Work

A Naphthalene-Based Three-Dimensional Covalent Organic Framework with acs Topology for Highly Selective Sulfur Hexafluoride Capture

Year: 2025

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide Three-dimensional covalent organic frameworks (3D COFs) have emerged as a promising yet underexplored class of porous materials for the selective adsorption of sulfur hexafluoride (SF 6 ). Herein, we report a microporous 3D COF (3D-TMTAPB-NDA-COF) constructed from a 6-connected polyhedral node and a naphthalene-based linear linker. Structural analysis confirms that 3D-TMTAPB-NDA-COF adopts an acs topology with Class IIIa interpenetration. Notably, the COF exhibits a high SF 6 uptake of 39.5 cm 3 g –1 at 298 K and an exceptional SF 6 /N 2 (10/90) selectivity of 359 at 1 bar, representing the highest value reported among purely organic porous materials. This work not only introduces a high-performance candidate for selective SF 6 capture but also provides valuable insights into the rational design of functional 3D COFs for advanced gas adsorption and separation applications.

Source: Polymer science & technology.

DOI: 10.1021/polymscitech.5c00098

Authors: Xu Zhou, Shize Hu, Ya Zhang, Ying Yin, Bo Gui, Cheng Wang

Institution: Wuhan University

Language: English

Topic: Covalent Organic Framework Applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: diamond

Funders: National Natural Science Foundation of China, Natural Science Foundation of Hubei Province, Wuhan University, Fujian Institute of Research on the Structure of Matter

Awards: G2448083850, G2775503351, G4497202314, G4788517620, G7229938805