Molecular Sieving and Direct Visualization of CO 2 in Binding Pockets of an Ultramicroporous Lanthanide Metal-Organic Framework Platform

Molecular Sieving and Direct Visualization of CO 2 in Binding Pockets of an Ultramicroporous Lanthanide Metal-Organic Framework Platform

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 CO at ambient conditions. Notably, CO molecules can be precisely observed in the single-cry...

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Veröffentlicht in:ACS applied materials & interfaces 2019-07, Vol.11 (26), p.23192-23197
Hauptverfasser: Han, Lin, Pham, Tony, Zhuo, Mingjing, Forrest, Katherine A, Suepaul, Shanelle, Space, Brian, Zaworotko, Michael J, Shi, Wei, Chen, Yao, Cheng, Peng, Zhang, Zhenjie
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container_end_page 23197
container_issue 26
container_start_page 23192
container_title ACS applied materials & interfaces
container_volume 11
creator Han, Lin
Pham, Tony
Zhuo, Mingjing
Forrest, Katherine A
Suepaul, Shanelle
Space, Brian
Zaworotko, Michael J
Shi, Wei
Chen, Yao
Cheng, Peng
Zhang, Zhenjie
description 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 CO at ambient conditions. Notably, CO molecules can be precisely observed in the single-crystal structure of NKMOF-3-Ln. Highly ordered CO molecules can strongly interact with the framework via electrostatic interaction of nitrates. We found that the CO adsorption capacity and binding energy were gradually enhanced as lanthanide contraction. The strong CO binding affinity endows NKMOF-3-Ln with excellent CO separation performance, which is verified by experimental breakthrough results. Moreover, because of the specific binding affinity of CO , NKMOF-3-Eu showed a fluorescence response to CO .
doi_str_mv 10.1021/acsami.9b04619
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title Molecular Sieving and Direct Visualization of CO 2 in Binding Pockets of an Ultramicroporous Lanthanide Metal-Organic Framework Platform
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