A scalable solid-state nanoporous network with atomic-level interaction design for carbon dioxide capture. uri icon

abstract

  • Carbon capture and sequestration reduces carbon dioxide emissions and is critical in accomplishing carbon neutrality targets. Here, we demonstrate new sustainable, solid-state, polyamine-appended, cyanuric acid-stabilized melamine nanoporous networks (MNNs) via dynamic combinatorial chemistry (DCC) at the kilogram scale toward effective and high-capacity carbon dioxide capture. Polyamine-appended MNNs reaction mechanisms with carbon dioxide were elucidated with double-level DCC where two-dimensional heteronuclear chemical shift correlation nuclear magnetic resonance spectroscopy was performed to demonstrate the interatomic interactions. We distinguished ammonium carbamate pairs and a mix of ammonium carbamate and carbamic acid during carbon dioxide chemisorption. The coordination of polyamine and cyanuric acid modification endows MNNs with high adsorption capacity (1.82 millimoles per gram at 1 bar), fast adsorption time (less than 1 minute), low price, and extraordinary stability to cycling by flue gas. This work creates a general industrialization method toward carbon dioxide capture via DCC atomic-level design strategies.

published proceedings

  • Sci Adv

altmetric score

  • 252.018

author list (cited authors)

  • Mao, H., Tang, J., Day, G. S., Peng, Y., Wang, H., Xiao, X., ... Reimer, J. A.

citation count

  • 10

complete list of authors

  • Mao, Haiyan||Tang, Jing||Day, Gregory S||Peng, Yucan||Wang, Haoze||Xiao, Xin||Yang, Yufei||Jiang, Yuanwen||Chen, Shuo||Halat, David M||Lund, Alicia||Lv, Xudong||Zhang, Wenbo||Yang, Chongqing||Lin, Zhou||Zhou, Hong-Cai||Pines, Alexander||Cui, Yi||Reimer, Jeffrey A

publication date

  • August 2022