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Luo X, Zhang M, Hu Y, Xu Y, Zhou H, Xu Z, Hao Y, Chen S, Chen S, Luo Y, Lin Y, Zhao J. Wrinkled metal-organic framework thin films with tunable Turing patterns for pliable integration. Science 2024; 385:647-651. [PMID: 39116246 DOI: 10.1126/science.adn8168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Accepted: 07/10/2024] [Indexed: 08/10/2024]
Abstract
Flexible integration spurs diverse applications in metal-organic frameworks (MOFs). However, current configurations suffer from the trade-off between MOF loadings and mechanical compliance. We report a wrinkled configuration of MOF thin films. We established an interfacial synthesis confined and controlled by a polymer topcoat and achieved multiple Turing motifs in the wrinkled thin films. These films have complete MOF surface coverage and exhibit strain tolerance up to 53.2%. The enhanced mechanical properties allow film transfer onto various substrates. We obtained membranes with large H2/CO2 selectivity (41.2) and high H2 permeance (8.46 × 103 gas permeation units), showcasing negligible defects after transfer. We also achieved soft humidity sensors on delicate electrodes by avoiding exposure to harsh MOF synthesis conditions. These results highlight the potential of wrinkled MOF thin films for plug-and-play integration.
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Affiliation(s)
- Xinyu Luo
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
- Institute of Zhejiang University-Quzhou, Quzhou, Zhejiang 324000, China
| | - Ming Zhang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
- Institute of Zhejiang University-Quzhou, Quzhou, Zhejiang 324000, China
| | - Yubin Hu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
- Institute of Zhejiang University-Quzhou, Quzhou, Zhejiang 324000, China
| | - Yan Xu
- School of Aeronautics and Astronautics, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Haofei Zhou
- School of Aeronautics and Astronautics, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Zijian Xu
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yinxuan Hao
- School of Aeronautics and Astronautics, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Sheng Chen
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shengfu Chen
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Yingwu Luo
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Yiliang Lin
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 117585, Singapore
| | - Junjie Zhao
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
- Institute of Zhejiang University-Quzhou, Quzhou, Zhejiang 324000, China
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2
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Feng L, Huang S, Heo TW, Biener J. Integrated Framework to Model Microstructure Evolution and Decipher the Microstructure-Property Relationship in Polymeric Porous Materials. ACS APPLIED MATERIALS & INTERFACES 2024; 16:38442-38457. [PMID: 39009042 DOI: 10.1021/acsami.4c03011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/17/2024]
Abstract
Unraveling the microstructure-property relationship is crucial for improving material performance and advancing the design of next-generation structural and functional materials. However, this is inherently challenging because it requires both the comprehensive quantification of microstructural features and the accurate assessment of corresponding properties. To meet these requirements, we developed an efficient and comprehensive integrated modeling framework, using polymeric porous materials as a representative model system. Our framework generates microstructures using a physics-based phase-field model, characterizes them using various average and localized microstructural features, and evaluates microstructure-aware properties, such as effective diffusivity, using an efficient Fourier-based perturbation numerical scheme. Additionally, the framework incorporates machine learning methods to decipher the intricate microstructure-property relationships. Our findings indicate that the connectivity of phase channels is the most critical microstructural descriptor for determining effective diffusivity, followed by the domain shape represented by curvature distribution, while the domain size has a minor impact. This comprehensive approach offers a novel framework for assessing microstructure-property relationships in polymer-based porous materials, paving the way for the development of advanced materials for diverse applications.
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Affiliation(s)
- Longsheng Feng
- Materials Science Division, Lawrence Livermore National Laboratory, Livermore, California 94550, United States
- Laboratory for Energy Applications for the Future (LEAF), Lawrence Livermore National Laboratory, Livermore, California 94550, United States
| | - Sijia Huang
- Materials Engineering Division, Lawrence Livermore National Laboratory, Livermore, California 94550, United States
| | - Tae Wook Heo
- Materials Science Division, Lawrence Livermore National Laboratory, Livermore, California 94550, United States
- Laboratory for Energy Applications for the Future (LEAF), Lawrence Livermore National Laboratory, Livermore, California 94550, United States
| | - Juergen Biener
- Materials Science Division, Lawrence Livermore National Laboratory, Livermore, California 94550, United States
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3
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Rahmanzadeh A, AL-Hamdani N, Favvas EP, De Luca G. Insights into Cis-Amide-Modified Carbon Nanotubes for Selective Purification of CH 4 and H 2 from Gas Mixtures: A Comparative DFT Study. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3588. [PMID: 39063880 PMCID: PMC11279001 DOI: 10.3390/ma17143588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 07/12/2024] [Accepted: 07/16/2024] [Indexed: 07/28/2024]
Abstract
Among a plethora of mixtures, the methane (CH4) and hydrogen (H2) mixture has garnered considerable attention for multiple reasons, especially in the framework of energy production and industrial processes as well as ecological considerations. Despite the fact that the CH4/H2 mixture performs many critical tasks, the presence of other gases, such as carbon dioxide, sulfur compounds like H2S, and water vapor, leads to many undesirable consequences. Thus purification of this mixture from these gases assumes considerable relevance. In the current research, first-principle calculations in the frame of density functional theory are carried out to propose a new functional group for vertically aligned carbon nanotubes (VA-CNTs) interacting preferentially with polar molecules rather than CH4 and H2 in order to obtain a more efficient methane and hydrogen separations The binding energies associated with the interactions between several chemical groups and target gases were calculated first, and then a functional group formed by a modified ethylene glycol and acetyl amide was selected. This functional group was attached to the CNT edge with an appropriate diameter, and hence the binding energies with the target gases and steric hindrance were evaluated. The binding energy of the most polar molecule (H2O) was found to be more than six times higher than that of H2, indicating a significant enhancement of the nanotube tip's affinity toward polar gases. Thus, this functionalization is beneficial for enhancing the capability of highly packed functionalized VA-CNT membranes to purify CH4/H2 gas mixtures.
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Affiliation(s)
- Atyeh Rahmanzadeh
- Dipartimento di Fisica, Università Della Calabria, 87036 Rende, Italy;
| | - Nasser AL-Hamdani
- Institute on Membrane Technology, ITM-CNR, Ponte P. Bucci, Cubo 17/c, 87036 Rende, Italy;
| | - Evangelos P. Favvas
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research “Demokritos”, Aghia Paraskevi, 153 41 Athens, Greece;
| | - Giorgio De Luca
- Institute on Membrane Technology, ITM-CNR, Ponte P. Bucci, Cubo 17/c, 87036 Rende, Italy;
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4
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Kim M, Choi W, Lee CH, Kim DW. 2D MOFs and Zeolites for Composite Membrane and Gas Separation Applications: A Brief Review. ACS MATERIALS AU 2024; 4:148-161. [PMID: 38496048 PMCID: PMC10941277 DOI: 10.1021/acsmaterialsau.3c00072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/16/2023] [Accepted: 11/20/2023] [Indexed: 03/19/2024]
Abstract
Commercial membranes have predominantly been fabricated from polymers due to their economic viability and processability. This choice offers significant advantages in energy efficiency, cost-effectiveness, and operational simplicity compared to conventional separation techniques like distillation. However, polymeric membranes inherently exhibit a trade-off between their permeability and selectivity, which is summarized in the Robeson upper bound. To potentially surpass these limitations, mixed-matrix membranes (MMMs) can be an alternative solution, which can be constructed by combining polymers with inorganic additives such as metal-organic frameworks (MOFs) and zeolites. Incorporating high-aspect-ratio fillers like MOF nanosheets and zeolite nanosheets is of significant importance. This incorporation not only enhances the efficiency of separation processes but also reinforces the mechanical robustness of the membranes. We outline synthesis techniques for producing two-dimensional (2D) crystals (including nanocrystals with high aspect ratio) and provide examples of their integration into membranes to customize separation performances. Moreover, we propose a potential trajectory for research in the area of high-aspect-ratio materials-based MMMs, supported by a mathematical-model-based performance prediction.
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Affiliation(s)
- Minsu Kim
- Department of Chemical and
Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Wooyoung Choi
- Department of Chemical and
Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Choong Hoo Lee
- Department of Chemical and
Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Dae Woo Kim
- Department of Chemical and
Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul 03722, Republic of Korea
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5
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Bondaz L, Ronghe A, Li S, Čerņevičs K, Hao J, Yazyev OV, Ayappa KG, Agrawal KV. Selective Photonic Gasification of Strained Oxygen Clusters on Graphene for Tuning Pore Size in the Å Regime. JACS AU 2023; 3:2844-2854. [PMID: 37885574 PMCID: PMC10598578 DOI: 10.1021/jacsau.3c00395] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/07/2023] [Accepted: 09/14/2023] [Indexed: 10/28/2023]
Abstract
Controlling the size of single-digit pores, such as those in graphene, with an Å resolution has been challenging due to the limited understanding of pore evolution at the atomic scale. The controlled oxidation of graphene has led to Å-scale pores; however, obtaining a fine control over pore evolution from the pore precursor (i.e., the oxygen cluster) is very attractive. Herein, we introduce a novel "control knob" for gasifying clusters to form pores. We show that the cluster evolves into a core/shell structure composed of an epoxy group surrounding an ether core in a bid to reduce the lattice strain at the cluster core. We then selectively gasified the strained core by exposing it to 3.2 eV of light at room temperature. This allowed for pore formation with improved control compared to thermal gasification. This is because, for the latter, cluster-cluster coalescence via thermally promoted epoxy diffusion cannot be ruled out. Using the oxidation temperature as a control knob, we were able to systematically increase the pore density while maintaining a narrow size distribution. This allowed us to increase H2 permeance as well as H2 selectivity. We further show that these pores could differentiate CH4 from N2, which is considered to be a challenging separation. Dedicated molecular dynamics simulations and potential of mean force calculations revealed that the free energy barrier for CH4 translocation through the pores was lower than that for N2. Overall, this study will inspire research on the controlled manipulation of clusters for improved precision in incorporating Å-scale pores in graphene.
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Affiliation(s)
- Luc Bondaz
- Laboratory
of Advanced Separations, Institute of Chemical
Sciences & Engineering, École Polytechnique Fédérale
de Lausanne (EPFL), CH-1950 Sion, Switzerland
| | - Anshaj Ronghe
- Department
of Chemical Engineering, Indian Institute
of Science, Bangalore 560012, India
| | - Shaoxian Li
- Laboratory
of Advanced Separations, Institute of Chemical
Sciences & Engineering, École Polytechnique Fédérale
de Lausanne (EPFL), CH-1950 Sion, Switzerland
| | | | - Jian Hao
- Laboratory
of Advanced Separations, Institute of Chemical
Sciences & Engineering, École Polytechnique Fédérale
de Lausanne (EPFL), CH-1950 Sion, Switzerland
| | - Oleg V. Yazyev
- Institute
of Physics, EPFL, Lausanne CH-1015, Switzerland
| | - K. Ganapathy Ayappa
- Department
of Chemical Engineering, Indian Institute
of Science, Bangalore 560012, India
| | - Kumar Varoon Agrawal
- Laboratory
of Advanced Separations, Institute of Chemical
Sciences & Engineering, École Polytechnique Fédérale
de Lausanne (EPFL), CH-1950 Sion, Switzerland
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6
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Single-layered fluorinated graphene nanopores for H2/CH4 and H2/CO2 separation with high efficiency and selectivity. J Mol Model 2022; 28:403. [DOI: 10.1007/s00894-022-05400-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 11/24/2022] [Indexed: 11/30/2022]
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7
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Huang S, Villalobos LF, Li S, Vahdat MT, Chi HY, Hsu KJ, Bondaz L, Boureau V, Marzari N, Agrawal KV. In Situ Nucleation-Decoupled and Site-Specific Incorporation of Å-Scale Pores in Graphene Via Epoxidation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2206627. [PMID: 36271513 DOI: 10.1002/adma.202206627] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 10/10/2022] [Indexed: 06/16/2023]
Abstract
Generating pores in graphene by decoupled nucleation and expansion is desired to achieve a fine control over the porosity, and is desired to advance several applications. Herein, epoxidation is introduced, which is the formation of nanosized epoxy clusters on the graphitic lattice as nucleation sites without forming pores. In situ gasification of clusters inside a transmission electron microscope shows that pores are generated precisely at the site of the clusters by surpassing an energy barrier of 1.3 eV. Binding energy predictions using ab initio calculations combined with the cluster nucleation theory reveal the structure of the epoxy clusters and indicate that the critical cluster is an epoxy dimer. Finally, it is shown that the cluster gasification can be manipulated to form Å-scale pores which then effectively sieve gas molecules based on their size. This decoupled cluster nucleation and pore formation will likely pave the way for an independent control of pore size and density.
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Affiliation(s)
- Shiqi Huang
- Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion, CH-1950, Switzerland
| | - Luis Francisco Villalobos
- Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion, CH-1950, Switzerland
| | - Shaoxian Li
- Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion, CH-1950, Switzerland
| | - Mohammad Tohidi Vahdat
- Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion, CH-1950, Switzerland
- Theory and Simulation of Materials (THEOS) and National Centre for Computational Design and Discovery of Novel Materials (MARVEL), EPFL, Lausanne, CH-1015, Switzerland
| | - Heng-Yu Chi
- Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion, CH-1950, Switzerland
| | - Kuang-Jung Hsu
- Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion, CH-1950, Switzerland
| | - Luc Bondaz
- Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion, CH-1950, Switzerland
| | - Victor Boureau
- Interdisciplinary Center for Electron Microscopy, EPFL, Lausanne, CH-1015, Switzerland
| | - Nicola Marzari
- Theory and Simulation of Materials (THEOS) and National Centre for Computational Design and Discovery of Novel Materials (MARVEL), EPFL, Lausanne, CH-1015, Switzerland
| | - Kumar Varoon Agrawal
- Laboratory of Advanced Separations (LAS), École Polytechnique Fédérale de Lausanne (EPFL), Sion, CH-1950, Switzerland
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8
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Keshebo DL, Darge HF, Hu CC, Tsai HC, Su CJ, Sun YM, Hung WS, Wang CF, Lee KR, Lai JY. Exfoliation of MoS2 nanosheets using stimuli responsive poly (N-isopropylacrylamide-co-allylamine) for multi-functional nanofiltration membranes preparation. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.121080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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9
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Ashirov T, Siena JS, Zhang M, Ozgur Yazaydin A, Antonietti M, Coskun A. Fast light-switchable polymeric carbon nitride membranes for tunable gas separation. Nat Commun 2022; 13:7299. [DOI: 10.1038/s41467-022-35013-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 11/14/2022] [Indexed: 11/28/2022] Open
Abstract
AbstractSwitchable gas separation membranes are intriguing systems for regulating the transport properties of gases. However, existing stimuli-responsive gas separation membranes suffer from either very slow response times or require high energy input for switching to occur. Accordingly, herein, we introduced light-switchable polymeric carbon nitride (pCN) gas separation membranes with fast response times prepared from melamine precursor through in-situ formation and deposition of pCN onto a porous support using chemical vapor deposition. Our systematic analysis revealed that the gas transport behavior upon light irradiation is fully governed by the polarizability of the permeating gas and its interaction with the charged pCN surface, and can be easily tuned either by controlling the power of the light and/or the duration of irradiation. We also demonstrated that gases with higher polarizabilities such as CO2 can be separated from gases with lower polarizability like H2 and He effectively with more than 22% increase in the gas/CO2 selectivity upon light irradiation. The membranes also exhibited fast response times (<1 s) and can be turned “on” and “off” using a single light source at 550 nm.
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10
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Ashirov T, Siena JS, Zhang M, Ozgur Yazaydin A, Antonietti M, Coskun A. Fast light-switchable polymeric carbon nitride membranes for tunable gas separation. Nat Commun 2022; 13:7299. [DOI: https:/doi.org/10.1038/s41467-022-35013-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 11/14/2022] [Indexed: 07/03/2024] Open
Abstract
AbstractSwitchable gas separation membranes are intriguing systems for regulating the transport properties of gases. However, existing stimuli-responsive gas separation membranes suffer from either very slow response times or require high energy input for switching to occur. Accordingly, herein, we introduced light-switchable polymeric carbon nitride (pCN) gas separation membranes with fast response times prepared from melamine precursor through in-situ formation and deposition of pCN onto a porous support using chemical vapor deposition. Our systematic analysis revealed that the gas transport behavior upon light irradiation is fully governed by the polarizability of the permeating gas and its interaction with the charged pCN surface, and can be easily tuned either by controlling the power of the light and/or the duration of irradiation. We also demonstrated that gases with higher polarizabilities such as CO2 can be separated from gases with lower polarizability like H2 and He effectively with more than 22% increase in the gas/CO2 selectivity upon light irradiation. The membranes also exhibited fast response times (<1 s) and can be turned “on” and “off” using a single light source at 550 nm.
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11
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Hansen solubility parameters-guided mixed matrix membranes with linker-exchanged metal-organic framework fillers showing enhanced gas separation performance. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.121238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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12
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Choi E, Choi JI, Kim Y, Kim YJ, Eum K, Choi Y, Kwon O, Kim M, Choi W, Ji H, Jang SS, Kim DW. Graphene Nanoribbon Hybridization of Zeolitic Imidazolate Framework Membranes for Intrinsic Molecular Separation. Angew Chem Int Ed Engl 2022; 61:e202214269. [DOI: 10.1002/anie.202214269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Eunji Choi
- Department of Chemical and Biomolecular Engineering Yonsei University Yonsei-ro 50, Seodaemun-gu Seoul 03722 (Republic of Korea
| | - Ji Il Choi
- School of Materials Science and Engineering Georgia Institute of Technology 771 Ferst Drive NW Atlanta USA
| | - Yong‐Jae Kim
- Department of Chemical and Biomolecular Engineering Korea Advanced Institute of Science and Technology Daehak-ro 291, Yuseong-gu Daejeon 34141 (Republic of Korea
| | - Yeong Jae Kim
- Department of Chemical Engineering Soongsil University Sangdo-ro 369, Dongjak-gu Seoul 06978 (Republic of Korea
| | - Kiwon Eum
- Department of Chemical Engineering Soongsil University Sangdo-ro 369, Dongjak-gu Seoul 06978 (Republic of Korea
| | - Yunkyu Choi
- Department of Chemical and Biomolecular Engineering Yonsei University Yonsei-ro 50, Seodaemun-gu Seoul 03722 (Republic of Korea
| | - Ohchan Kwon
- Department of Chemical and Biomolecular Engineering Yonsei University Yonsei-ro 50, Seodaemun-gu Seoul 03722 (Republic of Korea
| | - Minsu Kim
- Department of Chemical and Biomolecular Engineering Yonsei University Yonsei-ro 50, Seodaemun-gu Seoul 03722 (Republic of Korea
| | - Wooyoung Choi
- Department of Chemical and Biomolecular Engineering Yonsei University Yonsei-ro 50, Seodaemun-gu Seoul 03722 (Republic of Korea
| | - Hyungjoon Ji
- Department of Chemical and Biomolecular Engineering Yonsei University Yonsei-ro 50, Seodaemun-gu Seoul 03722 (Republic of Korea
| | - Seung Soon Jang
- School of Materials Science and Engineering Georgia Institute of Technology 771 Ferst Drive NW Atlanta USA
| | - Dae Woo Kim
- Department of Chemical and Biomolecular Engineering Yonsei University Yonsei-ro 50, Seodaemun-gu Seoul 03722 (Republic of Korea
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13
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Polyethylene oxide-intercalated nanoporous graphene membranes for ultrafast H2/CO2 separation: Role of graphene confinement effect on gas molecule binding. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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