene from the light hydrocarbon gas mixtures is considered as one most industrially challenging task for production fine chemicals. Though metal–organic frameworks (MOFs) are promising candidates such offer a cost energy‐efficient pathway, achieving trade‐off between sorption capacity selectivity along with framework robustness daunting demands effective design. Herein, new 3D chemically stable MOF, IITKGP‐24 (stable over wide range aqueous pH solution, = 2–12) developed, displaying excellent 13.9 C 2 H /CO (50:50) even at ambient conditions maintained selectivity. Most importantly, breakthrough performance analysis under relevant mixture composition revealed that developed possesses not only but also quaternary /C 4 6 (25:25:25:25) feed streams. Separation four component by MOFs unexplored. exceptional robustness, high uptake ratio, low heat adsorption, recyclability easy regenerability made candidate toward this separation.

Language: Английский

Citations

3
Metal‐Organic Frameworks: A Solution for Greener Polymeric Materials with Low Fire Hazards DOI

Xiuhong Sun,

W.F. Miao,

Ye‐Tang Pan

et al.

Advanced Sustainable Systems, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 5, 2024

Abstract The non‐degradability of polymeric materials and the flammability their products have resulted in significant environmental pollution. Metal‐organic frameworks (MOFs) serve as innovative flame retardants, featuring a high specific surface area, ample pore volume, customizable structure. By leveraging structural adjustability MOFs, biological modifiers containing retardant elements can be integrated into thereby ensuring retardation while imparting biodegradable properties. Moreover, issue material pollution effectively addressed by utilizing MOFs retardants within renewable polymer matrices. Recently, an increasing number researchers concentrated on developing green flame‐retardant using MOFs. However, far is known, no comprehensive review polymers with minimal fire risk produced currently exists. Consequently, this study reviews recent advancements development covering preparation utilization bio‐based recyclable Additionally, matrix based also synthesized. Furthermore, anticipates discussing benefits drawbacks associated to manufacture products. This work aims assist rapidly comprehending most field guiding efficient design.

Language: Английский

Citations

2
From pore to process: ultra-efficient SF6/N2 continuous separation using inexpensive robust MOF composites DOI Creative Commons
Qiwei Yang, Jinjian Li,

Yuting Chen

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: May 30, 2024

Abstract Physisorption presents a promising alternative to cryogenic distillation for capturing the most potent greenhouse gas, SF6, but existing adsorbents face challenges in meeting diverse chemical and engineering concerns. Herein, with insights into in-pore chemistry industrial process design, we report systematic investigation that constructed two novel low-cost composites pellets (Al(fum)@2%HPC Al(fum)@5%Kaolin) coupled an innovative two-stage Vacuum Temperature Swing Adsorption (VTSA) ultra-efficient recovery of low-concentration SF6 from N2. Record-high selectivities (> 2×104) dynamic capacities (~2.7 mmol/g) were achieved, while exceptional productivities (~58.7 L/kg), yields (~96.8%), recyclability (~1000 cycles) demonstrated fixed-bed adsorption-desorption experiments under mild regeneration conditions. 2D solid-state NMR/in-situ FTIR, DFT-D binding/diffusion simulation analyses revealed multi-site binding mode ultra-fast diffusion within channels. The proposed VTSA processes successfully met dual stringent requirements both environmental protection electricity equipment operation: 99.91% accompanied purity/working capacity 99.91%/2.1 mmol/g, which significantly outperformed employed adsorbent zeolite 13X showed only 19% energy consumption distillation.

Language: Английский

Citations

0
Mechanochemical "Cage‐on‐MOF” Strategy for Enhancing Gas Adsorption and Separation through Aperture Matching DOI
Liang Yu,

Gongfu Xie,

Kang‐Kai Liu

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 137(1)

Published: Sept. 14, 2024

Abstract Post‐modification of porous materials with molecular modulators has emerged as a well‐established strategy for improving gas adsorption and separation. However, notable challenge lies in maintaining porosity the limited applicability current method. In this study, we employed mechanochemical “Cage‐on‐MOF” strategy, utilizing coordination cages (PCCs) intrinsic pores apertures surface to improve separation properties parent MOFs. We demonstrated fast facile preparation 28 distinct MOF@PCC composites by combining 7 MOFs 4 PCCs varying aperture sizes exposed functional groups through reaction 5 mins. Only combinations closely matched exhibited enhanced performance. Specifically, MOF‐808@PCC‐4 significantly increased C 2 H uptake (+64 %) longer CO /C retention time (+40 %). MIL‐101@PCC‐4 achieved substantial capacity 6.11 mmol/g. This work not only highlights broad functionalization wide range but also establishes potential design principles development hybrid capabilities, along promising applications catalysis intracellular delivery.

Language: Английский

Citations

0