Benchmarking selective capture of trace CO2 from C2H2 using an amine-functionalized adsorbent

• Published in: Nature communications Vol. 16; no. 1; pp. 2598 - 11
• Main Authors: Zou, Jin-Sheng, Wang, Zhi-Peng, Andaloussi, Yassin H., Xue, Jiapeng, Zhang, Wanli, Lucier, Bryan E. G., Zhang, Zeyang, Jia, Yanan, Wu, Xue-Cui, Li, Jiahan, Huang, Yining, Zaworotko, Michael J., Chen, Guangjin, Chen, Shoushun, Peng, Yun-Lei
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 16.03.2025; Nature Publishing Group; Nature Portfolio
• Subjects: 639/301/357/1018; 639/638/298/923/1028; 639/638/455/958; Adsorbents; Adsorption; Carbon dioxide; Chemisorption; Density functional theory; Fourier transforms; Humanities and Social Sciences; Infrared spectroscopy; multidisciplinary; NMR; Nuclear magnetic resonance; Physical properties; Polyetherimides; Polyethyleneimine; Resins; Science; Science (multidisciplinary); Selectivity

Purifying C 2 H 2 by removing trace CO 2 is critically needed yet challenged by their analogous physical properties. Herein, we report a commercial resin adsorbent HP20 (Diaion® HP-20 Resin) loaded with polyethyleneimine (PEI@HP20) which selectively captures trace CO 2 and excludes C 2 H 2 . PEI@HP2...