Nonpolar microporous Metal-Organic framework decorated with multiple functional sites for efficient Ethane/Ethylene separation

Separation and Purification Technology, Год журнала: 2025, Номер 354, С. 128696 - 128696

Опубликована: Фев. 1, 2025

Язык: Английский

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A Highly Stable Anion-Functionalized Cage-like Framework for Efficient Separation of MTO Products under Harsh Conditions

ACS Materials Letters, Год журнала: 2025, Номер unknown, С. 837 - 844

Опубликована: Фев. 3, 2025

Язык: Английский

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Leveraging Surface Polarity in a Cost‐Effective Metal–Organic Framework for Olefin Purification From Methanol‐to‐Olefin Products

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 26, 2025

Abstract Research over the years has revealed immense potential of metal–organic frameworks (MOFs) for purifying olefins such as ethylene (C 2 H 4 ) and propylene 3 6 ). However, many these MOFs face challenges in terms economic viability, particularly production scalability, long‐term stability, process capability. In this study, we present a low‐cost easily scalable synthesis robust MOF material (JNU‐74a), featuring balanced surface polarity that allows one‐step C purification from methanol‐to‐olefin (MTO) products. By incorporating highly electronegative atoms on nonpolar surface, JNU‐74a exhibits substantially larger absorption capacity stronger binding affinity ethane compared to , evidenced by their gas adsorption isotherms heats measurements. In‐depth analyses through situ single‐crystal X‐ray diffraction (SCXRD) gas@JNU‐74a unveil multiple supramolecular bindings favor confirming preferential . Breakthrough experiments demonstrate can efficiently produce polymer‐grade (≥99.95%) (≥99.5%) /C mixtures different ratios single adsorption‐desorption cycle. With its impressive separation capability, high chemical cost‐effective production, holds promise olefin MTO products other challenging industrial separations.

Язык: Английский

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Efficient separation of methanol-to-olefins products using a metal-organic framework with supramolecular binding sites

Chemical Engineering Journal, Год журнала: 2024, Номер 493, С. 152442 - 152442

Опубликована: Май 21, 2024

Язык: Английский

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Green synthesis and performance of micro-mesoporous ZSM-5/Y composite zeolite with hierarchical pore structure for vacuum gas oil (VGO) catalytic cracking

Chemical Engineering Journal, Год журнала: 2025, Номер 506, С. 159701 - 159701

Опубликована: Янв. 1, 2025

Язык: Английский

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Substituent Modulation of Structures, Luminescence, and TNP Sensing Abilities for Coordination Polymers

Crystal Growth & Design, Год журнала: 2024, Номер 24(17), С. 7141 - 7150

Опубликована: Авг. 22, 2024

The modulation of coordination polymers (CPs) with specific structures and functions is greatly challenging. This work explores the function substituent in structures, luminescence, sensing abilities for CPs. Compared 4,4′-((9H-fluoren-9-ylidene)-methylene)dipyridine (L-2), a new aggregate-induced emission (AIE) molecule 4,4′-((2,7-di-tert-butyl-9H-fluoren-9-ylidene)-methylene)dipyridine (L-1) two tert-butyl substituents was successfully synthesized. L-1 L-2 were developed as functional ligands to construct distinct one-dimensional (1-D) double-chain CPs [Cd(L-1)(2,5-TDC)(H2O)]n (1) [Cd(L-2)(2,5-TDC)(H2O)]n (2) through very similar synthetic routes. 1 fabricated by linking 2,5-TDC-Cd single chains form architecture. Meanwhile, 2 has skeleton terminal ligands. have good water thermal stabilities but show different luminescent properties. 1, an obviously enhanced TNP ability. quenching constant (4.5 × 104 M–1) toward nearly three times higher than that (1.55 1. detection limit (5.27 10–4 mM) about order magnitude lower (4.67 10–3 mechanism performance explored detail.

Язык: Английский

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An MOF-Based Single-Molecule Propylene Nanotrap for Benchmark Propylene Capture from Ethylene

Chem & Bio Engineering, Год журнала: 2024, Номер 1(11), С. 952 - 959

Опубликована: Июль 29, 2024

Highly selective capture and separation of propylene (C3H6) from ethylene (C2H4) presents one the most crucial processes to obtain pure C2H4 in petrochemical industry. The performance current physisorbents is commonly limited by insufficient C3H6 binding affinity, resulting poor low-pressure uptakes or inadequate C3H6/C2H4 selectivities. Herein, we realize a unique single-molecule nanotrap an ultramicroporous MOF material (Co(pyz)[Pd(CN)4], ZJU-74a-Pd), exhibiting benchmark capacity at regions. This MOF-based features sandwichlike strong multipoint sites perfect size match with molecules, providing ultrastrong affinity maximal Q st value (55.8 kJ mol-1). affords exhibit highest low pressures (60.5 103.8 cm3 cm-3 0.01 0.1 bar) record-high selectivity (23.4). Theoretical calculations reveal that perfectly size-matched pore cavities combined multibinding enable this maximize mainly accounting for its record selectivity. Breakthrough experiments further confirm excellent actual 1/99 50/50 mixtures, affording remarkably high productivities 17.1 3.4 mol kg-1, respectively.

Язык: Английский

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Scale-up synthesis of a low-cost cobalt formate framework for efficient C3H6/C2H4 separation and shaping performance study

Separation and Purification Technology, Год журнала: 2024, Номер unknown, С. 130638 - 130638

Опубликована: Ноя. 1, 2024

Язык: Английский

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New Co-MOF adsorption material with pharynx-shaped channel and large cavity for record ethylene and propylene purification

Science China Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 12, 2024

Язык: Английский

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Cobalt-Cluster-Based Metal–Organic-Framework-Catalyzed Carboxylative Cyclization of Propargylic Amines with CO₂ from Flue Gas

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 27, 2025

The fixation of carbon dioxide (CO2) directly from flue gas into valuable chemicals like 2-oxazolidinones is great significance for economic and environmental benefits, which typically catalyzed by noble-metal catalysts under harsh conditions. Herein, a novel 2-fold interpenetrated framework {[Co3(μ2-O)(TCA)2(HDPTA)2]·2H2O·2DMF}n [Co(II)-based metal-organic (Co-MOF)] containing [Co3] clusters highly dense amino groups (-NH2) dispersed in the channel was prepared, exhibiting high solvent/pH stability CO2 adsorption capacity (24.9 cm3·g-1). Catalytic experiments demonstrated that Co-MOF could catalyze carboxylative cyclization propargylic amines to generate with yields up 98% mild conditions gas. In addition, retained its structure catalytic activity after five-cycle experiments, showing promising practical application. Density functional theory (DFT) calculation suggested centers MOF activated C≡C much more binding energy than Co(NO3)2, partly accounting Co-MOF. This work demonstrates first Co-based material efficient as source, inspiring further rational design porous utilization.

Язык: Английский

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