The chemistry of CO2 capture in an amine-functionalized metal-organic framework under dry and humid conditions

• Autores: Flaig, Robinson W.; Osborn Popp, Thomas M.; Fracaroli, Alejandro Matías; Kapustin, Eugene A.; Kalmutzki, Markus J.; Altamimi, Rashid M.; Fathieh, Farhad; Reimer, Jeffrey A.; Yaghi, Omar M.
• Año de publicación: 2017
• Idioma: inglés
• Tipo de recurso: artículo
• Materia: Metal Organic Frameworks; Selective Co2 Capture; Amine Functionalization
• Institución: Consejo Nacional de Investigaciones Científicas y Técnicas

The use of two primary alkylamine functionalities covalently tethered to the linkers of IRMOF-74-III results in a material that can uptake CO2 at low pressures through a chemisorption mechanism. In contrast to other primary amine-functionalized solid adsorbents that uptake CO2 primarily as ammonium carbamates, we observe using solid state NMR that the major chemisorption product for this material is carbamic acid. The equilibrium of reaction products also shifts to ammonium carbamate when water vapor is present; a new finding that has impact on control of the chemistry of CO2 capture in MOF materials and one that highlights the importance of geometric constraints and the mediating role of water within the pores of MOFs.
Fil: Flaig, Robinson W.. University of California at Berkeley; Estados Unidos
Fil: Osborn Popp, Thomas M.. University of California at Berkeley; Estados Unidos
Fil: Fracaroli, Alejandro Matías. University of California at Berkeley; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Kapustin, Eugene A.. University of California at Berkeley; Estados Unidos
Fil: Kalmutzki, Markus J.. University of California at Berkeley; Estados Unidos
Fil: Altamimi, Rashid M.. King Abdulaziz City for Science and Technology; Arabia Saudita
Fil: Fathieh, Farhad. University of California at Berkeley; Estados Unidos
Fil: Reimer, Jeffrey A.. University of California at Berkeley; Estados Unidos. Lawrence Berkeley National Laboratory; Estados Unidos
Fil: Yaghi, Omar M.. University of California at Berkeley; Estados Unidos. King Abdulaziz City for Science and Technology; Arabia Saudita