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Xu M, Li D, Feng Y, Yuan Y, Wu Y, Zhao H, Kumar RV, Feng G, Xi K. Microporous Materials in Polymer Electrolytes: The Merit of Order. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2405079. [PMID: 38922998 DOI: 10.1002/adma.202405079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 06/11/2024] [Indexed: 06/28/2024]
Abstract
Solid-state batteries (SSBs) have garnered significant attention in the critical field of sustainable energy storage due to their potential benefits in safety, energy density, and cycle life. The large-scale, cost-effective production of SSBs necessitates the development of high-performance solid-state electrolytes. However, the manufacturing of SSBs relies heavily on the advancement of suitable solid-state electrolytes. Composite polymer electrolytes (CPEs), which combine the advantages of ordered microporous materials (OMMs) and polymer electrolytes, meet the requirements for high ionic conductivity/transference number, stability with respect to electrodes, compatibility with established manufacturing processes, and cost-effectiveness, making them particularly well-suited for mass production of SSBs. This review delineates how structural ordering dictates the fundamental physicochemical properties of OMMs, including ion transport, thermal transfer, and mechanical stability. The applications of prominent OMMs are critically examined, such as metal-organic frameworks, covalent organic frameworks, and zeolites, in CPEs, highlighting how structural ordering facilitates the fulfillment of property requirements. Finally, an outlook on the field is provided, exploring how the properties of CPEs can be enhanced through the dimensional design of OMMs, and the importance of uncovering the underlying "feature-function" mechanisms of various CPE types is underscored.
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Affiliation(s)
- Ming Xu
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Danyang Li
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Yuhe Feng
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Yu Yuan
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Yutong Wu
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Hongyang Zhao
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - R Vasant Kumar
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, CB3 0FS, UK
| | - Guodong Feng
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Kai Xi
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
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Zeng Q, Guo Y, Zhao L, Wang T, Zhang L, Fan F, Fu Y. Preparation of Free-Standing Defect-Free ZIF-8/PVA Membranes via Confined Reaction at the Quasi-Interface. ACS APPLIED MATERIALS & INTERFACES 2024; 16:40243-40249. [PMID: 39028833 DOI: 10.1021/acsami.4c08304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/21/2024]
Abstract
Developing a facile strategy to synthesize free-standing defect-free metal-organic framework (MOF) membranes with high separation selectivity and good mechanical stability is very appealing but challenging. Herein, by confining the reaction of metal and ligand at the quasi-interface, a representative membrane composed of a continuous ZIF-8 layer and poly(vinyl alcohol) (PVA) was fabricated. The continuous ZIF-8 layer endowed the membrane with high separation efficiency, while PVA acted as a filler to eliminate the defection, synergistically achieving high selective ion transport and good mechanical stability. The continuous defect-free ZIF-8/PVA membrane showed excellent separation performance of selective ion transport with high Li+ permeance of 17.83 mol·m-2·h-1 as well as decent Li+/Mg2+ and Li+/Ca2+ selectivities of 24.60 and 244.58, respectively. The separation performance of the ZIF-8/PVA membrane remained stable after 10% strain, indicating its good mechanical stability. This work will promote the development of MOF-based membranes in practical applications.
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Affiliation(s)
- Qingqi Zeng
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang110819, P. R. China
| | - Yan Guo
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang110819, P. R. China
| | - Lin Zhao
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang110819, P. R. China
| | - Tieqiang Wang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang110819, P. R. China
| | - Liying Zhang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang110819, P. R. China
| | - Fuqiang Fan
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang110819, P. R. China
| | - Yu Fu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang110819, P. R. China
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Kabir MH, Kannan S, Veetil KA, Sun EK, Kim TH. Enhancing CO 2 Transport Across the PEG/PPG-Based Crosslinked Rubbery Polymer Membranes with a Sterically Bulky Carbazole-Based ROMP Comonomer. Macromol Rapid Commun 2024:e2400296. [PMID: 39058043 DOI: 10.1002/marc.202400296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 06/29/2024] [Indexed: 07/28/2024]
Abstract
A series of poly(ethylene glycol)-block-poly(propylene glycol) (PEG/PPG)- and 5,6-di(9H-carbazol-9-yl)isoindoline-1,3-dione (2CZPImide)-based crosslinked rubbery polymer membranes, denoted as PEG/PPG-2CZPImide (x:y), are prepared from the norbornene-functionalized PEG/PPG oligomer (NB-PEG/PPG-NB) and 2-(bicyclo[2.2.1]hept-5-en-2-ylmethyl)-5,6-di(9H-carbazol-9-yl)isoindoline-1,3-dione (2CZPImide-NB) via ring-opening metathesis polymerization (ROMP). The molar ratio (x:y) of the NB-PEG/PPG-NB (x) to 2CZPImide-NB (y) monomers is varied from 10:1 to 6:1. X-ray diffraction (XRD), scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDS), and pure gas permeability studies reveal that the comonomer 2CZPImide-NB successfully increases the d-spacing among the crystalline PEG/PPG segments, hence enhancing the diffusivity of gases through the membranes. The synthesized membranes exhibit good CO2 separation performance, with CO2 permeabilities ranging from 311.1 to 418.1 Barrer and CO2/N2 and CO2/CH4 selectivities of 39.4-52.0 and 13.4-16.0, respectively, approaching the 2008 Robeson upper bound. Moreover, PEG/PPG-2CZPImide (6:1), displaying optimal CO2 permeability and CO2/N2 and CO2/CH4 selectivities, shows long-term stability against physical aging and plasticization resistance up to 20 days and 10 atm, respectively.
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Affiliation(s)
- Md Homayun Kabir
- Organic Material Synthesis Laboratory, Department of Chemistry, Incheon National University, Incheon, 22012, South Korea
- Research Institute of Basic Sciences, Incheon National University, Incheon, 22012, South Korea
- Department of Chemistry, Pabna University of Science and Technology, Pabna, 6600, Bangladesh
| | - Senthil Kannan
- Organic Material Synthesis Laboratory, Department of Chemistry, Incheon National University, Incheon, 22012, South Korea
- Research Institute of Basic Sciences, Incheon National University, Incheon, 22012, South Korea
| | - Kavya Adot Veetil
- Organic Material Synthesis Laboratory, Department of Chemistry, Incheon National University, Incheon, 22012, South Korea
- Research Institute of Basic Sciences, Incheon National University, Incheon, 22012, South Korea
| | - Eun Kyu Sun
- Organic Material Synthesis Laboratory, Department of Chemistry, Incheon National University, Incheon, 22012, South Korea
- Research Institute of Basic Sciences, Incheon National University, Incheon, 22012, South Korea
| | - Tae-Hyun Kim
- Organic Material Synthesis Laboratory, Department of Chemistry, Incheon National University, Incheon, 22012, South Korea
- Research Institute of Basic Sciences, Incheon National University, Incheon, 22012, South Korea
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Qi A, Li C, Evans JD, Zhao Y, Li T. Self-Sorting of Interfacial Compatibility in MOF-Based Mixed Matrix Membranes. Angew Chem Int Ed Engl 2024; 63:e202400474. [PMID: 38590031 DOI: 10.1002/anie.202400474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/29/2024] [Accepted: 04/08/2024] [Indexed: 04/10/2024]
Abstract
Metal-organic framework (MOF)-based mixed matrix membranes (MMMs) have shown great promises to overcome the performance upper limit of polymeric membranes for various gas separation processes. However, the gas separation properties of the MMMs largely depend on the MOF-polymer interfacial compatibility which is a metric difficult to quantify. In most cases, whether a MOF filler and a polymer matrix make a good pair is not revealed until the gas transport experiments are performed. This is because there is a lack of characterization techniques to directly probe the MOF-polymer interfacial compatibility. In this work, we demonstrate a self-sorting method to rank the interface compatibility among several MOF-polymer pairs. By mixing one MOF with two polymers in an MMM, the demixing of two polymers will form two polymer domains. The MOF particles will preferably partition into the "preferred" polymer domain due to their higher interfacial affinity. By scanning different polymer pairs, a rank of MOF-polymer interfacial compatibility from high to low can be obtained. Moreover, based on this ranking, it was also found that a highly compatible MOF-polymer pair suggested by this method also corresponds to a more predictable MMM gas separation performance.
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Affiliation(s)
- Anheng Qi
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Conger Li
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Jack D Evans
- School of Physics, Chemistry and Earth Sciences, University of Adelaide, Adelaide, South Australia, 5005, Australia
| | - Yingbo Zhao
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Tao Li
- School of Physics, Chemistry and Earth Sciences, University of Adelaide, Adelaide, South Australia, 5005, Australia
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5
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Liu Y, Xue B, Chen J, Lai Y, Cai L, Yin P. Supramolecular Complexation Reinforced Polymer Frustrated Packing: Controllable Dual Porosity for Improved Permselectivity of Coordination Nanocage Mixed Matrix Membranes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2400605. [PMID: 38794874 DOI: 10.1002/smll.202400605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 05/13/2024] [Indexed: 05/26/2024]
Abstract
The developments of mixed matrix membranes (MMMs) are severely hindered by the complex inter-phase interaction and the resulting poor utilization of inorganics' microporosity. Herein, a dual porosity framework is constructed in MMMs to enhance the accessibility of inorganics' microporosity to external gas molecules for the effective application of microporosity for gas separation. Nanocomposite organogels are first prepared from the supramolecular complexation of rigid polymers and 2 nm microporous coordination nanocages (CNCs). The network structures can be maintained with microporous features after solvent removal originated from the rigid nature of polymers, and the strong coordination and hydrogen bond between the two components. Moreover, the strong supramolecular attraction reinforces the frustrated packing of the rigid polymers on CNC surface, leading to polymer networks' extrinsic pores and the interconnection of CNCs' micro-cavities for the fast gas transportation. The gas permeabilities of the MMMs are 869 times for H2 and 1099 times for CO2 higher than those of pure polymers. The open metal sites from nanocage also contribute to the enhanced gas selectivity and the overall performance surpasses 2008 H2/CO2 Robeson upper bound. The supramolecular complexation reinforced packing frustration strategy offers a simple and practical solution to achieve improved gas permselectivity in MMMs.
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Affiliation(s)
- Yuan Liu
- State Key Laboratory of Luminescent Materials and Devices & School of Molecular Science and Engineering, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou, 510640, China
| | - Binghui Xue
- State Key Laboratory of Luminescent Materials and Devices & School of Molecular Science and Engineering, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou, 510640, China
| | - Jiadong Chen
- State Key Laboratory of Luminescent Materials and Devices & School of Molecular Science and Engineering, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou, 510640, China
| | - Yuyan Lai
- State Key Laboratory of Luminescent Materials and Devices & School of Molecular Science and Engineering, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou, 510640, China
| | - Linkun Cai
- State Key Laboratory of Luminescent Materials and Devices & School of Molecular Science and Engineering, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou, 510640, China
| | - Panchao Yin
- State Key Laboratory of Luminescent Materials and Devices & School of Molecular Science and Engineering, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, South China University of Technology, Guangzhou, 510640, China
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6
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Yu S, Li C, Zhao S, Chai M, Hou J, Lin R. Recent advances in the interfacial engineering of MOF-based mixed matrix membranes for gas separation. NANOSCALE 2024; 16:7716-7733. [PMID: 38536054 DOI: 10.1039/d4nr00096j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
The membrane process stands as a promising and transformative technology for efficient gas separation due to its high energy efficiency, operational simplicity, low environmental impact, and easy up-and-down scaling. Metal-organic framework (MOF)-polymer mixed matrix membranes (MMMs) combine MOFs' superior gas-separation performance with polymers' processing versatility, offering the opportunity to address the limitations of pure polymer or inorganic membranes for large-scale integration. However, the incompatibility between the rigid MOFs and flexible polymer chains poses a challenge in MOF MMM fabrication, which can cause issues such as MOF agglomeration, sedimentation, and interfacial defects, substantially weakening membrane separation efficiency and mechanical properties, particularly gas separation. This review focuses on engineering MMMs' interfaces, detailing recent strategies for reducing interfacial defects, improving MOF dispersion, and enhancing MOF loading. Advanced characterisation techniques for understanding membrane properties, specifically the MOF-polymer interface, are outlined. Lastly, it explores the remaining challenges in MMM research and outlines potential future research directions.
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Affiliation(s)
- Shuwen Yu
- School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, 234000, China
- School of Chemical Engineering, The University of Queensland, St Lucia, QLD, 4072, Australia.
| | - Conger Li
- School of Chemical Engineering, The University of Queensland, St Lucia, QLD, 4072, Australia.
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, China
| | - Shuke Zhao
- School of Chemical Engineering, The University of Queensland, St Lucia, QLD, 4072, Australia.
| | - Milton Chai
- School of Chemical Engineering, The University of Queensland, St Lucia, QLD, 4072, Australia.
| | - Jingwei Hou
- School of Chemical Engineering, The University of Queensland, St Lucia, QLD, 4072, Australia.
| | - Rijia Lin
- School of Chemical Engineering, The University of Queensland, St Lucia, QLD, 4072, Australia.
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Alebrahim T, Huang L, Welgama HK, Esmaeili N, Deng E, Cheng S, Acharya D, Doherty CM, Hill AJ, Rumsey C, Trebbin M, Cook TR, Lin H. Low-Loading Mixed Matrix Materials: Fractal-Like Structure and Peculiarly Enhanced Gas Permeability. ACS APPLIED MATERIALS & INTERFACES 2024; 16:11116-11124. [PMID: 38372265 DOI: 10.1021/acsami.3c19631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Mixed matrix materials (MMMs) containing metal-organic framework (MOF) nanoparticles are attractive for membrane carbon capture. Particularly, adding <5 mass % MOFs in polymers dramatically increased gas permeability, far surpassing the Maxwell model's prediction. However, no sound mechanisms have been offered to explain this unusual low-loading phenomenon. Herein, we design an ideal series of MMMs containing polyethers (one of the leading polymers for CO2/N2 separation) and discrete metal-organic polyhedra (MOPs) with cage sizes of 2-5 nm. Adding 3 mass % MOP-3 in a polyether increases the CO2 permeability by 100% from 510 to 1000 Barrer at 35 °C because of the increased gas diffusivity. No discernible changes in typical physical properties governing gas transport properties are detected, such as glass transition temperature, fractional free volume, d-spacing, etc. We hypothesize that this behavior is attributed to fractal-like networks formed by highly porous MOPs, and for the first time, we validate this hypothesis using small-angle X-ray scattering analysis.
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Affiliation(s)
- Taliehsadat Alebrahim
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Liang Huang
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
| | - Heshali K Welgama
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Narjes Esmaeili
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Erda Deng
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Shiwang Cheng
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, Michigan 48824, United States
| | - Durga Acharya
- Commonwealth Scientific and Industrial Research Organization (CSIRO) Future Industries, Private Bag 10, Clayton, South Victoria 3169, Australia
| | - Cara M Doherty
- Commonwealth Scientific and Industrial Research Organization (CSIRO) Future Industries, Private Bag 10, Clayton, South Victoria 3169, Australia
| | - Anita J Hill
- Commonwealth Scientific and Industrial Research Organization (CSIRO) Future Industries, Private Bag 10, Clayton, South Victoria 3169, Australia
| | - Clayton Rumsey
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Martin Trebbin
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Timothy R Cook
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Haiqing Lin
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
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8
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Li S, Han WY, Wang ZX, Sun YJ, Zheng Z, Yin MJ, Liu S, An QF. Dormancy and double-activation strategy for construction of high-performance mixed-matrix membranes. Angew Chem Int Ed Engl 2024; 63:e202315167. [PMID: 37983657 DOI: 10.1002/anie.202315167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/16/2023] [Accepted: 11/20/2023] [Indexed: 11/22/2023]
Abstract
Mixed-matrix membranes (MMMs) have the potential for energy-efficient gas separation by matching the superior mass transfer and anti-plasticization properties of the fillers with processability and scaling up features of the polymers. However, construction of high-performance MMMs has been prohibited due to low filler-loading and the existence of interfacial defects. Here, high MOF-loaded, i.e., 55 wt %, MMMs are developed by a 'dormancy and double-activation' (DDA) strategy. High MOF precursor concentration suppresses crystallization in the membrane casting solution, realizing molecular level mixing of all components. Then, the polymeric matrix was formed with uniform encapsulation of MOF nutrients. Subsequently, double-activation was employed to induce MOF crystallization: the alkali promotes MOFs nucleation to harvest small porous nanocrystals while excessive ligands activate the metal ions to enhance the MOFs conversion. As such, quasi-semi-continuous mass transfer channels can be formed in the MMMs by the connected MOFs nanocrystals to boost the gas permeability. The optimized MMM shows significantly ameliorated CO2 permeability, i.e., 2841 Barrer, five-fold enhancement compared with pristine polymer membrane, with a good CO2 /N2 selectivity of 36. Besides, the nanosized MOFs intensify their interaction with polymer chains, endowing the MMMs with good anti-plasticization behaviour and stability, which advances practical application of MMMs in carbon capture.
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Affiliation(s)
- Shuo Li
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemical Engineering, Beijing University of Technology, Beijing, 100124, China
| | - Wei-Yao Han
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemical Engineering, Beijing University of Technology, Beijing, 100124, China
| | - Zhao-Xu Wang
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemical Engineering, Beijing University of Technology, Beijing, 100124, China
| | - Yu-Jie Sun
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemical Engineering, Beijing University of Technology, Beijing, 100124, China
| | - Zilong Zheng
- Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, China
| | - Ming-Jie Yin
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemical Engineering, Beijing University of Technology, Beijing, 100124, China
| | - Shaomin Liu
- WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Bentley, WA 6102, Australia
| | - Quan-Fu An
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemical Engineering, Beijing University of Technology, Beijing, 100124, China
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Liu Y, Xue B, Chen J, Lai Y, Yin P. The Coordination Nanocages-Integrated Polymer Brush Networks for Flexible Microporous Membranes with Exceptional H 2 /CO 2 Separation Performance. Macromol Rapid Commun 2023; 44:e2300477. [PMID: 37814593 DOI: 10.1002/marc.202300477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/07/2023] [Indexed: 10/11/2023]
Abstract
The emergence of polymers with intrinsic microporosity provides solutions for flexible gas separation membranes with both high gas permeability and selectivity. However, their applications are significantly hindered by the costly synthetic efforts, limited availability of chemical systems, and narrow window of microporosity sizes. Herein, flexible mixed matrix membranes with tunable intrinsic microporosity can be facilely fabricated from the coordination assembly of polymer brushes and coordination nanocages. Polymer brushes bearing isophthalic acid side groups can coordinate with Cu2+ to assemble into polymer networks crosslinked by 2 nm nanocages. The semi-flexible feature of the polymer brush and the high crosslinking density of the network prevent the network from collapsing during solvent removal and the obtained aerogels demonstrate hierarchical structure with dual porosity from the crosslinked polymer network and coordination nanocage, respectively. The porosity can be facilely tuned via the amount of Cu2+ by regulating the network crosslinking density and nanocage loadings, and finally, optimized gas separation that surpasses Robeson upper bound for H2 /CO2 can be achieved. The coordination-driven assembly protocol paves a new avenue for the cost-effective synthesis of polymers with intrinsic microporosity and the fabrication of flexible gas separation membranes.
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Affiliation(s)
- Yuan Liu
- State Key Laboratory of Luminescent Materials and Devices & South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Binghui Xue
- State Key Laboratory of Luminescent Materials and Devices & South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Jiadong Chen
- State Key Laboratory of Luminescent Materials and Devices & South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Yuyan Lai
- State Key Laboratory of Luminescent Materials and Devices & South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Panchao Yin
- State Key Laboratory of Luminescent Materials and Devices & South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640, P. R. China
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10
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Adot Veetil K, Husna A, Kabir MH, Jeong I, Choi O, Hossain I, Kim TH. Developing Mixed Matrix Membranes with Good CO 2 Separation Performance Based on PEG-Modified UiO-66 MOF and 6FDA-Durene Polyimide. Polymers (Basel) 2023; 15:4442. [PMID: 38006167 PMCID: PMC10674161 DOI: 10.3390/polym15224442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/04/2023] [Accepted: 11/14/2023] [Indexed: 11/26/2023] Open
Abstract
The use of mixed matrix membranes (MMMs) comprising metal-organic frameworks (MOFs) for the separation of CO2 from flue gas has gained recognition as an effective strategy for enhancing gas separation efficiency. When incorporating porous materials like MOFs into a polymeric matrix to create MMMs, the combined characteristics of each constituent typically manifest. Nevertheless, the inadequate dispersion of an inorganic MOF filler within an organic polymer matrix can compromise the compatibility between the filler and matrix. In this context, the aspiration is to develop an MMM that not only exhibits optimal interfacial compatibility between the polymer and filler but also delivers superior gas separation performance, specifically in the efficient extraction of CO2 from flue gas. In this study, we introduce a modification technique involving the grafting of poly(ethylene glycol) diglycidyl ether (PEGDE) onto a UiO-66-NH2 MOF filler (referred to as PEG-MOF), aimed at enhancing its compatibility with the 6FDA-durene matrix. Moreover, the inherent CO2-philic nature of PEGDE is anticipated to enhance the selectivity of CO2 over N2 and CH4. The resultant MMM, incorporating 10 wt% of PEG-MOF loading, exhibits a CO2 permeability of 1671.00 Barrer and a CO2/CH4 selectivity of 22.40. Notably, these values surpass the upper bound reported by Robeson in 2008.
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Affiliation(s)
- Kavya Adot Veetil
- Organic Material Synthesis Laboratory, Department of Chemistry, Incheon National University, Incheon 22012, Republic of Korea; (K.A.V.); (A.H.); (M.H.K.); (I.J.); (O.C.); (I.H.)
- Research Institute of Basic Sciences, Core Research Institute, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
| | - Asmaul Husna
- Organic Material Synthesis Laboratory, Department of Chemistry, Incheon National University, Incheon 22012, Republic of Korea; (K.A.V.); (A.H.); (M.H.K.); (I.J.); (O.C.); (I.H.)
- Research Institute of Basic Sciences, Core Research Institute, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
| | - Md. Homayun Kabir
- Organic Material Synthesis Laboratory, Department of Chemistry, Incheon National University, Incheon 22012, Republic of Korea; (K.A.V.); (A.H.); (M.H.K.); (I.J.); (O.C.); (I.H.)
- Research Institute of Basic Sciences, Core Research Institute, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
| | - Insu Jeong
- Organic Material Synthesis Laboratory, Department of Chemistry, Incheon National University, Incheon 22012, Republic of Korea; (K.A.V.); (A.H.); (M.H.K.); (I.J.); (O.C.); (I.H.)
- Research Institute of Basic Sciences, Core Research Institute, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
| | - Ook Choi
- Organic Material Synthesis Laboratory, Department of Chemistry, Incheon National University, Incheon 22012, Republic of Korea; (K.A.V.); (A.H.); (M.H.K.); (I.J.); (O.C.); (I.H.)
- Research Institute of Basic Sciences, Core Research Institute, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
| | - Iqubal Hossain
- Organic Material Synthesis Laboratory, Department of Chemistry, Incheon National University, Incheon 22012, Republic of Korea; (K.A.V.); (A.H.); (M.H.K.); (I.J.); (O.C.); (I.H.)
- Research Institute of Basic Sciences, Core Research Institute, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
| | - Tae-Hyun Kim
- Organic Material Synthesis Laboratory, Department of Chemistry, Incheon National University, Incheon 22012, Republic of Korea; (K.A.V.); (A.H.); (M.H.K.); (I.J.); (O.C.); (I.H.)
- Research Institute of Basic Sciences, Core Research Institute, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
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Kundu S, Haldar R. A roadmap to enhance gas permselectivity in metal-organic framework-based mixed-matrix membranes. Dalton Trans 2023; 52:15253-15276. [PMID: 37603374 DOI: 10.1039/d3dt01878d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
Performing gas separation at high efficiency with minimum energy input and reduced carbon footprint is a major challenge. While several separation methods exist at various technology readiness levels, porous membrane-based separation is considered as a disruptive technology. To attain sustainability and required efficiency, different approaches of membrane design have been explored. However, the selectivity-permeation trade-off and membrane aging have restricted further advancement. In this regard, a new generation composite made of organic polymers and metal-organic framework (MOF) fillers shows substantial promise. Organic polymer matrix allows easy processibility, but it has poor permselectivity for gas molecules. Metal-organic frameworks are excellent sieving materials; however, they suffer from poor processibility issues. A combination of these two components makes an ideal sieving membrane, which can potentially outnumber the existing energy intensive distillation strategies. In this perspective, we have discussed key indices that regulate gas permselectivity by a careful selection of the existing literature. While the target gas flux and selectivity values have been a part of many previous reviews and articles, we have presented a concise discussion on the interface design of the MOF-polymer membrane, morphology, and orientation control of MOF fillers in the matrix. Following this, a future roadmap to overcome challenges related to MOF-polymer interfacial defects is outlined.
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Affiliation(s)
- Susmita Kundu
- Tata Institute of Fundamental Research Hyderabad, Gopanpally, Hyderabad 500046, Telangana, India.
| | - Ritesh Haldar
- Tata Institute of Fundamental Research Hyderabad, Gopanpally, Hyderabad 500046, Telangana, India.
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