TY - JOUR
T1 - Molecular Sieving and Direct Visualization of CO2 in Binding Pockets of an Ultramicroporous Lanthanide Metal-Organic Framework Platform
AU - Han, Lin
AU - Pham, Tony
AU - Zhuo, Mingjing
AU - Forrest, Katherine A.
AU - Suepaul, Shanelle
AU - Space, Brian
AU - Zaworotko, Michael J.
AU - Shi, Wei
AU - Chen, Yao
AU - Cheng, Peng
AU - Zhang, Zhenjie
N1 - Publisher Copyright:
© 2019 American Chemical Society.
PY - 2019/7/3
Y1 - 2019/7/3
N2 - Inspired by the structure of carbonic anhydrase, we developed a robust ultramicroporous lanthanide metal-organic framework (MOF) platform (NKMOF-3-Ln), which possesses a porous pocket to selectively bind with CO2 at ambient conditions. Notably, CO2 molecules can be precisely observed in the single-crystal structure of NKMOF-3-Ln. Highly ordered CO2 molecules can strongly interact with the framework via electrostatic interaction of nitrates. We found that the CO2 adsorption capacity and binding energy were gradually enhanced as lanthanide contraction. The strong CO2 binding affinity endows NKMOF-3-Ln with excellent CO2 separation performance, which is verified by experimental breakthrough results.
AB - Inspired by the structure of carbonic anhydrase, we developed a robust ultramicroporous lanthanide metal-organic framework (MOF) platform (NKMOF-3-Ln), which possesses a porous pocket to selectively bind with CO2 at ambient conditions. Notably, CO2 molecules can be precisely observed in the single-crystal structure of NKMOF-3-Ln. Highly ordered CO2 molecules can strongly interact with the framework via electrostatic interaction of nitrates. We found that the CO2 adsorption capacity and binding energy were gradually enhanced as lanthanide contraction. The strong CO2 binding affinity endows NKMOF-3-Ln with excellent CO2 separation performance, which is verified by experimental breakthrough results.
KW - CO capture
KW - fluorescence response
KW - gas separation
KW - lanthanide
KW - metal-organic framework
UR - http://www.scopus.com/inward/record.url?scp=85068189991&partnerID=8YFLogxK
U2 - 10.1021/acsami.9b04619
DO - 10.1021/acsami.9b04619
M3 - Article
C2 - 31184107
AN - SCOPUS:85068189991
SN - 1944-8244
VL - 11
SP - 23192
EP - 23197
JO - ACS Applied Materials and Interfaces
JF - ACS Applied Materials and Interfaces
IS - 26
ER -