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Abylgazina L, Senkovska I, Engemann R, Bönisch N, Gorelik TE, Bachetzky C, Kaiser U, Brunner E, Kaskel S. Chemoselectivity Inversion of Responsive Metal-Organic Frameworks by Particle Size Tuning in the Micrometer Regime. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307285. [PMID: 38225688 DOI: 10.1002/smll.202307285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/30/2023] [Indexed: 01/17/2024]
Abstract
Gated adsorption is one of the unique physical properties of flexible metal-organic frameworks with high application potential in selective adsorption and sensing of molecules. Despite recent studies that have provided some guidelines in understanding and designing structural flexibility for controlling gate opening by chemical modification of the secondary building units, currently, there is no established strategy to design a flexible MOF showing selective gated adsorption for a specific guest molecule. In a present contribution it is demonstrated for the first time, that the selectivity in the gate opening of a particular compound can be tuned, changed, and even reversed using particle size engineering DUT-8(Zn) ([Zn2(2,6-ndc)2(dabco)]n, 2,6-ndc = 2,6-naphthalenedicarboxylate, dabco = 1,4-diazabicyclo-[2.2.2]-octane, DUT = Dresden University of Technology) experiences phase transition from open (op) to closed (cp) pore phase upon removal of solvent from the pores. Microcrystals show selective reopening in the presence of dichloromethane (DCM) over alcohols. Crystal downsizing to micron size unexpectedly reverses the gate opening selectivity, causing DUT-8(Zn) to open its nanosized pores for alcohols but suppressing the responsivity toward DCM.
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Affiliation(s)
- Leila Abylgazina
- Technische Universität Dresden, Bergstr. 66, 01069, Dresden, Germany
| | - Irena Senkovska
- Technische Universität Dresden, Bergstr. 66, 01069, Dresden, Germany
| | - Richard Engemann
- Technische Universität Dresden, Bergstr. 66, 01069, Dresden, Germany
| | - Nadine Bönisch
- Technische Universität Dresden, Bergstr. 66, 01069, Dresden, Germany
| | - Tatiana E Gorelik
- Electron Microscopy Group of Materials Science (EMMS), Central Facility for Electron Microscopy, Universität Ulm, Oberberghof 3/1, 89081, Ulm, Germany
- Department Structure and Function of Proteins, Helmholtz Centre for Infection Research, Inhoffenstraße 7, 38124, Braunschweig, Germany
- Helmholtz Institute for Pharmaceutical Research Saarland, Helmholtz Centre for Infection Research, Department of Pharmacy, Saarland University, Universitätscampus E8 1, 66123, Saarbrücken, Germany
| | | | - Ute Kaiser
- Electron Microscopy Group of Materials Science (EMMS), Central Facility for Electron Microscopy, Universität Ulm, Oberberghof 3/1, 89081, Ulm, Germany
| | - Eike Brunner
- Technische Universität Dresden, Bergstr. 66, 01069, Dresden, Germany
| | - Stefan Kaskel
- Technische Universität Dresden, Bergstr. 66, 01069, Dresden, Germany
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2
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Sakanaka Y, Hiraide S, Sugawara I, Uematsu H, Kawaguchi S, Miyahara MT, Watanabe S. Generalised analytical method unravels framework-dependent kinetics of adsorption-induced structural transition in flexible metal-organic frameworks. Nat Commun 2023; 14:6862. [PMID: 37938232 PMCID: PMC10632496 DOI: 10.1038/s41467-023-42448-3] [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: 06/19/2023] [Accepted: 10/10/2023] [Indexed: 11/09/2023] Open
Abstract
Flexible metal-organic frameworks (MOFs) exhibiting adsorption-induced structural transition can revolutionise adsorption separation processes, including CO2 separation, which has become increasingly important in recent years. However, the kinetics of this structural transition remains poorly understood despite being crucial to process design. Here, the CO2-induced gate opening of ELM-11 ([Cu(BF4)2(4,4'-bipyridine)2]n) is investigated by time-resolved in situ X-ray powder diffraction, and a theoretical kinetic model of this process is developed to gain atomistic insight into the transition dynamics. The thus-developed model consists of the differential pressure from the gate opening (indicating the ease of structural transition) and reaction model terms (indicating the transition propagation within the crystal). The reaction model of ELM-11 is an autocatalytic reaction with two pathways for CO2 penetration of the framework. Moreover, gas adsorption analyses of two other flexible MOFs with different flexibilities indicate that the kinetics of the adsorption-induced structural transition is highly dependent on framework structure.
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Affiliation(s)
- Yuta Sakanaka
- Department of Chemical Engineering, Kyoto University, Nishikyo, Kyoto, 615-8510, Japan
| | - Shotaro Hiraide
- Department of Chemical Engineering, Kyoto University, Nishikyo, Kyoto, 615-8510, Japan.
| | - Iori Sugawara
- Department of Chemical Engineering, Kyoto University, Nishikyo, Kyoto, 615-8510, Japan
| | - Hajime Uematsu
- Department of Chemical Engineering, Kyoto University, Nishikyo, Kyoto, 615-8510, Japan
| | - Shogo Kawaguchi
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, 1-1-1 Kouto, Sayo, Hyogo, 679-5198, Japan
| | - Minoru T Miyahara
- Department of Chemical Engineering, Kyoto University, Nishikyo, Kyoto, 615-8510, Japan
| | - Satoshi Watanabe
- Department of Chemical Engineering, Kyoto University, Nishikyo, Kyoto, 615-8510, Japan.
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3
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Lutton‐Gething ARBJ, Nangkam LT, Johansson JOW, Pallikara I, Skelton JM, Whitehead GFS, Vitorica‐Yrezabal I, Attfield MP. Breathing Behaviour Modification of Gallium MIL-53 Metal-Organic Frameworks Induced by the Bridging Framework Inorganic Anion. Chemistry 2023; 29:e202203773. [PMID: 36651661 PMCID: PMC10962686 DOI: 10.1002/chem.202203773] [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: 12/02/2022] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 01/19/2023]
Abstract
Controlling aspects of the μ2 -X- bridging anion in the metal-organic framework Ga-MIL-53 [GaX(bdc)] (X- =(OH)- or F- , bdc=1, 4-benzenedicarboxylate) is shown to direct the temperature at which thermally induced breathing transitions of this framework occur. In situ single crystal X-ray diffraction studies reveal that substituting 20 % of (OH)- in [Ga(OH)(bdc)] (1) for F- to produce [Ga(OH)0.8 F0.2 (bdc)] (2) stabilises the large pore (lp) form relative to the narrow pore (np) form, causing a well-defined decrease in the onset of the lp to np transition at higher temperatures, and the adsorption/desorption of nitrogen at lower temperatures through np to lp to intermediate (int) pore transitions. These in situ diffraction studies have also yielded a more plausible crystal structure of the int-[GaX(bdc)] ⋅ H2 O phases and shown that increasing the heating rate to a flash heating regime can enable the int-[GaX(bdc)] ⋅ H2 O to lp-[GaX(bdc)] transition to occur at a lower temperature than np-[GaX(bdc)] via an unreported pathway.
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Affiliation(s)
| | - Lynda T. Nangkam
- Department of ChemistryThe University of ManchesterOxford RoadM13 9PLManchesterUK
| | - Jens O. W. Johansson
- Department of ChemistryThe University of ManchesterOxford RoadM13 9PLManchesterUK
| | - Ioanna Pallikara
- Department of ChemistryThe University of ManchesterOxford RoadM13 9PLManchesterUK
| | - Jonathan M. Skelton
- Department of ChemistryThe University of ManchesterOxford RoadM13 9PLManchesterUK
| | | | | | - Martin P. Attfield
- Department of ChemistryThe University of ManchesterOxford RoadM13 9PLManchesterUK
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4
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Miura H, Bon V, Senkovska I, Ehrling S, Bönisch N, Mäder G, Grünzner S, Khadiev A, Novikov D, Maity K, Richter A, Kaskel S. Spatiotemporal Design of the Metal-Organic Framework DUT-8(M). ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2207741. [PMID: 36349824 DOI: 10.1002/adma.202207741] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 10/23/2022] [Indexed: 06/16/2023]
Abstract
Switchable metal-organic frameworks (MOFs) change their structure in time and selectively open their pores adsorbing guest molecules, leading to highly selective separation, pressure amplification, sensing, and actuation applications. The 3D engineering of MOFs has reached a high level of maturity, but spatiotemporal evolution opens a new perspective toward engineering materials in the 4th dimension (time) by t-axis design, in essence exploiting the deliberate tuning of activation barriers. This work demonstrates the first example in which an explicit temporal engineering of a switchable MOF (DUT-8, [M1 M2 (2,6-ndc)2 dabco]n , 2,6-ndc = 2,6-naphthalene dicarboxylate, dabco = 1,4diazabicyclo[2.2.2]octane, M1 = Ni, M2 = Co) is presented. The temporal response is deliberately tuned by variations in cobalt content. A spectrum of advanced analytical methods is presented for analyzing the switching kinetics stimulated by vapor adsorption using in situ time-resolved techniques ranging from ensemble adsorption and advanced synchrotron X-ray diffraction experiments to individual crystal analysis. A novel analysis technique based on microscopic observation of individual crystals in a microfluidic channel reveals the lowest limit for adsorption switching reported so far. Differences in the spatiotemporal response of crystal ensembles originate from an induction time that varies statistically and widens characteristically with increasing cobalt content reflecting increasing activation barriers.
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Affiliation(s)
- Hiroki Miura
- Inorganic Chemistry I, Technische Universität Dresden, Bergstrasse 66, 01062, Dresden, Germany
- Nippon Steel Corporation, 20-1 Shintomi, Futtsu, Chiba, 293-8511, Japan
| | - Volodymyr Bon
- Inorganic Chemistry I, Technische Universität Dresden, Bergstrasse 66, 01062, Dresden, Germany
| | - Irena Senkovska
- Inorganic Chemistry I, Technische Universität Dresden, Bergstrasse 66, 01062, Dresden, Germany
| | - Sebastian Ehrling
- 3P INSTRUMENTS GmbH & Co. KG, Branch office Leipzig, Bitterfelder Str. 1-5, 04129, Leipzig, Germany
| | - Nadine Bönisch
- Inorganic Chemistry I, Technische Universität Dresden, Bergstrasse 66, 01062, Dresden, Germany
| | - Gerrit Mäder
- Fraunhofer Institute of Materials and Beam Technology, Wintergerbstr. 28, 01277, Dresden, Germany
| | - Stefan Grünzner
- Professur Mikrosystemtechnik, Technische Universität Dresden, 01062, Dresden, Germany
| | - Azat Khadiev
- P23 group, Petra III Synchrotron, DESY, Notkestraße 85, 22607, Hamburg, Germany
| | - Dmitri Novikov
- P23 group, Petra III Synchrotron, DESY, Notkestraße 85, 22607, Hamburg, Germany
| | - Kartik Maity
- Inorganic Chemistry I, Technische Universität Dresden, Bergstrasse 66, 01062, Dresden, Germany
| | - Andreas Richter
- Professur Mikrosystemtechnik, Technische Universität Dresden, 01062, Dresden, Germany
| | - Stefan Kaskel
- Inorganic Chemistry I, Technische Universität Dresden, Bergstrasse 66, 01062, Dresden, Germany
- Fraunhofer Institute of Materials and Beam Technology, Wintergerbstr. 28, 01277, Dresden, Germany
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5
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De A, Maliuta M, Senkovska I, Kaskel S. The Dilemma of Reproducibility of Gating Isotherms for Flexible MOFs. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:14073-14083. [PMID: 36350052 DOI: 10.1021/acs.langmuir.2c01999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Porous materials receive a high level of scientific and technological interest due to their applications in various fields such as adsorption, separation and storage, catalysis, ion exchange, nanotechnology, etc. Gas adsorption is a well-established tool for the characterization of the texture of porous solids. Physisorption isotherms are generally expected to be well reproducible for rigid adsorbents, but this is not always the case for nonrigid (flexible) materials. The presence of a metastability region and sensitivity of the activation barriers to the material's texture often influence the isotherms' run. Here, we address the complexity that arises in terms of reproducibility and sample handling for flexible metal-organic frameworks, with the example of DUT-8(Ni). It belongs to the group of "gate opening" metal-organic frameworks and is a typical representative of the pillared layer compounds. We propose characteristic parameters for the analysis and comparison of adsorption isotherms, showing the "gate opening" step, associated with the adsorption-induced solid-state phase transition. A set of 50 nitrogen physisorption isotherms measured at 77 K were analyzed and correlated with the synthetic and outgassing conditions. The study highlights the importance of accurate descriptions and record-keeping of experimental details and their role in the replication of scientific results.
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Affiliation(s)
- Ankita De
- Chair of Inorganic Chemistry I, Technische Universität Dresden, Bergstr. 66, 01069 Dresden, Germany
| | - Mariia Maliuta
- Chair of Inorganic Chemistry I, Technische Universität Dresden, Bergstr. 66, 01069 Dresden, Germany
| | - Irena Senkovska
- Chair of Inorganic Chemistry I, Technische Universität Dresden, Bergstr. 66, 01069 Dresden, Germany
| | - Stefan Kaskel
- Chair of Inorganic Chemistry I, Technische Universität Dresden, Bergstr. 66, 01069 Dresden, Germany
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6
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Bon V, Busov N, Senkovska I, Bönisch N, Abylgazina L, Khadiev A, Novikov D, Kaskel S. The importance of crystal size for breathing kinetics in MIL-53(Al). Chem Commun (Camb) 2022; 58:10492-10495. [PMID: 36043355 DOI: 10.1039/d2cc02662g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein we analyze the switching kinetics of a breathing framework MIL-53(Al) with respect to different crystallite size regimes. Synchrotron time-resolved powder X-ray diffraction (PXRD) and adsorption rate analysis of n-butane physisorption at 298 K demonstrate the decisive role of crystal size affecting the time domain of breathing transitions in MIL-53(Al).
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Affiliation(s)
- Volodymyr Bon
- Chair of Inorganic Chemistry I, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany.
| | - Nikita Busov
- Chair of Inorganic Chemistry I, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany.
| | - Irena Senkovska
- Chair of Inorganic Chemistry I, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany.
| | - Nadine Bönisch
- Chair of Inorganic Chemistry I, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany.
| | - Leila Abylgazina
- Chair of Inorganic Chemistry I, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany.
| | - Azat Khadiev
- P23 group, Petra III Synchrotron, DESY, Notkestraße 85, 22607, Hamburg, Germany
| | - Dmitri Novikov
- P23 group, Petra III Synchrotron, DESY, Notkestraße 85, 22607, Hamburg, Germany
| | - Stefan Kaskel
- Chair of Inorganic Chemistry I, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany.
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7
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Gittins JW, Balhatchet CJ, Fairclough SM, Forse AC. Enhancing the energy storage performances of metal-organic frameworks by controlling microstructure. Chem Sci 2022; 13:9210-9219. [PMID: 36092998 PMCID: PMC9384154 DOI: 10.1039/d2sc03389e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 07/17/2022] [Indexed: 11/28/2022] Open
Abstract
Metal-organic frameworks (MOFs) are among the most promising materials for next-generation energy storage systems. However, the impact of particle morphology on the energy storage performances of these frameworks is poorly understood. To address this, here we use coordination modulation to synthesise three samples of the conductive MOF Cu3(HHTP)2 (HHTP = 2,3,6,7,10,11-hexahydroxytriphenylene) with distinct microstructures. Supercapacitors assembled with these samples conclusively demonstrate that sample microstructure and particle morphology have a significant impact on the energy storage performances of MOFs. Samples with 'flake-like' particles, with a pore network comprised of many short pores, display superior capacitive performances than samples with either 'rod-like' or strongly agglomerated particles. The results of this study provide a target microstructure for conductive MOFs for energy storage applications.
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Affiliation(s)
- Jamie W Gittins
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Chloe J Balhatchet
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Simon M Fairclough
- Department of Materials Science & Metallurgy, University of Cambridge 27 Charles Babbage Road Cambridge CB3 0FS UK
| | - Alexander C Forse
- Yusuf Hamied Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
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8
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Bondorf L, Fiorio JL, Bon V, Zhang L, Maliuta M, Ehrling S, Senkovska I, Evans JD, Joswig JO, Kaskel S, Heine T, Hirscher M. Isotope-selective pore opening in a flexible metal-organic framework. SCIENCE ADVANCES 2022; 8:eabn7035. [PMID: 35417239 PMCID: PMC9007508 DOI: 10.1126/sciadv.abn7035] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/23/2022] [Indexed: 06/14/2023]
Abstract
Flexible metal-organic frameworks that show reversible guest-induced phase transitions between closed and open pore phases have enormous potential for highly selective, energy-efficient gas separations. Here, we present the gate-opening process of DUT-8(Ni) that selectively responds to D2, whereas no response is observed for H2 and HD. In situ neutron diffraction directly reveals this pressure-dependent phase transition. Low-temperature thermal desorption spectroscopy measurements indicate an outstanding D2-over-H2 selectivity of 11.6 at 23.3 K, with high D2 uptake. First-principles calculations coupled with statistical thermodynamics predict the isotope-selective gate opening, rationalized by pronounced nuclear quantum effects. Simulations suggest DUT-8(Ni) to remain closed in the presence of HT, while it also opens for DT and T2, demonstrating gate opening as a highly effective approach for isotopolog separation.
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Affiliation(s)
- Linda Bondorf
- Max Planck Institute for Intelligent Systems, Heisenbergstrasse 3, D-70569 Stuttgart, Germany
| | - Jhonatan Luiz Fiorio
- Technische Universität Dresden, School of Science, Faculty of Chemistry and Food Chemistry, Mommsenstr. 13, 01069 Dresden, Germany
| | - Volodymyr Bon
- Technische Universität Dresden, School of Science, Faculty of Chemistry and Food Chemistry, Mommsenstr. 13, 01069 Dresden, Germany
| | - Linda Zhang
- Max Planck Institute for Intelligent Systems, Heisenbergstrasse 3, D-70569 Stuttgart, Germany
| | - Mariia Maliuta
- Technische Universität Dresden, School of Science, Faculty of Chemistry and Food Chemistry, Mommsenstr. 13, 01069 Dresden, Germany
| | - Sebastian Ehrling
- Technische Universität Dresden, School of Science, Faculty of Chemistry and Food Chemistry, Mommsenstr. 13, 01069 Dresden, Germany
| | - Irena Senkovska
- Technische Universität Dresden, School of Science, Faculty of Chemistry and Food Chemistry, Mommsenstr. 13, 01069 Dresden, Germany
| | - Jack D. Evans
- Technische Universität Dresden, School of Science, Faculty of Chemistry and Food Chemistry, Mommsenstr. 13, 01069 Dresden, Germany
- Centre for Advanced Nanomaterials and Department of Chemistry, The University of Adelaide, North Terrace, Adelaide, South Australia 5000, Australia
| | - Jan-Ole Joswig
- Technische Universität Dresden, School of Science, Faculty of Chemistry and Food Chemistry, Mommsenstr. 13, 01069 Dresden, Germany
| | - Stefan Kaskel
- Technische Universität Dresden, School of Science, Faculty of Chemistry and Food Chemistry, Mommsenstr. 13, 01069 Dresden, Germany
| | - Thomas Heine
- Technische Universität Dresden, School of Science, Faculty of Chemistry and Food Chemistry, Mommsenstr. 13, 01069 Dresden, Germany
- Helmholtz-Center Dresden-Rossendorf, Leipzig Research Site, Permoserstr. 15, 04138 Leipzig, Germany
- Department of Chemistry, Yonsei University, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Michael Hirscher
- Max Planck Institute for Intelligent Systems, Heisenbergstrasse 3, D-70569 Stuttgart, Germany
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9
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Wychowaniec JK, Saini H, Scheibe B, Dubal DP, Schneemann A, Jayaramulu K. Hierarchical porous metal–organic gels and derived materials: from fundamentals to potential applications. Chem Soc Rev 2022; 51:9068-9126. [DOI: 10.1039/d2cs00585a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review summarizes recent progress in the development and applications of metal–organic gels (MOGs) and their hybrids and derivatives dividing them into subclasses and discussing their synthesis, design and structure–property relationship.
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Affiliation(s)
- Jacek K. Wychowaniec
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
- AO Research Institute Davos, Clavadelerstrasse 8, 7270, Davos, Switzerland
| | - Haneesh Saini
- Department of Chemistry, Indian Institute of Technology Jammu, Nagrota Bypass Road, Jammu & Kashmir, 181221, India
| | - Błażej Scheibe
- Adam Mickiewicz University in Poznań, NanoBioMedical Centre, Wszechnicy Piastowskiej 3, PL61614 Poznań, Poland
| | - Deepak P. Dubal
- School of Chemistry and Physics, Queensland University of Technology, Gardens Point Campus, Brisbane, QLD 4001, Australia
| | - Andreas Schneemann
- Lehrstuhl für Anorganische Chemie I, Technische Universität Dresden, Bergstr. 66, 01067 Dresden, Germany
| | - Kolleboyina Jayaramulu
- Department of Chemistry, Indian Institute of Technology Jammu, Nagrota Bypass Road, Jammu & Kashmir, 181221, India
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10
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Schneemann A, Jing Y, Evans JD, Toyao T, Hijikata Y, Kamiya Y, Shimizu KI, Burtch NC, Noro SI. Alkyl decorated metal-organic frameworks for selective trapping of ethane from ethylene above ambient pressures. Dalton Trans 2021; 50:10423-10435. [PMID: 34240094 DOI: 10.1039/d1dt01477c] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The trapping of paraffins is beneficial compared to selective olefin adsorption for adsorptive olefin purification from a process engineering point of view. Here we demonstrate the use of a series of Zn2(X-bdc)2(dabco) (where X-bdc2- is bdc2- = 1,4-benzenedicarboxylate with substituting groups X, DM-bdc2- = 2,5-dimethyl-1,4-benzenedicarboxylate or TM-bdc2- = 2,3,5,6-tetramethyl-1,4-benzenedicarboxylate and dabco = diazabicyclo[2.2.2.]octane) metal-organic frameworks (MOFs) for the adsorptive removal of ethane from ethylene streams. The best performing material from this series is Zn2(TM-bdc)2(dabco) (DMOF-TM), which shows a high ethane uptake of 5.31 mmol g-1 at 110 kPa, with a good IAST selectivity of 1.88 towards ethane over ethylene. Through breakthrough measurements a high productivity of 13.1 L kg-1 per breakthrough is revealed with good reproducibility over five consecutive cycles. Molecular simulations show that the methyl groups of DMOF-TM are forming a van der Waals trap with the methylene groups from dabco, snuggly fitting the ethane. Further, rarely used high pressure coadsorption measurements, in pressure regimes that most scientific studies on hydrocarbon separation on MOFs ignore, reveal an increase in ethane capacity and selectivity for binary mixtures with increased pressures. The coadsorption measurements reveal good selectivity of 1.96 at 1000 kPa, which is verified also through IAST calculations up to 3000 kPa. This study overall showcases the opportunities that pore engineering by alkyl group incorporation and pressure increase offer to improve hydrocarbon separation in reticular materials.
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Affiliation(s)
- Andreas Schneemann
- Sandia National Laboratories, 7011 East Avenue, Livermore, CA 94550, USA.
| | - Yuan Jing
- Institute for Catalysis, Hokkaido University, Sapporo 001-0020, Japan
| | - Jack D Evans
- Lehrstuhl für Anorganische Chemie, Technische Universität Dresden, Bergstr. 66, 01069 Dresden, Germany
| | - Takashi Toyao
- Institute for Catalysis, Hokkaido University, Sapporo 001-0020, Japan and Elements Strategy Initiative for Catalysis and Batteries, Kyoto University, Katsura, Kyoto 615-8520, Japan
| | - Yuh Hijikata
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo 001-0021, Japan
| | - Yuichi Kamiya
- Faculty of Environmental Earth Science, Hokkaido University, Sapporo 060-0810, Japan.
| | - Ken-Ichi Shimizu
- Institute for Catalysis, Hokkaido University, Sapporo 001-0020, Japan and Elements Strategy Initiative for Catalysis and Batteries, Kyoto University, Katsura, Kyoto 615-8520, Japan
| | - Nicholas C Burtch
- Sandia National Laboratories, 7011 East Avenue, Livermore, CA 94550, USA.
| | - Shin-Ichiro Noro
- Faculty of Environmental Earth Science, Hokkaido University, Sapporo 060-0810, Japan.
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