NMR PROBES CARBON CAPTURE MATERIALS

Carbon capture by adsorption onto surfaces represents one of the more promising platforms to mitigate anthropogenic emissions of carbon into the atmosphere. The design and analysis of adsorbents is informed by a molecular understanding of how CO2 interacts with these materials, particularly in the presence of water at temperatures and pressures associated with the panoply of flue gas conditions. This is particularly true in the context of direct air capture with ~420ppm of CO2. Herein I will present solid-state and pulsed field gradient NMR results that reveal the reaction and transport of CO2 in these materials, portending pilot scale studies at modest scale.