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Enhancement of CO2 Selectivity in a Pillared PCU MOM Platform through Pillar Substitution

Background: The University of South Florida has synthesized the first porous materials that use TiF62– and SnF62– anions as pillars. These compounds exhibit high carbon dioxide (CO2) absorption capacity and selectivity under ambient conditions. Technology Description: Growing concerns on the impact of world wide usage of carbon based fuels on climate change has spurred interest in developing more efficient carbon capture technologies. This has led to an expansion of research in the field of porous metal organic materials (MOMs) which are particularly suited to elucidate the structural features that promote selective CO2 adsorption. MOM platforms can facilitate tailoring of pore size and functionality to selectively target a chosen adsorbate. This is accomplished through structural tuning of MOM platforms by variations in the framework composition. These modifications offer enhanced CO2 capacity and selectivity relative to the vast majority of MOMs. Our inventors have utilized pillar substitution in a long-known MOM platform to develop two new variants TIFSIX-1-Cu and SNIFSIX-1-Cu which represent the first 3D nets containing TiF62– and SnF62– moieties. These MOMs are synthesized and activated at room temperature from low cost commercially available starting materials and have exceptional CO2/CH4 relative uptake and CO2 uptake. Both variants have improved surface area and show promising gas adsorption capabilities. Applications: Carbon based fuels


1) Synthesized from low cost commercially available starting materials 2) Exhibit high CO2 capacity and selectivity 3) Lower activation and regeneration temperatures

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