Novel Porous Organic Polymers and their Metal Composites for Carbon Dioxide Capture and Conversion into Value Added Products

The development of new solid sorbent materials for the capture and conversion of carbon dioxide is of a target worth perusing due to the environmental and energy crisis. Here, we propose the development of a series of porous organic polymers (POPs) will be synthesized via the azo coupling reactions of aromatic diamines and 1,3,5-trihydroxy benzene and 1,3,5-benzenetriamine. Metal-POPs will be prepared by impregnating the resulting Azo-POPs with different salts of Zn, Co, Ni, Fe, Cr, and Zr. The synthesized Azo-POPs and metal-POPs will be structurally characterized using solid-state 13C NMR, FTIR, and elemental analysis. The metal contents of the metal-POP will be determined using ICP. The thermal stability of the synthesized materials will be investigated using thermogravimetric analysis (TGA) and differential scanning calorimeter (DSC). The surface area and pore structure of the devolved materials will be investigated using nitrogen sorption isotherms at 77K. The developed materials will be evaluated for carbon dioxide capture from different gas streams. Furthermore, the catalytic performance of the materials will be tested for the cycloaddition of CO2 to epoxides forming cyclic carbonates. Based on the selected monomer structures, the structure-activity relationship of the newly developed materials will be studied to generalize a big picture on how to design an ideal porous polymeric material with optimum performance for the selective CO2 capture and conversion into cyclic carbonates