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Chen J, Longo M, Fuoco A, Esposito E, Monteleone M, Comesaña Gándara B, Carolus Jansen J, McKeown NB. Dibenzomethanopentacene-Based Polymers of Intrinsic Microporosity for Use in Gas-Separation Membranes. Angew Chem Int Ed Engl 2023; 62:e202215250. [PMID: 36511357 PMCID: PMC10107563 DOI: 10.1002/anie.202215250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/09/2022] [Accepted: 12/12/2022] [Indexed: 12/15/2022]
Abstract
Dibenzomethanopentacene (DBMP) is shown to be a useful structural component for making Polymers of Intrinsic Microporosity (PIMs) with promise for making efficient membranes for gas separations. DBMP-based monomers for PIMs are readily prepared using a Diels-Alder reaction between 2,3-dimethoxyanthracene and norbornadiene as the key synthetic step. Compared to date for the archetypal PIM-1, the incorporation of DBMP simultaneously enhances both gas permeability and the ideal selectivity for one gas over another. Hence, both ideal and mixed gas permeability data for DBMP-rich co-polymers and an amidoxime modified PIM are close to the current Robeson upper bounds, which define the state-of-the-art for the trade-off between permeability and selectivity, for several important gas pairs. Furthermore, long-term studies (over ≈3 years) reveal that the reduction in gas permeabilities on ageing is less for DBMP-containing PIMs relative to that for other high performing PIMs, which is an attractive property for the fabrication of membranes for efficient gas separations.
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Affiliation(s)
- Jie Chen
- EaStCHEM, School of Chemistry, University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK
| | - Mariagiulia Longo
- Institute on Membrane Technology, National Research Council of Italy (CNR-ITM), via P. Bucci 17/C, 87036, Rende (CS), Italy
| | - Alessio Fuoco
- Institute on Membrane Technology, National Research Council of Italy (CNR-ITM), via P. Bucci 17/C, 87036, Rende (CS), Italy
| | - Elisa Esposito
- Institute on Membrane Technology, National Research Council of Italy (CNR-ITM), via P. Bucci 17/C, 87036, Rende (CS), Italy
| | - Marcello Monteleone
- Institute on Membrane Technology, National Research Council of Italy (CNR-ITM), via P. Bucci 17/C, 87036, Rende (CS), Italy
| | - Bibiana Comesaña Gándara
- EaStCHEM, School of Chemistry, University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK
| | - Johannes Carolus Jansen
- Institute on Membrane Technology, National Research Council of Italy (CNR-ITM), via P. Bucci 17/C, 87036, Rende (CS), Italy
| | - Neil B McKeown
- EaStCHEM, School of Chemistry, University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK
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Atomic layer deposited aluminium oxide membranes for selective hydrogen separation through molecular sieving. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.121011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ma Y, Cui F, Rong H, Song J, Jing X, Tian Y, Zhu G. Continuous Porous Aromatic Framework Membranes with Modifiable Sites for Optimized Gas Separation. Angew Chem Int Ed Engl 2022; 61:e202113682. [PMID: 34687128 DOI: 10.1002/anie.202113682] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 10/20/2021] [Indexed: 11/09/2022]
Abstract
Continuous microporous membranes are widely studied for gas separation, due to their low energy premium and strong molecular specificity. Porous aromatic frameworks (PAFs) with their exceptional stability and structural flexibility are suited to a wide range of separations. Main-stream PAF-based membranes are usually prepared with polymeric matrices, but their discrete entities and boundary defects weaken their selectivity and permeability. The synthesis of continuous PAF membranes is still a major challenge because PAFs are insoluble. Herein, we successfully synthesized a continuous PAF membrane for gas separation. Both pore size and chemistry of the PAF membrane were modified by ion-exchange, resulting in good selectivity and permeance for the gas mixtures H2 /N2 and CO2 /N2 . The membrane with Br- as a counter ion in the framework exhibited a H2 /N2 selectivity of 72.7 with a H2 permeance of 51844 gas permeation units (GPU). When the counter ions were replaced by BF4 - , the membrane showed a CO2 permeance of 23058 GPU, and an optimized CO2 /N2 selectivity of 60.0. Our results show that continuous PAF membranes with modifiable pores are promising for various gas separation situations.
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Affiliation(s)
- Yue Ma
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Northeast Normal University, Changchun, 130024, China
| | - Fengchao Cui
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Northeast Normal University, Changchun, 130024, China
| | - Huazhen Rong
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Northeast Normal University, Changchun, 130024, China
| | - Jian Song
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Northeast Normal University, Changchun, 130024, China
| | - Xiaofei Jing
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Northeast Normal University, Changchun, 130024, China
| | - Yuyang Tian
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Northeast Normal University, Changchun, 130024, China
| | - Guangshan Zhu
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Northeast Normal University, Changchun, 130024, China
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Ma Y, Cui F, Rong H, Song J, Jing X, Tian Y, Zhu G. Continuous Porous Aromatic Framework Membranes with Modifiable Sites for Optimized Gas Separation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202113682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yue Ma
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education Northeast Normal University Changchun 130024 China
| | - Fengchao Cui
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education Northeast Normal University Changchun 130024 China
| | - Huazhen Rong
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education Northeast Normal University Changchun 130024 China
| | - Jian Song
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education Northeast Normal University Changchun 130024 China
| | - Xiaofei Jing
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education Northeast Normal University Changchun 130024 China
| | - Yuyang Tian
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education Northeast Normal University Changchun 130024 China
| | - Guangshan Zhu
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education Northeast Normal University Changchun 130024 China
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