Journal
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE
Volume 64, Issue -, Pages -Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.cocis.2023.101690
Keywords
CO2 capture; Solid adsorbents; Solid-state NMR; Chemisorp- tion; Physisorption
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Global CO2 emissions from fossil fuel combustion reached a historic high of 36.3 gigatonnes in 2021, posing a significant environmental threat. The development of porous materials for gas storage and capture, particularly carbon capture and storage, has gained great interest due to its potential in mitigating atmospheric CO2 concentrations. Atomic-scale studies using spectroscopic techniques have been explored in the last 5 years to investigate the structure and molecular dynamics of CO2 species formed at porous surfaces, providing insights for the design of better CO2 adsorbents.
Reaching a historic high of 36.3 gigatonnes in 2021, global CO2 emissions from fossil fuel combustion continue to increase at an alarming rate. CO2 removal technologies are part of the solution to tackle this crucial environmental challenge. Thus, the devel-opment of porous materials for storage and capture of gas mol-ecules (in particular, carbon capture and storage) has attracted great interest both in academic and industrial communities due to its potential in mitigating atmospheric CO2 concentrations. Atomic-scale studies in porous materials are essential to stimulate progress in the design of better CO2-adsorbents by elucidating gas-sorption surface mechanisms. Spectroscopic techniques have the potential to shed light on the structural details of distinct materials' surfaces, including the type of chemical species formed upon CO2 adsorption. Herein, we review the last 5 years of scientific developments wherein solid-state NMR and computational studies have been explored to investigate at the atomic level the structure and molecular dynamics of CO2 species formed at porous surfaces.
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