Reticular Chemistry in Pore Engineering of a Y-Based Metal–Organic Framework for Xenon/Krypton Separation

Xiyu Song; Qiuhong Huang; Jiaqi Liu; Haomiao Xie; Karam B. Idrees; Shujing Hou; Liang Yu; Xingjie Wang; Fusheng Liu; Zhiwei Qiao; Hao Wang; Yongwei Chen; Zhibo Li; Omar K. Farha

doi:10.1021/acsami.3c01229

journal article·2023-04-12

Reticular Chemistry in Pore Engineering of a Y-Based Metal–Organic Framework for Xenon/Krypton Separation

Xiyu Song, Qiuhong Huang, Jiaqi Liu, Haomiao Xie, Karam B. Idrees, Shujing Hou, Liang Yu, Xingjie Wang, Fusheng Liu, Zhiwei Qiao, Hao Wang, Yongwei Chen, Zhibo Li, Omar K. Farha

ACS Applied Materials & Interfaces· Volume 15· Issue 14

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Source abstract

Abstract

The fine-tuning of metal–organic framework (MOF) pore structures is of critical importance in developing energy-efficient xenon/krypton (Xe/Kr) separation techniques. Capitalizing on reticular chemistry, we constructed a robust Y-based MOF (NU-1801) that is isoreticular to NPF-500 with a shortened organic ligand and a larger metal radius while maintaining the 4,8-connected flu topology, giving rise to a narrowed pore structure for the efficient separation of a Xe/Kr mixture. At 298 K and 1 bar, NU-1801 possessed a moderate Xe uptake of 2.79 mmol/g but exhibited a high Xe/Kr selectivity of 8.2 and an exceptional Xe/Kr uptake ratio of about 400%. NU-1801 could efficiently separate a Xe/Kr mixture (20:80, v/v), as validated by breakthrough experiments, due to the outstanding discrimination in van der Waals interactions of Xe and Kr toward the framework confirmed by grand canonical Monte Carlo simulations. This work highlights the importance of reticular chemistry in designing structure-specific MOFs for gas separation.

Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Metal-Organic Frameworks: Synthesis and Applications · Covalent Organic Framework Applications · Radioactive element chemistry and processing

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, People’s Republic of China

Guangzhou Key Laboratory for New Energy and Green Catalysis, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, People’s Republic of China

Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, People’s Republic of China

Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States

Funding

Basic Energy Sciences · National Natural Science Foundation of China · Natural Science Foundation of Shandong Province · Pearl River Talent Recruitment Program · Province and Ministry Co-construction Collaborative Innovation Center of Eco-Chemical Engineering · Taishan Scholar Constructive Engineering Foundation

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