- By:
- Li, Errui; Li, Bo; Ganesan, Arvind ; Qiu, Liqi; JIang, De-en; Mahurin, Shannon M; Pramanik, Subhamay ; Popovs, Ilja ; Yang, Zhenzhen ; Dai, Sheng
- Journal Name:
- Chemistry A European Journal
- Volume:
- 30
- Issue Number:
- 48
- Publication Date:
- September 6, 2024
- View DOI Listing:
- https://doi.org/10.1002/chem.202402137
Abstract
A supramolecular complexation approach is developed to improve the CO2 chemisorption performance of solvent-lean amine sorbents. Operando spectroscopy techniques reveal the formation of carbamic acid in the presence of a crown ether. The reaction pathway is confirmed by theoretical simulation, in which the crown ether acts as a proton acceptor and shuttle to drive the formation and stabilization of carbamic acid. Improved CO2 capacity and diminished energy consumption in sorbent regeneration are achieved.
