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Ji Z, Zhou Y, Chen C, Yuan D, Wu M, Hong M. Ideal Cage-like Pores for Molecular Sieving of Butane Isomers with High Purity and Record Productivity. Angew Chem Int Ed Engl 2024; 63:e202319674. [PMID: 38634325 DOI: 10.1002/anie.202319674] [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: 12/19/2023] [Revised: 04/02/2024] [Accepted: 04/17/2024] [Indexed: 04/19/2024]
Abstract
n-C4H10 and iso-C4H10 are both important petrochemical raw materials. Considering the coexistence of the isomers in the production process, it is necessary to achieve their efficient separation through an economical way. However, to obtain high-purity n-C4H10 and iso-C4H10 in one-step separation process, developing iso-C4H10-exclusion adsorbents with high n-C4H10 adsorption capacity is crucial. Herein, we report a cage-like MOF (SIFSIX-Cu-TPA) with small windows and large cavities which can selectively allow smaller n-C4H10 enter the pore and accommodate a large amount of n-C4H10 simultaneously. Adsorption isotherms reveal that SIFSIX-Cu-TPA not only completely excludes iso-C4H10 in a wide temperature range, but also exhibits a very high n-C4H10 adsorption capacity of 94.2 cm3 g-1 at 100 kPa and 298 K, which is the highest value among iso-C4H10-exclusion-type adsorbents. Breakthrough experiments show that SIFSIX-Cu-TPA has excellent n/iso-C4H10 separation performance and can achieve a record-high productivity of iso-C4H10 (3.2 mol kg-1) with high purity (>99.95 %) as well as 3.0 mol kg-1 of n-C4H10 (>99 %) in one separation circle. More importantly, SIFSIX-Cu-TPA can realize the efficient separation of butanes at different flow rates, temperatures, as well as under high humid condition, which indicates that SIFSIX-Cu-TPA can be deemed as an ideal platform for industrial butane isomers separation.
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Affiliation(s)
- Zhenyu Ji
- State Key Lab of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Yunzhe Zhou
- State Key Lab of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
| | - Cheng Chen
- State Key Lab of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
| | - Daqiang Yuan
- State Key Lab of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
| | - Mingyan Wu
- State Key Lab of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Maochun Hong
- State Key Lab of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
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Ma B, Hu P, Zou L, Zhu Q, Zhang L, Ishikawa S, Ueda W, Li Y, Zhang Z. A Zeolitic Octahedral Metal Oxide with Ultrahigh Porosity for High-temperature and High-humidity Alkyne/Alkene Separation. Angew Chem Int Ed Engl 2024; 63:e202406374. [PMID: 38627207 DOI: 10.1002/anie.202406374] [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: 04/03/2024] [Indexed: 05/16/2024]
Abstract
Zeolitic octahedral metal oxide is a newly synthesized all-inorganic zeolitic material and has been used for adsorption, separation, and catalysis. Herein, a new zeolitic octahedral metal oxide was synthesized and characterized. The porous framework was established through the assembly of [P2Mo13O50] clusters with PO4 linkers. Guest molecules occupied the framework, which could be removed through heat treatment, thereby opening the micropores. The pore characteristics were controlled by the cations within the micropore, enabling the adjustment of the interactions with alkynes and alkenes. This resulted in good separation performance of ethylene/acetylene and propylene/propyne even under high temperature and humidity conditions. The high stability of the material enabled the efficient recovery and reuse without discernible loss in the separation performance. Due to the relatively weak interaction between the adsorbed alkyne and the framework, the adsorbent facilitated the recovery of a highly pure alkyne. This feature enhances the practical applicability of the material in various industrial processes.
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Affiliation(s)
- Baokai Ma
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, P. R. China
| | - Panpan Hu
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, P. R. China
| | - Liangcheng Zou
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, P. R. China
| | - Qianqian Zhu
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, P. R. China
| | - Lifeng Zhang
- Zhejiang Hymater New Materials Co., Ltd., Ningbo, Zhejiang, 315034, P. R. China
| | - Satoshi Ishikawa
- Faculty of Engineering, Kanagawa University Rokkakubashi, Kanagawa-ku, Yokohama-shi, Kanagawa, 221-8686, Japan
| | - Wataru Ueda
- Faculty of Engineering, Kanagawa University Rokkakubashi, Kanagawa-ku, Yokohama-shi, Kanagawa, 221-8686, Japan
| | - Yanshuo Li
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, P. R. China
| | - Zhenxin Zhang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, P. R. China
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Wang L, Wu S, Hu J, Jiang Y, Li J, Hu Y, Han Y, Ben T, Chen B, Zhang Y. A novel hydrophobic carborane-hybrid microporous material for reversed C 2H 6 adsorption and efficient C 2H 4/C 2H 6 separation under humid conditions. Chem Sci 2024; 15:5653-5659. [PMID: 38638230 PMCID: PMC11023043 DOI: 10.1039/d4sc00424h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 03/10/2024] [Indexed: 04/20/2024] Open
Abstract
Since ethylene (C2H4) is important feedstock in the chemical industry, developing economical and energy-efficient adsorption separation techniques based on ethane (C2H6)-selective adsorbents to replace the energy-intensive cryogenic distillation is highly demanded, which however remains a daunting challenge. While previous anionic boron cluster hybrid microporous materials display C2H4-selective features, we herein reported that the incorporation of a neutral para-carborane backbone and aliphatic 1,4-diazabicyclo[2.2.2]octane (DABCO) enables the reversed adsorption of C2H6 over C2H4. The generated carborane-hybrid microporous material ZNU-10 (ZNU = Zhejiang Normal University) is highly stable in humid air and maintains good C2H6/C2H4 separation performance under high humidity. Gas loaded single crystal structure and density-functional theory (DFT) calculations revealed that the weakly polarized carborane and DABCO within ZNU-10 induce more specific C-Hδ+⋯Hδ--B dihydrogen bonds and other van der Waals interactions with C2H6, while the suitable pore space allows the high C2H6 uptake. Approximately 14.5 L kg-1 of polymer grade C2H4 can be produced from simulated C2H6/C2H4 (v/v 10/90) mixtures under ambient conditions in a single step, comparable to those of many popular materials.
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Affiliation(s)
- Lingyao Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University Jinhua 321004 China
| | - Shuangshuang Wu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University Jinhua 321004 China
| | - Jianbo Hu
- Zhejiang Lab Hangzhou 311100 P. R. China
| | - Yunjia Jiang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University Jinhua 321004 China
| | - Jiahao Li
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University Jinhua 321004 China
| | - Yongqi Hu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University Jinhua 321004 China
| | - Yan Han
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University Jinhua 321004 China
| | - Teng Ben
- Institute of Advanced Fluorine-Containing Materials, Zhejiang Normal University Jinhua 321004 China
| | - Banglin Chen
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University Jinhua 321004 China
- Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry & Materials Science, Fujian Normal University Fuzhou 350007 P. R. China
| | - Yuanbin Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University Jinhua 321004 China
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Li S, Li Q, Chen T, Ji Z, Li G, Wu M, Meng L, Nan Z, Wang W, Zhuo Z, Fan F, Huang Y. Temperature-Dependent Separation of CO 2 from Light Hydrocarbons in a Porous Self-Assembly of Vertexes Sharing Octahedra. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308028. [PMID: 38308108 PMCID: PMC11005747 DOI: 10.1002/advs.202308028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/14/2024] [Indexed: 02/04/2024]
Abstract
Design of flexible porous materials where the diffusion of guest molecules is regulated by the dynamics of contracted pore aperture is challenging. Here, a flexible porous self-assembly consisting of 1D channels with dynamic bottleneck gates is reported. The dynamic pendant naphthimidazolylmethyl moieties at the channel necks provide kinetic gate function, that enables unusual adsorption for light hydrocarbons. The adsorption for CO2 is mainly dominated by thermodynamics with the uptakes decreasing with increasing temperature, whereas the adsorptions for larger hydrocarbons are controlled by both thermodynamics and kinetics resulting in an uptake maximum at a temperature threshold. Such an unusual adsorption enables temperature-dependent separation of CO2 from the corresponding hydrocarbons.
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Affiliation(s)
- Shun Li
- CAS Key Laboratory of Design and Assembly of Functional Nanostructuresand Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional MaterialsXiamen Institute of Rare Earth MaterialsHaixi InstitutesChinese Academy of SciencesXiamenFujian361021China
| | - Qing Li
- CAS Key Laboratory of Design and Assembly of Functional Nanostructuresand Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional MaterialsXiamen Institute of Rare Earth MaterialsHaixi InstitutesChinese Academy of SciencesXiamenFujian361021China
| | - Ting Chen
- CAS Key Laboratory of Design and Assembly of Functional Nanostructuresand Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional MaterialsXiamen Institute of Rare Earth MaterialsHaixi InstitutesChinese Academy of SciencesXiamenFujian361021China
| | - Zhen‐Yu Ji
- State Key Laboratory of Structure ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002China
| | - Guo‐Ling Li
- CAS Key Laboratory of Design and Assembly of Functional Nanostructuresand Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional MaterialsXiamen Institute of Rare Earth MaterialsHaixi InstitutesChinese Academy of SciencesXiamenFujian361021China
| | - Ming‐Yan Wu
- State Key Laboratory of Structure ChemistryFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002China
| | - Li‐Yi Meng
- CAS Key Laboratory of Design and Assembly of Functional Nanostructuresand Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional MaterialsXiamen Institute of Rare Earth MaterialsHaixi InstitutesChinese Academy of SciencesXiamenFujian361021China
| | - Zi‐Ang Nan
- CAS Key Laboratory of Design and Assembly of Functional Nanostructuresand Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional MaterialsXiamen Institute of Rare Earth MaterialsHaixi InstitutesChinese Academy of SciencesXiamenFujian361021China
| | - Wei Wang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructuresand Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional MaterialsXiamen Institute of Rare Earth MaterialsHaixi InstitutesChinese Academy of SciencesXiamenFujian361021China
| | - Zhu Zhuo
- CAS Key Laboratory of Design and Assembly of Functional Nanostructuresand Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional MaterialsXiamen Institute of Rare Earth MaterialsHaixi InstitutesChinese Academy of SciencesXiamenFujian361021China
| | - Fengru Fan
- State Key Laboratory of Physical Chemistry of Solid SurfacesiChEMCollege of Chemistry and Chemical EngineeringInnovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM)Xiamen UniversityXiamen361005China
| | - You‐Gui Huang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructuresand Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian350002China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional MaterialsXiamen Institute of Rare Earth MaterialsHaixi InstitutesChinese Academy of SciencesXiamenFujian361021China
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Xiao C, Tian J, Chen Q, Hong M. Water-stable metal-organic frameworks (MOFs): rational construction and carbon dioxide capture. Chem Sci 2024; 15:1570-1610. [PMID: 38303941 PMCID: PMC10829030 DOI: 10.1039/d3sc06076d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 01/03/2024] [Indexed: 02/03/2024] Open
Abstract
Metal-organic frameworks (MOFs) are considered to be a promising porous material due to their excellent porosity and chemical tailorability. However, due to the relatively weak strength of coordination bonds, the stability (e.g., water stability) of MOFs is usually poor, which severely inhibits their practical applications. To prepare water-stable MOFs, several important strategies such as increasing the bonding strength of building units and introducing hydrophobic units have been proposed, and many MOFs with excellent water stability have been prepared. Carbon dioxide not only causes a range of climate and health problems but also is a by-product of some important chemicals (e.g., natural gas). Due to their excellent adsorption performances, MOFs are considered as a promising adsorbent that can capture carbon dioxide efficiently and energetically, and many water-stable MOFs have been used to capture carbon dioxide in various scenarios, including flue gas decarbonization, direct air capture, and purified crude natural gas. In this review, we first introduce the design and synthesis of water-stable MOFs and then describe their applications in carbon dioxide capture, and finally provide some personal comments on the challenges facing these areas.
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Affiliation(s)
- Cao Xiao
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Jindou Tian
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 P. R. China
| | - Qihui Chen
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Maochun Hong
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
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Zhang Y, Sun W, Luan B, Li J, Luo D, Jiang Y, Wang L, Chen B. Topological Design of Unprecedented Metal-Organic Frameworks Featuring Multiple Anion Functionalities and Hierarchical Porosity for Benchmark Acetylene Separation. Angew Chem Int Ed Engl 2023; 62:e202309925. [PMID: 37458603 DOI: 10.1002/anie.202309925] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 07/17/2023] [Indexed: 08/04/2023]
Abstract
Separation of acetylene (C2 H2 ) from carbon dioxide (CO2 ) or ethylene (C2 H4 ) is industrially important but still challenging so far. Herein, we developed two novel robust metal organic frameworks AlFSIX-Cu-TPBDA (ZNU-8) with znv topology and SIFSIX-Cu-TPBDA (ZNU-9) with wly topology for efficient capture of C2 H2 from CO2 and C2 H4 . Both ZNU-8 and ZNU-9 feature multiple anion functionalities and hierarchical porosity. Notably, ZNU-9 with more anionic binding sites and three distinct cages displays both an extremely large C2 H2 capacity (7.94 mmol/g) and a high C2 H2 /CO2 (10.3) or C2 H2 /C2 H4 (11.6) selectivity. The calculated capacity of C2 H2 per anion (4.94 mol/mol at 1 bar) is the highest among all the anion pillared metal organic frameworks. Theoretical calculation indicated that the strong cooperative hydrogen bonds exist between acetylene and the pillared SiF6 2- anions in the confined cavity, which is further confirmed by in situ IR spectra. The practical separation performance was explicitly demonstrated by dynamic breakthrough experiments with equimolar C2 H2 /CO2 mixtures and 1/99 C2 H2 /C2 H4 mixtures under various conditions with excellent recyclability and benchmark productivity of pure C2 H2 (5.13 mmol/g) or C2 H4 (48.57 mmol/g).
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Affiliation(s)
- Yuanbin Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, 321004, Jinhua, P. R. China
| | - Wanqi Sun
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, 321004, Jinhua, P. R. China
| | - Binquan Luan
- IBM Thomas J. Watson Research, 10598, Yorktown Heights, NY, USA
| | - Jiahao Li
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, 321004, Jinhua, P. R. China
| | - Dong Luo
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, 510632, Guangzhou, P. R. China
| | - Yunjia Jiang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, 321004, Jinhua, P. R. China
| | - Lingyao Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, 321004, Jinhua, P. R. China
| | - Banglin Chen
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, 321004, Jinhua, P. R. China
- Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry & Materials Science, Fujian Normal University, 350007, Fuzhou, China
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Gao MY, Bezrukov AA, Song BQ, He M, Nikkhah SJ, Wang SQ, Kumar N, Darwish S, Sensharma D, Deng C, Li J, Liu L, Krishna R, Vandichel M, Yang S, Zaworotko MJ. Highly Productive C 3H 4/C 3H 6 Trace Separation by a Packing Polymorph of a Layered Hybrid Ultramicroporous Material. J Am Chem Soc 2023; 145:11837-11845. [PMID: 37204941 DOI: 10.1021/jacs.3c03505] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Ultramicroporous materials can be highly effective at trace gas separations when they offer a high density of selective binding sites. Herein, we report that sql-NbOFFIVE-bpe-Cu, a new variant of a previously reported ultramicroporous square lattice, sql, topology material, sql-SIFSIX-bpe-Zn, can exist in two polymorphs. These polymorphs, sql-NbOFFIVE-bpe-Cu-AA (AA) and sql-NbOFFIVE-bpe-Cu-AB (AB), exhibit AAAA and ABAB packing of the sql layers, respectively. Whereas NbOFFIVE-bpe-Cu-AA (AA) is isostructural with sql-SIFSIX-bpe-Zn, each exhibiting intrinsic 1D channels, sql-NbOFFIVE-bpe-Cu-AB (AB) has two types of channels, the intrinsic channels and extrinsic channels between the sql networks. Gas and temperature induced transformations of the two polymorphs of sql-NbOFFIVE-bpe-Cu were investigated by pure gas sorption, single-crystal X-ray diffraction (SCXRD), variable temperature powder X-ray diffraction (VT-PXRD), and synchrotron PXRD. We observed that the extrinsic pore structure of AB resulted in properties with potential for selective C3H4/C3H6 separation. Subsequent dynamic gas breakthrough measurements revealed exceptional experimental C3H4/C3H6 selectivity (270) and a new benchmark for productivity (118 mmol g-1) of polymer grade C3H6 (purity >99.99%) from a 1:99 C3H4/C3H6 mixture. Structural analysis, gas sorption studies, and gas adsorption kinetics enabled us to determine that a binding "sweet spot" for C3H4 in the extrinsic pores is behind the benchmark separation performance. Density-functional theory (DFT) calculations and Canonical Monte Carlo (CMC) simulations provided further insight into the binding sites of C3H4 and C3H6 molecules within these two hybrid ultramicroporous materials, HUMs. These results highlight, to our knowledge for the first time, how pore engineering through the study of packing polymorphism in layered materials can dramatically change the separation performance of a physisorbent.
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Affiliation(s)
- Mei-Yan Gao
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland
| | - Andrey A Bezrukov
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland
| | - Bai-Qiao Song
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland
| | - Meng He
- Department of Chemistry, University of Manchester, Manchester, M13 9PL, U.K
| | - Sousa Javan Nikkhah
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland
| | - Shi-Qiang Wang
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way 138634, Singapore
| | - Naveen Kumar
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland
| | - Shaza Darwish
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland
| | - Debobroto Sensharma
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland
| | - Chenghua Deng
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland
| | - Jiangnan Li
- Department of Chemistry, University of Manchester, Manchester, M13 9PL, U.K
| | - Lunjie Liu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Rajamani Krishna
- Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, Netherlands
| | - Matthias Vandichel
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland
| | - Sihai Yang
- Department of Chemistry, University of Manchester, Manchester, M13 9PL, U.K
| | - Michael J Zaworotko
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland
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