A tremendous attention has been recently paid to the selective capture and separation of carbon dioxide because of the anthropogenic carbon dioxide emissions. Membrane-based gas separation is considered to be one of the most promising candidates due to its lower energy costs, a small footprint, and high reliability. In this study, a porous, nitrogen-doped adsorption/diffusion carbonaceous membrane (TFMT-550) was facilely prepared from triazole-functionalized-triazine-framework??  , exhibiting a good membrane separation performance of CO2 over N2 and surpassing the recent upper bound. An exceptional ideal CO2/N2 permselectivity of 47.5 was achieved with a good CO2 permeability of 718 barrer based on the strong dipole-quadrupole interactions between the large quadrupole moment of CO2 molecules and the polar sites associated with N groups (e.g., triazine units) within the framework.Acknowledgment: Research sponsored by the Office of Basic Energy Sciences, U.S. Department of Energy.??

Facile synthesis of porous, nitrogen-doped adsorption/diffusion carbonaceous membranes for efficient CO<sub>2</sub> separation

245th National Meeting (2013)

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Facile synthesis of porous, nitrogen-doped adsorption/diffusion carbonaceous membranes for efficient CO2 separation

Facile synthesis of porous, nitrogen-doped adsorption/diffusion carbonaceous membranes for efficient CO₂ separation