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Li L, Zhang X, Xu W, Guo M, Liu Q, Li F, Liu T, Xing T, Li Z, Wang M, Wu M. Contracting pore channels of a magnesium-based metal-organic framework by decorating methyl groups for effective Xe/Kr separation. Dalton Trans 2024; 53:5917-5921. [PMID: 38456197 DOI: 10.1039/d3dt04001a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
A new magnesium-based metal-organic framework with unprecedented short-chain secondary building units and ultra-micropore channels approaching the kinetic diameters of Xe is fabricated by decorating methyl groups on ligands. Due to the contracted pores, this MOF exhibits very high selectivity values for Xe/Kr, which ranks it among the top porous absorbents.
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Affiliation(s)
- Liangjun Li
- College of New Energy, China University of Petroleum (East China), 266580, Qingdao, China.
| | - Xu Zhang
- College of New Energy, China University of Petroleum (East China), 266580, Qingdao, China.
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), 266580, Qingdao, China.
| | - Wenli Xu
- College of New Energy, China University of Petroleum (East China), 266580, Qingdao, China.
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), 266580, Qingdao, China.
| | - Mengwei Guo
- College of New Energy, China University of Petroleum (East China), 266580, Qingdao, China.
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), 266580, Qingdao, China.
| | - Qingying Liu
- College of New Energy, China University of Petroleum (East China), 266580, Qingdao, China.
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), 266580, Qingdao, China.
| | - Fangru Li
- College of New Energy, China University of Petroleum (East China), 266580, Qingdao, China.
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), 266580, Qingdao, China.
| | - Tao Liu
- Research and Innovation Centre of New Energy, Shandong Energy Group., Co. Ltd, 250101, Jinan, China
- National Engineering Research Centre of Coal Gasification and Coal-Based Advanced Materials, China
| | - Tao Xing
- Research and Innovation Centre of New Energy, Shandong Energy Group., Co. Ltd, 250101, Jinan, China
- National Engineering Research Centre of Coal Gasification and Coal-Based Advanced Materials, China
| | - Zhi Li
- Research and Innovation Centre of New Energy, Shandong Energy Group., Co. Ltd, 250101, Jinan, China
- National Engineering Research Centre of Coal Gasification and Coal-Based Advanced Materials, China
| | - Mingqing Wang
- Research and Innovation Centre of New Energy, Shandong Energy Group., Co. Ltd, 250101, Jinan, China
- National Engineering Research Centre of Coal Gasification and Coal-Based Advanced Materials, China
| | - Mingbo Wu
- College of New Energy, China University of Petroleum (East China), 266580, Qingdao, China.
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), 266580, Qingdao, China.
- National Engineering Research Centre of Coal Gasification and Coal-Based Advanced Materials, China
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Chen C, Chen Z, Zhang M, Zheng S, Zhang W, Li S, Pan F. Closo-[B 12 H 12 ] 2- Derivatives with Polar Groups As Promising Building Blocks in Metal-Organic Frameworks for Gas Separation. CHEMSUSCHEM 2023; 16:e202300434. [PMID: 37253197 DOI: 10.1002/cssc.202300434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/24/2023] [Accepted: 05/25/2023] [Indexed: 06/01/2023]
Abstract
Engineering design of metal organic frameworks (MOFs) for gas separation applications is nowadays a thriving field of investigation. Based on the recent experimental studies of dodecaborate-hybrid MOFs as potential materials to separate industry-relevant gas mixtures, we herein present a systematic theoretical study on the derivatives of the closo-dodecaborate anion [B12 H12 ]2- , which can serve as building blocks for MOFs. We discover that amino functionalization can impart a greater ability to selectively capture carbon dioxide from its mixtures with other gases such as nitrogen, ethylene and acetylene. The main advantage lies in the polarization effect induced by amino group, which favors the localization of the negative charges on the boron-cluster anion and offers a nucleophilic anchoring site to accommodate the carbon atom in carbon dioxide. This work suggests an appealing strategy of polar functionalization to optimize the molecule discrimination ability via preferential adsorption.
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Affiliation(s)
- Chuanxi Chen
- School of Advanced Materials, Peking University, Shenzhen Graduate School, 518055, Shenzhen, People's Republic of China
| | - Zhefeng Chen
- School of Advanced Materials, Peking University, Shenzhen Graduate School, 518055, Shenzhen, People's Republic of China
| | - Mingzheng Zhang
- School of Advanced Materials, Peking University, Shenzhen Graduate School, 518055, Shenzhen, People's Republic of China
| | - Shisheng Zheng
- School of Advanced Materials, Peking University, Shenzhen Graduate School, 518055, Shenzhen, People's Republic of China
| | - Wentao Zhang
- School of Advanced Materials, Peking University, Shenzhen Graduate School, 518055, Shenzhen, People's Republic of China
| | - Shunning Li
- School of Advanced Materials, Peking University, Shenzhen Graduate School, 518055, Shenzhen, People's Republic of China
| | - Feng Pan
- School of Advanced Materials, Peking University, Shenzhen Graduate School, 518055, Shenzhen, People's Republic of China
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Song X, Huang Q, Liu J, Xie H, Idrees KB, Hou S, Yu L, Wang X, Liu F, Qiao Z, Wang H, Chen Y, Li Z, Farha OK. Reticular Chemistry in Pore Engineering of a Y-Based Metal-Organic Framework for Xenon/Krypton Separation. ACS APPLIED MATERIALS & INTERFACES 2023; 15:18229-18235. [PMID: 36996577 DOI: 10.1021/acsami.3c01229] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
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.
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Affiliation(s)
- Xiyu Song
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Qiuhong Huang
- Guangzhou Key Laboratory for New Energy and Green Catalysis, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, People's Republic of China
| | - Jiaqi Liu
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, People's Republic of China
| | - Haomiao Xie
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Karam B Idrees
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Shujing Hou
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Liang Yu
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, People's Republic of China
| | - Xingjie Wang
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Fusheng Liu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Zhiwei Qiao
- Guangzhou Key Laboratory for New Energy and Green Catalysis, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, People's Republic of China
| | - Hao Wang
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, Shenzhen 518055, People's Republic of China
| | - Yongwei Chen
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Zhibo Li
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Omar K Farha
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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