(65ag) Characterization and Activation Temperature Modification of Flexible Nanopourous Sorbents

Flexible nanoporous adsorbents can be used for gas purification and storage. CPL-2 and UPRM-4m are two of these materials synthesized in the UPRM NSSAL lab which are selective towards CO2 adsorption. Flexible materials such as these have been shown to be affected by the pre-activation (degas) temperature during post synthesis procedure. In order to further modify the synthesis of these materials for improved efficiency, the optimal degas temperature for each material was determined. CPL-2 has the highest adsorption capacity and surface area while maintaining selectivity after degassing at 1000˚C. Sr-UPRM-4m had the highest surface area after degassing at 900˚C and continued higher adsorption potential over previous, non ion exchanged stages. By determining these optimal degas temperatures, the post-synthesis modification has been improved to maximize the adsorption capacity of each material and therefore improve the potential for applications in purification and storage.