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.
Original language | English |
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Article number | e202402137 |
Journal | Chemistry - A European Journal |
Volume | 30 |
Issue number | 48 |
DOIs | |
State | Published - Aug 27 2024 |
Funding
The research was supported financially by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, US Department of Energy.
Keywords
- Amine sorbents
- CO Chemisorption
- Carbamic acid
- Intermolecular proton transfer
- Supramolecular complexation