Macromolecular Architecture in the Synthesis of Micro- and Mesoporous Polymers DOI Open Access
И. М. Давлетбаева, O. O. Sazonov

Polymers, Journal Year: 2024, Volume and Issue: 16(23), P. 3267 - 3267

Published: Nov. 24, 2024

Polymers with micro- and mesoporous structure are promising as materials for gas storage separation, encapsulating agents controlled drug release, carriers catalysts sensors, precursors of nanostructured carbon materials, biomolecular immobilization cellular scaffolds, a low dielectric constant, filtering/separating membranes, proton exchange templates replicating structures, electrode energy storage. Sol–gel technologies, track etching, template synthesis used their production, including in micelles surfactants microemulsions sublimation drying. The listed methods make it possible to obtain pores variable shapes sizes 5–50 nm achieve narrow pore size distribution. However, all these technologically multi-stage require the use consumables. This paper presents review macromolecular architecture polymers extremely high surface area hierarchical porous polymers. polymer frameworks individual functional capabilities, required chemical structure, is based on unique possibilities developing matrix.

Language: Английский

Topology-Oriented Assembly of Iron-2,5-Furandicarboxylate Coordination Cubes for Highly Selective CO2/SF6/N2 Capture DOI

Zhang‐Lei Zhong,

Haipeng Li, Wenyu Yuan

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 11, 2025

As typical greenhouse gases, selective capture of CO2 (carbon dioxide) and SF6 (sulfur hexafluoride) is great importance. Herein, on the basis a six-connected pcu topology, three isomorphic Fe-2,5-furandicarboxylate (Fe-FDC) metal–organic framework (MOF) adsorbents (SNNU-133–135) were successfully prepared via rational assembly {[Fe3O]8(FDC)12} cubic building blocks. With dihedral angles in Fe-FDC cubes varying from 80° (SNNU-133), 87° (SNNU-134), to 90°(SNNU-135), MOF isomers show step-by-step enhancement performance. For SNNU-135, at 298 K 1 bar, adsorption capacities for are 83.6 66.7 cm3/g, CO2/N2 SF6/N2 selectivity values up 29.4 509.1, respectively. Furthermore, practical breakthrough interval time SNNU-135 can reach 75 185 min g–1 (298 K, mL min–1, = 15:85 10:90) with captured amounts 1.24 2.34 mmol/g, purity greater than 99.9%. The most regular cubes, all available Fe-OMSs together multiple weak interactions, cause have highest capacity, best performance, one-step separation ability CO2/SF6/N2 ternary mixtures.

Language: Английский

Citations

0
Purification of Xe and SF6 through Adaptive Contractions in a Flexible Metal–Organic Framework DOI
Jia Dai, Zhou Wang,

Jindou Tian

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Overcoming the trade-off effects between adsorption capacity, selectivity, and enthalpy of an adsorbent is very important but remains a huge challenge. Here, we report flexible metal-organic framework (FJI-H36); it can selectively adsorb Xe from Xe/Kr mixtures with high capacity low enthalpy. Structural analyses show that such excellent performances come adaptive contraction framework; pore shrinkage enhance interactions adsorbed offset some heats. For SF6/N2 mixtures, FJI-H36 also performance SF6 through contraction, resulting in both selectivity This not only provides new for purification Xe/Kr/SF6 offers potential solution to overcome trade-offs among specific adsorbent.

Language: Английский

Citations

0
A microporous framework with aromatic pores for one-step purification of C2F6 from CF3CH2F/CF3CHF2/C2F6 mixture DOI

Yongqin Zhu,

Yunzhe Zhou, Zhenyu Ji

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 353, P. 128373 - 128373

Published: June 9, 2024

Language: Английский

Citations

2
Macromolecular Architecture in the Synthesis of Micro- and Mesoporous Polymers DOI Open Access
И. М. Давлетбаева, O. O. Sazonov

Polymers, Journal Year: 2024, Volume and Issue: 16(23), P. 3267 - 3267

Published: Nov. 24, 2024

Polymers with micro- and mesoporous structure are promising as materials for gas storage separation, encapsulating agents controlled drug release, carriers catalysts sensors, precursors of nanostructured carbon materials, biomolecular immobilization cellular scaffolds, a low dielectric constant, filtering/separating membranes, proton exchange templates replicating structures, electrode energy storage. Sol–gel technologies, track etching, template synthesis used their production, including in micelles surfactants microemulsions sublimation drying. The listed methods make it possible to obtain pores variable shapes sizes 5–50 nm achieve narrow pore size distribution. However, all these technologically multi-stage require the use consumables. This paper presents review macromolecular architecture polymers extremely high surface area hierarchical porous polymers. polymer frameworks individual functional capabilities, required chemical structure, is based on unique possibilities developing matrix.

Language: Английский

Citations

1