Analysis of CO2 adsorption in polymer-MOF compounds
OA Version
Citation
Abstract
Despite a drastic increase in resources dedicated to the study of metal-organic frameworks (MOF) in recent years, MOFs utilized for direct air capture (DAC) of CO2 are still considered to be inefficient at large scale atmospheric CO2 removal. To date, less than 10% of papers published on MOFs used for CO2 capture focus on DAC applications 1. Studies of MOF performance in simulated real-world environments are even more sparse in academic literature. In this thesis the effects of polystyrene binder additives on the CO2 adsorption capacities of amine appended Mg2(dobpdc) are analyzed experimentally with the goal of developing an optimized MOF coating that will improve efficiency and longevity in existing DAC technologies. The total CO2 adsorption capacity of tetraamine appended Mg2(dobpdc) is analyzed via thermogravimetric analysis (TGA) and with a dynamic gas sorption reactor (DGS). The DGS was designed and constructed by researchers within the Lubner Group, for the purpose of measuring CO2 adsorption capacity and kinetics of adsorption in Mg2(dobpdc) coated samples. The results show a negative correlation between polystyrene content in tetraamine appended Mg2(dobpdc) based coatings and CO2 uptake capacity under humid conditions.
Description
2026
License
Attribution 4.0 International