Publications by authors named "Jeongho Seong"
Porous coordination polymers with excellent molecular sieving ability, high dispersibility, and good compatibility with engineered polymer matrices hold promise for various industrial applications, such as gas separation and battery separators. Here, an in situ defect engineering approach is proposed for highly processable cobalt (Co)-based zeolitic imidazolate frameworks (ZIFs) with enhanced molecular sieving ability and water stability. By varying alkylamine (AA) modulators, the pore structures and textural properties of ZIFs can be fine-tuned.
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- * A novel method is introduced using dual defective alkylamine-modulated zeolitic imidazolate framework-8 (DAZIF-8) with specific zinc ligands that enhance coordination and performance.
- * The resulting polyimide/DAZIF-8 MMM shows a remarkable increase in ethylene permeability while maintaining selectivity, exceeding traditional limits for ethylene/ethane separation.
Article Synopsis
- Researchers developed a new method to create zeolitic imidazolate framework (ZIF) nanoparticles called Sogang ZIF-8 (SZIF-8) to improve separation of C2H6/C2H4 gases.
- SZIF-8 is made with zinc metals coordinated with three ligands—tri-butyl amine (TBA), 2,4-dimethylimidazole (DIm), and 2-methylimidazole (MIm)—and varying amounts of DIm lead to better coordination and reduced motion, enhancing its effectiveness.
- When combined with a polyimide (6FDA), the SZIF-8(13) membrane achieved impressive C2H6 permeability and selectivity