TY - JOUR
T1 - Influence of the Amide Groups in the CO2/N2 Selectivity of a Series of Isoreticular, Interpenetrated Metal-Organic Frameworks
AU - Safarifard, Vahid
AU - Rodríguez-Hermida, Sabina
AU - Guillerm, Vincent
AU - Imaz, Inhar
AU - Bigdeli, Mina
AU - Tehrani, Alireza Azhdari
AU - Juanhuix, Jordi
AU - Morsali, Ali
AU - Casco, Mirian E.
AU - Silvestre-Albero, Joaquín
AU - Ramos-Fernandez, Enrique V.
AU - Maspoch, Daniel
PY - 2016/10/5
Y1 - 2016/10/5
N2 - © 2016 American Chemical Society. Here we report the use of a pillaring strategy for the design and synthesis of three novel amide-functionalized metal-organic frameworks (MOFs), TMUs-22/-23/-24, isoreticular to the recently reported imine-functionalized TMU-6 and TMU-21 MOFs. An extensive study of their CO2 sorption properties and selectivity for CO2 over N2, from single gas sorption isotherms to breakthrough measurements, revealed that not only the incorporation of amide groups but also their accessibility is crucial to obtain enhanced CO2 sorption and CO2/N2 selectivity. Therefore, the MOF with more accessible amide groups (TMU-24) shows a CO2/N2 selectivity value of ca. 10 (as revealed by breakthrough experiments), which is ca. 500% and 700% of the selectivity values observed for the other amide-containing (TMU-22 and TMU-23) and imine-containing (TMU-6 and TMU-21) MOFs.
AB - © 2016 American Chemical Society. Here we report the use of a pillaring strategy for the design and synthesis of three novel amide-functionalized metal-organic frameworks (MOFs), TMUs-22/-23/-24, isoreticular to the recently reported imine-functionalized TMU-6 and TMU-21 MOFs. An extensive study of their CO2 sorption properties and selectivity for CO2 over N2, from single gas sorption isotherms to breakthrough measurements, revealed that not only the incorporation of amide groups but also their accessibility is crucial to obtain enhanced CO2 sorption and CO2/N2 selectivity. Therefore, the MOF with more accessible amide groups (TMU-24) shows a CO2/N2 selectivity value of ca. 10 (as revealed by breakthrough experiments), which is ca. 500% and 700% of the selectivity values observed for the other amide-containing (TMU-22 and TMU-23) and imine-containing (TMU-6 and TMU-21) MOFs.
U2 - 10.1021/acs.cgd.6b01054
DO - 10.1021/acs.cgd.6b01054
M3 - Article
SN - 1528-7483
VL - 16
SP - 6016
EP - 6023
JO - Crystal Growth and Design
JF - Crystal Growth and Design
IS - 10
ER -