Discerning molecular-level CO₂ adsorption behavior in amine-modified sorbents within a controlled CO₂/H₂O environment towards direct air capture

Abstract

CO 2 adsorption is influenced by its concentration and H 2 O presence. While concentration governs chemisorbed species formation, H 2 O significantly impacts CO 2 adsorption capacity, especially under dilute conditions mimicking direct air capture (DAC).