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Daglar H, Gulbalkan HC, Aksu GO, Keskin S. Computational Simulations of Metal-Organic Frameworks to Enhance Adsorption Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2405532. [PMID: 39072794 DOI: 10.1002/adma.202405532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 07/08/2024] [Indexed: 07/30/2024]
Abstract
Metal-organic frameworks (MOFs), renowned for their exceptional porosity and crystalline structure, stand at the forefront of gas adsorption and separation applications. Shortly after their discovery through experimental synthesis, computational simulations quickly become an important method in broadening the use of MOFs by offering deep insights into their structural, functional, and performance properties. This review specifically addresses the pivotal role of molecular simulations in enlarging the molecular understanding of MOFs and enhancing their applications, particularly for gas adsorption. After reviewing the historical development and implementation of molecular simulation methods in the field of MOFs, high-throughput computational screening (HTCS) studies used to unlock the potential of MOFs in CO2 capture, CH4 storage, H2 storage, and water harvesting are visited and recent advancements in these adsorption applications are highlighted. The transformative impact of integrating artificial intelligence with HTCS on the prediction of MOFs' performance and directing the experimental efforts on promising materials is addressed. An outlook on current opportunities and challenges in the field to accelerate the adsorption applications of MOFs is finally provided.
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Affiliation(s)
- Hilal Daglar
- Department of Chemical and Biological Engineering, Koç University, Rumelifeneri Yolu, Sariyer, Istanbul, 34450, Turkey
| | - Hasan Can Gulbalkan
- Department of Chemical and Biological Engineering, Koç University, Rumelifeneri Yolu, Sariyer, Istanbul, 34450, Turkey
| | - Gokhan Onder Aksu
- Department of Chemical and Biological Engineering, Koç University, Rumelifeneri Yolu, Sariyer, Istanbul, 34450, Turkey
| | - Seda Keskin
- Department of Chemical and Biological Engineering, Koç University, Rumelifeneri Yolu, Sariyer, Istanbul, 34450, Turkey
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2
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Al-Dayel I, Nadeem MF, Khan MA. Topological analysis of tetracyanobenzene metal-organic framework. Sci Rep 2024; 14:1789. [PMID: 38245615 PMCID: PMC10799943 DOI: 10.1038/s41598-024-52194-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 01/15/2024] [Indexed: 01/22/2024] Open
Abstract
Metal-organic frameworks (MOFs) are vital in modern material science, offering unique properties for gas storage, catalysis, and drug delivery due to their highly porous and customizable structures. Chemical graph theory emerges as a critical tool, providing a mathematical model to represent the molecular structure of these frameworks. Topological indices/molecular descriptors are mathematical formulations applied to molecular models, enabling the analysis of physicochemical properties and circumventing costly lab experiments. These descriptors are crucial for quantitative structure-property and structure-activity relationship studies in mathematical chemistry. In this paper, we study the different molecular descriptors of tetracyanobenzene metal-organic framework. We also give numerical comparison of computed molecular descriptors.
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Affiliation(s)
- Ibrahim Al-Dayel
- Department of Mathematics and Statistics, College of Science Imam Mohammad Ibn Saud Islamic University (IMSIU), P.O. Box-65892, Riyadh, 11566, Saudi Arabia
| | - Muhammad Faisal Nadeem
- Department of Mathematics, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan.
| | - Meraj Ali Khan
- Department of Mathematics and Statistics, College of Science Imam Mohammad Ibn Saud Islamic University (IMSIU), P.O. Box-65892, Riyadh, 11566, Saudi Arabia
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3
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Park H, Kang Y, Kim J. Enhancing Structure-Property Relationships in Porous Materials through Transfer Learning and Cross-Material Few-Shot Learning. ACS APPLIED MATERIALS & INTERFACES 2023; 15:56375-56385. [PMID: 37983088 DOI: 10.1021/acsami.3c10323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2023]
Abstract
Porous materials have emerged as promising solutions for a wide range of energy and environmental applications. However, the asymmetric development in the field of metal-organic frameworks (MOFs) has led to a data imbalance when it comes to MOFs versus other porous materials such as covalent organic frameworks (COFs), porous polymer networks (PPNs), and zeolites. To address this issue, we introduce PMTransformer (Porous Material Transformer), a multimodal Transformer model pretrained on a vast data set of 1.9 million hypothetical porous materials, including metal-organic frameworks, covalent organic frameworks, porous polymer networks, and zeolites. PMTransformer showcases remarkable transfer learning capabilities, resulting in state-of-the-art performance in predicting various porous material properties. To address the challenge of asymmetric data aggregation, we propose cross-material few-shot learning, which leverages the synergistic effect among different porous material classes to enhance the fine-tuning performance with a limited number of examples. As a proof of concept, we demonstrate its effectiveness in predicting band gap values of COFs using the available MOF data in the training set. Moreover, we established cross-material relationships in porous materials by predicting the unseen properties of other classes of porous materials. Our approach presents a new pathway for understanding the underlying relationships among various classes of porous materials, paving the way toward a more comprehensive understanding and design of porous materials.
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Affiliation(s)
- Hyunsoo Park
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291, Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Yeonghun Kang
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291, Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Jihan Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291, Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
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4
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Tang H, Duan L, Jiang J. Leveraging Machine Learning for Metal-Organic Frameworks: A Perspective. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15849-15863. [PMID: 37922472 DOI: 10.1021/acs.langmuir.3c01964] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2023]
Abstract
Metal-organic frameworks (MOFs) have attracted tremendous interest because of their tunable structures, functionalities, and physiochemical properties. The nearly infinite combinations of metal nodes and organic linkers have led to the synthesis of over 100,000 experimental MOFs and the construction of millions of hypothetical counterparts. It is intractable to identify the best candidates in the immense chemical space of MOFs for applications via conventional trial-to-error experiments or brute-force simulations. Over the past several years, machine learning (ML) has substantially transformed the way of MOF discovery, design, and synthesis. Driven by the abundant data from experiments or simulations, ML can not only efficiently and accurately predict MOF properties but also quantitatively derive structure-property relationships for rational design and screening. In this Perspective, we summarize recent achievements in leveraging ML for MOFs from the aspects of data acquisition, featurization, model training, and applications. Then, current challenges and new opportunities are discussed for the future exploration of ML to accelerate the development of new MOFs in this vibrant field.
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Affiliation(s)
- Hongjian Tang
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy & Environment, Southeast University, Nanjing 210096, China
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 117576 Singapore
| | - Lunbo Duan
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy & Environment, Southeast University, Nanjing 210096, China
| | - Jianwen Jiang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 117576 Singapore
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Wang R, Bukowski BC, Duan J, Zhang K, Snurr RQ, Hupp JT. Geometry and Chemistry: Influence of Pore Functionalization on Molecular Transport and Diffusion in Solvent-Filled Zirconium Metal-Organic Frameworks. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37883531 DOI: 10.1021/acsami.3c08861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Postsynthetic modification (PSM) of metal-organic frameworks (MOFs) enables incorporation of diverse functionalities in pores for chemical separations, drug delivery, and heterogeneous catalysis. However, the effect of PSM on molecular transport, which is essential for most applications of MOFs, has been rarely studied. In this paper, we used perfluoroalkane-functionalized Zr-MOF NU-1008 as a platform to systematically interrogate transport processes and mechanisms in solvated pores. We anchored perfluoroalkanes onto NU-1008 nodes by solvent-assisted ligand incorporation (SALI-n, with n = 3, 5, 7, and 9 denoting the number of fluorinated carbons). Transport of a luminescent molecule, BODIPY, through individual crystallites of four versions of methanol-filled SALI-n was monitored by confocal fluorescence microscopy as a function of time and location. In comparison with the parent NU-1008, the diffusivity of the probe molecules within SALI-n declined by 2- to 7-fold depending on chain length and loading, presumably due to the reduction in pore diameter or adsorptive interactions with perfluoroalkyl chains. Atomistic simulations were performed to uncover the microscopic behavior of the BODIPY diffusion in SALI-n. The perfluoroalkyl chains are observed to stay close to the pore walls, instead of extending toward the pore center. BODIPY molecules, which preferably interact with linkers, were pushed to the interior of the channels as the chain length increased, resulting in solvated diffusion and minor differences in the short-time mobility of BODIPY in SALI-n. This suggested that the observed decline of transport diffusivity in SALI-n mainly stemmed from the reduction in the pore size when these flexible chains are present. We anticipate that this proof of concept will assist in understanding how pore functionalization can physically and chemically affect mass transport in MOFs and will be useful in further guiding the design of PSM to realize the optimal performance of MOFs for various applications.
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Affiliation(s)
- Rui Wang
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Brandon C Bukowski
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Jiaxin Duan
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Kun Zhang
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, China
| | - Randall Q Snurr
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Joseph T Hupp
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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Rajasree SS, Yu J, Fajardo-Rojas F, Fry HC, Anderson R, Li X, Xu W, Duan J, Goswami S, Maindan K, Gómez-Gualdrón DA, Deria P. Framework-Topology-Controlled Singlet Fission in Metal-Organic Frameworks. J Am Chem Soc 2023; 145:17678-17688. [PMID: 37527433 DOI: 10.1021/jacs.3c03918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
Singlet fission (SF) has been explored as a viable route to improve photovoltaic performance by producing more excitons. Efficient SF is achieved through a high degree of interchromophoric coupling that facilitates electron superexchange to generate triplet pairs. However, strongly coupled chromophores often form excimers that can serve as an SF intermediate or a low-energy trap site. The succeeding decoherence process, however, requires an optimum electronic coupling to facilitate the isolation of triplet production from the initially prepared correlated triplet pair. Conformational flexibility and dielectric modulation can provide a means to tune the SF mechanism and efficiency by modulating the interchromophoric electronic interaction. Such a strategy cannot be easily adopted in densely stacked traditional organic solids. Here, we show that the assembly of the SF-active chromophores around well-defined pores of solution-stable metal-organic frameworks (MOFs) can be a great platform for a modular SF process. A series of three new MOFs, built out from 9,10-bis(ethynylenephenyl)anthracene-derived struts, show a topology-defined packing density and conformational flexibility of the anthracene core to dictate the SF mechanism. Various steady-state and transient spectroscopic data suggest that the initially prepared singlet population can prefer either an excimer-mediated SF or a direct SF (both through a virtual charge-transfer (CT) state). These solution-stable frameworks offer the tunability of the dielectric environment to facilitate the SF process by stabilizing the CT state. Given that MOFs are a great platform for various photophysical and photochemical developments, generating a large population of long-lived triplets can expand their utilities in various photon energy conversion schemes.
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Affiliation(s)
- Sreehari Surendran Rajasree
- School of Chemical and Biomolecular Science, Southern Illinois University, 1245 Lincoln Drive, Carbondale, Illinois 62901, United States
| | - Jierui Yu
- School of Chemical and Biomolecular Science, Southern Illinois University, 1245 Lincoln Drive, Carbondale, Illinois 62901, United States
| | - Fernando Fajardo-Rojas
- Department of Chemical and Biological Engineering, Colorado School of Mines, 1500 Illinois Street, Golden, Colorado 80401, United States
| | - H Christopher Fry
- Center for Nanoscale Materials, Argonne National Laboratory, 9700 S Cass Avenue, Lemont, Illinois 60439, United States
| | - Ryther Anderson
- Department of Chemical and Biological Engineering, Colorado School of Mines, 1500 Illinois Street, Golden, Colorado 80401, United States
| | - Xinlin Li
- School of Chemical and Biomolecular Science, Southern Illinois University, 1245 Lincoln Drive, Carbondale, Illinois 62901, United States
| | - Wenqian Xu
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, 9700 S Cass Avenue, Lemont, Illinois 60439, United States
| | - Jiaxin Duan
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Subhadip Goswami
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Karan Maindan
- School of Chemical and Biomolecular Science, Southern Illinois University, 1245 Lincoln Drive, Carbondale, Illinois 62901, United States
| | - Diego A Gómez-Gualdrón
- Department of Chemical and Biological Engineering, Colorado School of Mines, 1500 Illinois Street, Golden, Colorado 80401, United States
| | - Pravas Deria
- School of Chemical and Biomolecular Science, Southern Illinois University, 1245 Lincoln Drive, Carbondale, Illinois 62901, United States
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Demir H, Daglar H, Gulbalkan HC, Aksu GO, Keskin S. Recent advances in computational modeling of MOFs: From molecular simulations to machine learning. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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Li X, Anderson R, Fry HC, Pratik SM, Xu W, Goswami S, Allen TG, Yu J, Rajasree SS, Cramer CJ, Rumbles G, Gómez-Gualdrón DA, Deria P. Metal-Carbodithioate-Based 3D Semiconducting Metal-Organic Framework: Porous Optoelectronic Material for Energy Conversion. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37256818 DOI: 10.1021/acsami.3c04200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Solar energy conversion requires the working compositions to generate photoinduced charges with high potential and the ability to deliver charges to the catalytic sites and/or external electrode. These two properties are typically at odds with each other and call for new molecular materials with sufficient conjugation to improve charge conductivity but not as much conjugation as to overly compromise the optical band gap. In this work, we developed a semiconducting metal-organic framework (MOF) prepared explicitly through metal-carbodithioate "(-CS2)nM" linkage chemistry, entailing augmented metal-linker electronic communication. The stronger ligand field and higher covalent character of metal-carbodithioate linkages─when combined with spirofluorene-derived organic struts and nickel(II) ion-based nodes─provided a stable, semiconducting 3D-porous MOF, Spiro-CS2Ni. This MOF lacks long-range ordering and is defined by a flexible structure with non-aggregated building units, as suggested by reverse Monte Carlo simulations of the pair distribution function obtained from total scattering experiments. The solvent-removed "closed pore" material recorded a Brunauer-Emmett-Teller area of ∼400 m2/g, where the "open pore" form possesses 90 wt % solvent-accessible porosity. Electrochemical measurements suggest that Spiro-CS2Ni possesses a band gap of 1.57 eV (σ = 10-7 S/cm at -1.3 V bias potential), which can be further improved by manipulating the d-electron configuration through an axial coordination (ligand/substrate), the latter of which indicates usefulness as an electrocatalyst and/or a photoelectrocatalyst (upon substrate binding). Transient-absorption spectroscopy reveals a long-lived photo-generated charge-transfer state (τCR = 6.5 μs) capable of chemical transformation under a biased voltage. Spiro-CS2Ni can endure a compelling range of pH (1-12 for weeks) and hours of electrochemical and photoelectrochemical conditions in the presence of water and organic acids. We believe this work provides crucial design principles for low-density, porous, light-energy-conversion materials.
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Affiliation(s)
- Xinlin Li
- School of Chemical and Biomolecular Science, Southern Illinois University, 1245 Lincoln Drive, Carbondale, Illinois 62901, United States
| | - Ryther Anderson
- Department of Chemical and Biological Engineering, Colorado School of Mines, 1601 Illinois Street, Golden, Colorado 80401, United States
| | - H Christopher Fry
- Center for Nanoscale Materials, Argonne National Laboratory, 9700 S Cass Avenue, Lemont, Illinois 60439, United States
| | - Saied Md Pratik
- Department of Chemistry, Minnesota Supercomputing Institute, and Chemical Theory Center, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Wenqian Xu
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, 9700 S Cass Avenue, Lemont, Illinois 60439, United States
| | - Subhadip Goswami
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Taylor G Allen
- National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, Colorado 80401, United States
| | - Jierui Yu
- School of Chemical and Biomolecular Science, Southern Illinois University, 1245 Lincoln Drive, Carbondale, Illinois 62901, United States
| | - Sreehari Surendran Rajasree
- School of Chemical and Biomolecular Science, Southern Illinois University, 1245 Lincoln Drive, Carbondale, Illinois 62901, United States
| | - Christopher J Cramer
- Department of Chemistry, Minnesota Supercomputing Institute, and Chemical Theory Center, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Garry Rumbles
- National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, Colorado 80401, United States
- Renewable and Sustainable Energy Institute, Department of Chemistry, University of Colorado, Boulder, Colorado 80309, United States
| | - Diego A Gómez-Gualdrón
- Department of Chemical and Biological Engineering, Colorado School of Mines, 1601 Illinois Street, Golden, Colorado 80401, United States
| | - Pravas Deria
- School of Chemical and Biomolecular Science, Southern Illinois University, 1245 Lincoln Drive, Carbondale, Illinois 62901, United States
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Poryvaev AS, Larionov KP, Albrekht YN, Efremov AA, Kiryutin AS, Smirnova KA, Evtushok VY, Fedin MV. UiO-66 framework with an encapsulated spin probe: synthesis and exceptional sensitivity to mechanical pressure. Phys Chem Chem Phys 2023; 25:13846-13853. [PMID: 37161549 DOI: 10.1039/d3cp01063e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Probes sensitive to mechanical stress are in demand for the analysis of pressure distribution in materials, and the design of pressure sensors based on metal-organic frameworks (MOFs) is highly promising due to their structural tunability. We report a new pressure-sensing material, which is based on the UiO-66 framework with trace amounts of a spin probe (0.03 wt%) encapsulated in cavities. To obtain this material, we developed an approach for encapsulation of stable nitroxide radical TEMPO ((2,2,6,6-tetramethylpiperidin-1-yl)oxyl) into the micropores of UiO-66 during its solvothermal synthesis. Pressure read-out using electron paramagnetic resonance (EPR) spectroscopy allows monitoring the degradation of the defected MOF structure upon pressurization, where full collapse of pores occurs at as low a pressure as 0.13 GPa. The developed methodology can be used in and ex situ and provides sensitive tools for non-destructive mapping of pressure effects in various materials.
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Affiliation(s)
- Artem S Poryvaev
- International Tomography Center SB RAS, Institutskaya str. 3a, Novosibirsk, 630090, Russia.
| | - Kirill P Larionov
- Boreskov Institute of Catalysis SB RAS, Lavrentiev av. 5, Novosibirsk, 630090, Russia
| | - Yana N Albrekht
- International Tomography Center SB RAS, Institutskaya str. 3a, Novosibirsk, 630090, Russia.
| | - Alexander A Efremov
- International Tomography Center SB RAS, Institutskaya str. 3a, Novosibirsk, 630090, Russia.
- Novosibirsk State University, Pirogova str. 1, Novosibirsk, 630090, Russia
| | - Alexey S Kiryutin
- International Tomography Center SB RAS, Institutskaya str. 3a, Novosibirsk, 630090, Russia.
| | - Kristina A Smirnova
- International Tomography Center SB RAS, Institutskaya str. 3a, Novosibirsk, 630090, Russia.
- Novosibirsk State University, Pirogova str. 1, Novosibirsk, 630090, Russia
| | - Vasiliy Y Evtushok
- Boreskov Institute of Catalysis SB RAS, Lavrentiev av. 5, Novosibirsk, 630090, Russia
| | - Matvey V Fedin
- International Tomography Center SB RAS, Institutskaya str. 3a, Novosibirsk, 630090, Russia.
- Novosibirsk State University, Pirogova str. 1, Novosibirsk, 630090, Russia
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Bukowski BC, Snurr RQ. Insights and Heuristics for Predicting Diffusion Rates of Chemical Warfare Agents in Zirconium Metal-Organic Frameworks. ACS APPLIED MATERIALS & INTERFACES 2022; 14:55608-55615. [PMID: 36475611 DOI: 10.1021/acsami.2c17313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Designing nanoporous catalysts to destroy chemical warfare agents (CWAs) and environmental contaminants requires consideration of both intrinsic catalytic activity and the mass transfer of molecules in and out of the pores. Polar adsorbates such as CWAs experience a heterogeneous environment in many metal-organic frameworks (MOFs) due to the arrangement of the metal nodes and organic linkers of the MOF. However, quantitative relationships between the pore architecture and the resulting diffusion properties of polar molecules have not been established. We used molecular dynamics simulations to calculate the diffusion coefficients of the CWA simulant dimethyl methyl phosphonate (DMMP) in a diverse set of 776 MOFs with Zr6 nodes. We developed a 4-parameter machine learning model to predict DMMP diffusivities in Zr6 MOFs and found the model to be transferable to the CWA sarin. We then developed a simplified heuristic based on the machine learning model that the node-node distance and accessible surface area should be maximized to find MOFs with rapid CWA diffusion.
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Affiliation(s)
- Brandon C Bukowski
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Randall Q Snurr
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
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11
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Gibaldi M, Kwon O, White A, Burner J, Woo TK. The HEALED SBU Library of Chemically Realistic Building Blocks for Construction of Hypothetical Metal-Organic Frameworks. ACS APPLIED MATERIALS & INTERFACES 2022; 14:43372-43386. [PMID: 36121788 DOI: 10.1021/acsami.2c13100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Advancements in hypothetical metal-organic framework (hMOF) databases and construction tools have resulted in a rapidly expanding chemical design space for nanoporous materials. The bulk of these hypothetical structures are constructed using structural building units (SBUs) derived from experimental MOF structures, often collected from the CoRE-MOF database. Recent investigations into the state of these deposited experimental structures' chemical accuracy identified an array of common structural errors, including omitted protons, missing counterions, and disordered structures. These structural errors propagate into the SBUs mined from experimental MOFs, culminating in inaccurate hMOF structures possessing net charges or missing atoms which were not accounted for previously. This work demonstrates how manual investigation was applied to diagnose structural errors in SBUs obtained from several popular hMOF construction tools and databases. An analysis of the prevailing errors discovered during the examination process is provided along with representative cases to aid with error detection in future studies involving SBU extraction and hMOF construction. A novel repair protocol was established and employed to generate a library of SBUs that are hand-examined and labeled with enhanced detail (HEALED). This repaired library of SBUs contains 952 inorganic SBUs and 568 organic SBUs ideally suited for the generation of hypothetical frameworks that are chemically accurate and properly charge labeled. Additionally, case studies following the effects of SBU errors on electrostatic potential-fitted charges and GCMC-simulated gas adsorption predictions are presented to highlight the significance of using chemically accurate hMOF structures exclusively in all screening efforts going forward.
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Affiliation(s)
- Marco Gibaldi
- Department of Chemistry and Biomolecular Science, University of Ottawa, 10 Marie Curie Private, Ottawa K1N 6N5, Canada
| | - Ohmin Kwon
- Department of Chemistry and Biomolecular Science, University of Ottawa, 10 Marie Curie Private, Ottawa K1N 6N5, Canada
| | - Andrew White
- Department of Chemistry and Biomolecular Science, University of Ottawa, 10 Marie Curie Private, Ottawa K1N 6N5, Canada
| | - Jake Burner
- Department of Chemistry and Biomolecular Science, University of Ottawa, 10 Marie Curie Private, Ottawa K1N 6N5, Canada
| | - Tom K Woo
- Department of Chemistry and Biomolecular Science, University of Ottawa, 10 Marie Curie Private, Ottawa K1N 6N5, Canada
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Kollias L, Rousseau R, Glezakou VA, Salvalaglio M. Understanding Metal-Organic Framework Nucleation from a Solution with Evolving Graphs. J Am Chem Soc 2022; 144:11099-11109. [PMID: 35709413 DOI: 10.1021/jacs.1c13508] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A mechanistic understanding of metal-organic framework (MOF) synthesis and scale-up remains underexplored due to the complex nature of the interactions of their building blocks. In this work, we investigate the collective assembly of building units at the early stages of MOF nucleation, using MIL-101(Cr) as a prototypical example. Using large-scale molecular dynamics simulations, we observe that the choice of solvent (water and N,N-dimethylformamide), the introduction of ions (Na+ and F-) and the relative populations of MIL-101(Cr) half-secondary building unit (half-SBU) isomers have a strong influence on the cluster formation process. Additionally, the shape, size, nucleation and growth rates, crystallinity, and short and long-range order largely vary depending on the synthesis conditions. We evaluate these properties as they naturally emerge when interpreting the self-assembly of MOF nuclei as the time evolution of an undirected graph. Solution-induced conformational complexity and ionic concentration have a dramatic effect on the morphology of clusters emerging during assembly. While pure solvents lead to the rapid formation of a small number of large clusters, the presence of ions in aqueous solutions results in smaller clusters and slower nucleation. This diversity is captured by the key features of the graph representation. Principle component analysis on graph properties reveals that only a small number of molecular descriptors is needed to deconvolute MOF self-assembly. Descriptors such as the average coordination number between half-SBUs and fractal dimension are of particulalr interest as they can be can be followed experimentally by techniques like by time-resolved spectroscopy. Ultimately, graph theory emerges as an approach that can be used to understand complex processes revealing molecular descriptors accessible by both simulation and experiment.
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Affiliation(s)
- Loukas Kollias
- Basic and Applied Molecular Foundations, Pacific Northwest National Laboratory, Richland, Washington 99352 United States
| | - Roger Rousseau
- Basic and Applied Molecular Foundations, Pacific Northwest National Laboratory, Richland, Washington 99352 United States
| | - Vassiliki-Alexandra Glezakou
- Basic and Applied Molecular Foundations, Pacific Northwest National Laboratory, Richland, Washington 99352 United States
| | - Matteo Salvalaglio
- Thomas Young Centre and Department of Chemical Engineering, University College London, London WC1E 7JE, United Kingdom
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13
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Mohamed SA, Kim Y, Lee J, Choe W, Kim J. Understanding the Structural Collapse during Activation of Metal-Organic Frameworks with Copper Paddlewheels. Inorg Chem 2022; 61:9702-9709. [PMID: 35700268 DOI: 10.1021/acs.inorgchem.2c01171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Many metal-organic frameworks (MOFs) suffer from stability issues as they can be easily amorphized from various external stimuli. In particular, it is common to observe structural collapse during the activation process of removing the synthesis solvent. In this study, we conduct high-throughput computational analysis that focuses on the activation status of MOFs that possess copper paddlewheel metal nodes. From the analysis, various mechanical properties (e.g., bulk, Young's, and shear moduli) were found to be good predictors for collapse. Furthermore, we have identified anomaly MOFs with good mechanical stability that were previously reported to collapse. Accordingly, the activation process was reattempted with improved techniques, and one of these MOFs was successfully activated.
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Affiliation(s)
- Saad Aldin Mohamed
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Yeongjin Kim
- Department of Chemistry, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea
| | - Junkee Lee
- Department of Chemistry, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea
| | - Wonyoung Choe
- Department of Chemistry, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea
| | - Jihan Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
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14
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Zhang X, Zhou T, Sundmacher K. Integrated metal‐organic framework (
MOF
) and pressure/vacuum swing adsorption process design:
MOF
matching. AIChE J 2022. [DOI: 10.1002/aic.17788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiang Zhang
- Department for Process Systems Engineering Max Planck Institute for Dynamics of Complex Technical Systems Magdeburg Germany
| | - Teng Zhou
- Department for Process Systems Engineering Max Planck Institute for Dynamics of Complex Technical Systems Magdeburg Germany
- Chair of Process Systems Engineering Otto‐von‐Guericke University Magdeburg Magdeburg Germany
| | - Kai Sundmacher
- Department for Process Systems Engineering Max Planck Institute for Dynamics of Complex Technical Systems Magdeburg Germany
- Chair of Process Systems Engineering Otto‐von‐Guericke University Magdeburg Magdeburg Germany
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15
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Lu C, Wan X, Ma X, Guan X, Zhu A. Deep-Learning-Based End-to-End Predictions of CO 2 Capture in Metal–Organic Frameworks. J Chem Inf Model 2022; 62:3281-3290. [DOI: 10.1021/acs.jcim.2c00092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cunxing Lu
- School of Computer Science and Technology, Nanjing Tech University, Nanjing 211816, China
| | - Xili Wan
- School of Computer Science and Technology, Nanjing Tech University, Nanjing 211816, China
| | - Xuhao Ma
- School of Computer Science and Technology, Nanjing Tech University, Nanjing 211816, China
| | - Xinjie Guan
- School of Computer Science and Technology, Nanjing Tech University, Nanjing 211816, China
| | - Aichun Zhu
- School of Computer Science and Technology, Nanjing Tech University, Nanjing 211816, China
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16
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Nandy A, Terrones G, Arunachalam N, Duan C, Kastner DW, Kulik HJ. MOFSimplify, machine learning models with extracted stability data of three thousand metal-organic frameworks. Sci Data 2022; 9:74. [PMID: 35277533 PMCID: PMC8917177 DOI: 10.1038/s41597-022-01181-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 01/17/2022] [Indexed: 11/09/2022] Open
Abstract
We report a workflow and the output of a natural language processing (NLP)-based procedure to mine the extant metal–organic framework (MOF) literature describing structurally characterized MOFs and their solvent removal and thermal stabilities. We obtain over 2,000 solvent removal stability measures from text mining and 3,000 thermal decomposition temperatures from thermogravimetric analysis data. We assess the validity of our NLP methods and the accuracy of our extracted data by comparing to a hand-labeled subset. Machine learning (ML, i.e. artificial neural network) models trained on this data using graph- and pore-geometry-based representations enable prediction of stability on new MOFs with quantified uncertainty. Our web interface, MOFSimplify, provides users access to our curated data and enables them to harness that data for predictions on new MOFs. MOFSimplify also encourages community feedback on existing data and on ML model predictions for community-based active learning for improved MOF stability models. Measurement(s) | thermal decomposition | Technology Type(s) | thermogravimetry |
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Affiliation(s)
- Aditya Nandy
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.,Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Gianmarco Terrones
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Naveen Arunachalam
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Chenru Duan
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.,Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - David W Kastner
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.,Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Heather J Kulik
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
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17
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von Wedelstedt A, Goebel G, Kalies G. MOF-VR: A Virtual Reality Program for Performing and Visualizing Immersive Molecular Dynamics Simulations of Guest Molecules in Metal-Organic Frameworks. J Chem Inf Model 2022; 62:1154-1159. [PMID: 35188761 DOI: 10.1021/acs.jcim.2c00158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Molecular dynamics simulations are useful to study diffusion of guest molecules in metal-organic frameworks. The interpretation of the generated three-dimensional trajectories is often difficult, because most visualization tools only allow two-dimensional projections. To facilitate interpretation, we present MOF-VR: a virtual reality program for performing interactive molecular dynamics simulations in metal-organic frameworks and visualizing atomic or molecular trajectories. MOF-VR consists of three subroutines: a construction routine to create hypothetical metal-organic frameworks by hand, a molecular dynamics suite, and a trajectory visualizer. To the best of our knowledge, MOF-VR is the first virtual reality program that allows hypothetical metal-organic frameworks to be constructed and tested in molecular dynamics simulations of guest molecules. We further show that MOF-VR is capable of performing state-of-the-art molecular dynamics simulations of guest molecules in rigid metal-organic frameworks in virtual reality and provides reliable simulation results.
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Affiliation(s)
- Alexander von Wedelstedt
- Department of Chemical Engineering, HTW University of Applied Sciences Dresden, 01069 Dresden, Germany
| | - Gunther Goebel
- Department of Mechanical Engineering, HTW University of Applied Sciences Dresden, 01069 Dresden, Germany
| | - Grit Kalies
- Department of Chemical Engineering, HTW University of Applied Sciences Dresden, 01069 Dresden, Germany
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18
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Taw E, Neaton JB. Accelerated Discovery of CH
4
Uptake Capacity Metal–Organic Frameworks Using Bayesian Optimization. ADVANCED THEORY AND SIMULATIONS 2022. [DOI: 10.1002/adts.202100515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Eric Taw
- Department of Chemical and Biomolecular Engineering University of California, Berkeley Berkeley CA 94720 USA
- Materials Science Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Jeffrey B. Neaton
- Materials Science Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
- Department of Physics University of California, Berkeley Berkeley CA 94720 USA
- Kavli Energy NanoScience Institute at Berkeley Berkeley CA 94720 USA
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19
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Hanna SL, Chheda S, Anderson R, Ray D, Malliakas CD, Knapp JG, Otake KI, Li P, Li P, Wang X, Wasson MC, Zosel K, Evans AM, Robison L, Islamoglu T, Zhang X, Dichtel WR, Stoddart JF, Gomez-Gualdron DA, Gagliardi L, Farha OK. Discovery of spontaneous de-interpenetration through charged point-point repulsions. Chem 2022. [DOI: 10.1016/j.chempr.2021.10.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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20
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Halder P, Prerna, Singh JK. Building Unit Extractor for Metal-Organic Frameworks. J Chem Inf Model 2021; 61:5827-5840. [PMID: 34793154 DOI: 10.1021/acs.jcim.1c00547] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Metal-organic frameworks (MOFs) have relevance in extensive applications such as gas adsorption, separation, and energy storage. The tunability demonstrated by MOFs has encouraged research on MOF database generation via distinct methodologies. One of the crucial stages of these procedures is pre-processing, which often includes extraction of the building units (BUs). The process of BU extraction is intricate, and it is further amplified with the presence of solvent molecules/ions in the structure. This work presents MOF BU developer (mBUD), a platform to deconstruct the BUs, such as metal nodes, organic linkers, and functional groups of the MOF structure. The deconstruction algorithm has been assessed on the MOF structures of the CoRE MOF 2019 database. A total of 2,580 BUs have been extracted and provided as a database. This platform has been utilized to create a ready-to-use database of unique BUs deconstructed from the CoRE MOF database. We have also provided the web version of mBUD that can be easily used to extract BUs. These BUs can be employed to develop hypothetical MOF structures. It is envisaged that the BU database built with the deconstruction platform will aid the design of novel application-specific MOFs.
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Affiliation(s)
- Prosun Halder
- Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Prerna
- Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Jayant K Singh
- Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India.,Prescience Insilico Private Limited, Old Madras Road, Bangalore 560049, India
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21
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Sharp CH, Bukowski BC, Li H, Johnson EM, Ilic S, Morris AJ, Gersappe D, Snurr RQ, Morris JR. Nanoconfinement and mass transport in metal-organic frameworks. Chem Soc Rev 2021; 50:11530-11558. [PMID: 34661217 DOI: 10.1039/d1cs00558h] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The ubiquity of metal-organic frameworks in recent scientific literature underscores their highly versatile nature. MOFs have been developed for use in a wide array of applications, including: sensors, catalysis, separations, drug delivery, and electrochemical processes. Often overlooked in the discussion of MOF-based materials is the mass transport of guest molecules within the pores and channels. Given the wide distribution of pore sizes, linker functionalization, and crystal sizes, molecular diffusion within MOFs can be highly dependent on the MOF-guest system. In this review, we discuss the major factors that govern the mass transport of molecules through MOFs at both the intracrystalline and intercrystalline scale; provide an overview of the experimental and computational methods used to measure guest diffusivity within MOFs; and highlight the relevance of mass transfer in the applications of MOFs in electrochemical systems, separations, and heterogeneous catalysis.
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Affiliation(s)
- Conor H Sharp
- National Research Council Associateship Program and Electronic Science and Technology Division, U.S. Naval Research Laboratory, Washington, DC 20375, USA
| | - Brandon C Bukowski
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, USA
| | - Hongyu Li
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, USA
| | - Eric M Johnson
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, USA.
| | - Stefan Ilic
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, USA.
| | - Amanda J Morris
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, USA.
| | - Dilip Gersappe
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, USA
| | - Randall Q Snurr
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, USA
| | - John R Morris
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, USA.
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22
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Ahmed A, Siegel DJ. Predicting hydrogen storage in MOFs via machine learning. PATTERNS (NEW YORK, N.Y.) 2021; 2:100291. [PMID: 34286305 PMCID: PMC8276024 DOI: 10.1016/j.patter.2021.100291] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/10/2021] [Accepted: 05/26/2021] [Indexed: 11/14/2022]
Abstract
The H2 capacities of a diverse set of 918,734 metal-organic frameworks (MOFs) sourced from 19 databases is predicted via machine learning (ML). Using only 7 structural features as input, ML identifies 8,282 MOFs with the potential to exceed the capacities of state-of-the-art materials. The identified MOFs are predominantly hypothetical compounds having low densities (<0.31 g cm-3) in combination with high surface areas (>5,300 m2 g-1), void fractions (∼0.90), and pore volumes (>3.3 cm3 g-1). The relative importance of the input features are characterized, and dependencies on the ML algorithm and training set size are quantified. The most important features for predicting H2 uptake are pore volume (for gravimetric capacity) and void fraction (for volumetric capacity). The ML models are available on the web, allowing for rapid and accurate predictions of the hydrogen capacities of MOFs from limited structural data; the simplest models require only a single crystallographic feature.
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Affiliation(s)
- Alauddin Ahmed
- Mechanical Engineering Department, University of Michigan, Ann Arbor, MI 48109, USA
| | - Donald J. Siegel
- Mechanical Engineering Department, University of Michigan, Ann Arbor, MI 48109, USA
- Materials Science & Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Applied Physics Program, University of Michigan, Ann Arbor, MI 48109, USA
- University of Michigan Energy Institute, University of Michigan, Ann Arbor, MI 48109, USA
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23
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Anderson R, Gómez-Gualdrón DA. Deep learning combined with IAST to screen thermodynamically feasible MOFs for adsorption-based separation of multiple binary mixtures. J Chem Phys 2021; 154:234102. [PMID: 34241255 DOI: 10.1063/5.0048736] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
The structures of metal-organic frameworks (MOFs) can be tuned to reproducibly create adsorption properties that enable the use of these materials in fixed-adsorption beds for non-thermal separations. However, with millions of possible MOF structures, the challenge is to find the MOF with the best adsorption properties to separate a given mixture. Thus, computational, rather than experimental, screening is necessary to identify promising MOF structures that merit further examination, a process traditionally done using molecular simulation. However, even molecular simulation can become intractable when screening an expansive MOF database for their separation properties at more than a few composition, temperature, and pressure combinations. Here, we illustrate progress toward an alternative computational framework that can efficiently identify the highest-performing MOFs for separating various gas mixtures at a variety of conditions and at a fraction of the computational cost of molecular simulation. This framework uses a "multipurpose" multilayer perceptron (MLP) model that can predict single component adsorption of various small adsorbates, which, upon coupling with ideal adsorbed solution theory (IAST), can predict binary adsorption for mixtures such as Xe/Kr, CH4/CH6, N2/CH4, and Ar/Kr at multiple compositions and pressures. For this MLP+IAST framework to work with sufficient accuracy, we found it critical for the MLP to make accurate predictions at low pressures (0.01-0.1 bar). After training a model with this capability, we found that MOFs in the 95th and 90th percentiles of separation performance determined from MLP+IAST calculations were 65% and 87%, respectively, the same as MOFs in the simulation-predicted 95th percentile across several mixtures at diverse conditions (on average). After validating our MLP+IAST framework, we used a clustering algorithm to identify "privileged" MOFs that are high performing for multiple separations at multiple conditions. As an example, we focused on MOFs that were high performing for the industrially relevant separations 80/20 Xe/Kr at 1 bar and 80/20 N2/CH4 at 5 bars. Finally, we used the MOF free energies (calculated on our entire database) to identify privileged MOFs that were also likely synthetically accessible, at least from a thermodynamic perspective.
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Affiliation(s)
- Ryther Anderson
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, Colorado 80401, USA
| | - Diego A Gómez-Gualdrón
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, Colorado 80401, USA
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24
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Lee S, Kim B, Cho H, Lee H, Lee SY, Cho ES, Kim J. Computational Screening of Trillions of Metal-Organic Frameworks for High-Performance Methane Storage. ACS APPLIED MATERIALS & INTERFACES 2021; 13:23647-23654. [PMID: 33988362 DOI: 10.1021/acsami.1c02471] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In the past decade, there has been an increasing number of computational screening works to facilitate finding optimal materials for a variety of different applications. Unfortunately, most of these screening studies are limited to their initial set of materials and result in a brute-force type of screening approach. In this work, we present a systematic strategy that can find metal-organic frameworks (MOFs) with the desired properties from an extremely diverse and large set of over 100 trillion possible MOFs using machine learning and evolutionary algorithm. It is demonstrated that our algorithm can discover 964 MOFs with methane working capacity over 200 cm3 cm-3 and 96 MOFs with methane working capacity over the current world record of 208 cm3 cm-3. We believe that this methodology can take advantage of the modular nature of MOFs and can readily be extended to other important applications as well.
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Affiliation(s)
- Sangwon Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Baekjun Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Hyun Cho
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Hooseung Lee
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
| | - Sarah Yunmi Lee
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
| | - Eun Seon Cho
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Jihan Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
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25
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Altintas C, Altundal OF, Keskin S, Yildirim R. Machine Learning Meets with Metal Organic Frameworks for Gas Storage and Separation. J Chem Inf Model 2021; 61:2131-2146. [PMID: 33914526 PMCID: PMC8154255 DOI: 10.1021/acs.jcim.1c00191] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Indexed: 02/06/2023]
Abstract
The acceleration in design of new metal organic frameworks (MOFs) has led scientists to focus on high-throughput computational screening (HTCS) methods to quickly assess the promises of these fascinating materials in various applications. HTCS studies provide a massive amount of structural property and performance data for MOFs, which need to be further analyzed. Recent implementation of machine learning (ML), which is another growing field in research, to HTCS of MOFs has been very fruitful not only for revealing the hidden structure-performance relationships of materials but also for understanding their performance trends in different applications, specifically for gas storage and separation. In this review, we highlight the current state of the art in ML-assisted computational screening of MOFs for gas storage and separation and address both the opportunities and challenges that are emerging in this new field by emphasizing how merging of ML and MOF simulations can be useful.
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Affiliation(s)
- Cigdem Altintas
- Department
of Chemical and Biological Engineering, Koc University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
| | - Omer Faruk Altundal
- Department
of Chemical and Biological Engineering, Koc University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
| | - Seda Keskin
- Department
of Chemical and Biological Engineering, Koc University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
| | - Ramazan Yildirim
- Department
of Chemical Engineering, Boğaziçi
University, Bebek, 34342 Istanbul, Turkey
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26
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Mukherjee K, Colón YJ. Machine learning and descriptor selection for the computational discovery of metal-organic frameworks. MOLECULAR SIMULATION 2021. [DOI: 10.1080/08927022.2021.1916014] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Krishnendu Mukherjee
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, USA
| | - Yamil J. Colón
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, USA
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27
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Kancharlapalli S, Gopalan A, Haranczyk M, Snurr RQ. Fast and Accurate Machine Learning Strategy for Calculating Partial Atomic Charges in Metal-Organic Frameworks. J Chem Theory Comput 2021; 17:3052-3064. [PMID: 33739834 DOI: 10.1021/acs.jctc.0c01229] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Computational high-throughput screening using molecular simulations is a powerful tool for identifying top-performing metal-organic frameworks (MOFs) for gas storage and separation applications. Accurate partial atomic charges are often required to model the electrostatic interactions between the MOF and the adsorbate, especially when the adsorption involves molecules with dipole or quadrupole moments such as water and CO2. Although ab initio methods can be used to calculate accurate partial atomic charges, these methods are impractical for screening large material databases because of the high computational cost. We developed a random forest machine learning model to predict the partial atomic charges in MOFs using a small yet meaningful set of features that represent both the elemental properties and the local environment of each atom. The model was trained and tested on a collection of about 320 000 density-derived electrostatic and chemical (DDEC) atomic charges calculated on a subset of the Computation-Ready Experimental Metal-Organic Framework (CoRE MOF-2019) database and separately on charge model 5 (CM5) charges. The model predicts accurate atomic charges for MOFs at a fraction of the computational cost of periodic density functional theory (DFT) and is found to be transferable to other porous molecular crystals and zeolites. A strong correlation is observed between the partial atomic charge and the average electronegativity difference between the central atom and its bonded neighbors.
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Affiliation(s)
- Srinivasu Kancharlapalli
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States.,Theoretical Chemistry Section, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India
| | - Arun Gopalan
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Maciej Haranczyk
- IMDEA Materials Institute, C/Eric Kandel 2, 28906 Getafe, Madrid, Spain
| | - Randall Q Snurr
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
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28
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Yao Z, Sánchez-Lengeling B, Bobbitt NS, Bucior BJ, Kumar SGH, Collins SP, Burns T, Woo TK, Farha OK, Snurr RQ, Aspuru-Guzik A. Inverse design of nanoporous crystalline reticular materials with deep generative models. NAT MACH INTELL 2021. [DOI: 10.1038/s42256-020-00271-1] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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29
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Bukowski BC, Snurr RQ. Topology-Dependent Alkane Diffusion in Zirconium Metal-Organic Frameworks. ACS APPLIED MATERIALS & INTERFACES 2020; 12:56049-56059. [PMID: 33269907 DOI: 10.1021/acsami.0c17797] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Metal-organic frameworks (MOFs) can be designed for chemical applications by modulating the size and shape of intracrystalline pores through selection of their nodes and linkers. Zirconium nodes with variable connectivity to organic linkers allow for a broad range of topological nets that have diverse pore structures even for a consistent set of linkers. Identifying an optimal pore structure for a given application, however, is complicated by the large material space of possible MOFs. In this work, molecular dynamics simulations were used to determine how a MOF's topology affects the diffusion of propane and isobutane over the full range of loadings and to understand how MOFs can be tuned to reduce transport limitations for applications in separations and catalysis. High-throughput simulation techniques were employed to efficiently calculate loading-dependent diffusivities in 38 MOFs. The results show that topologies with higher node connectivity have reduced alkane diffusivities compared to topologies with lower node connectivity. Molecular siting techniques were used to elucidate how the pore structures in different topologies affect adsorbate diffusivities.
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Affiliation(s)
- Brandon C Bukowski
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Randall Q Snurr
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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30
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Clayson IG, Hewitt D, Hutereau M, Pope T, Slater B. High Throughput Methods in the Synthesis, Characterization, and Optimization of Porous Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2002780. [PMID: 32954550 DOI: 10.1002/adma.202002780] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 06/02/2020] [Accepted: 06/08/2020] [Indexed: 05/14/2023]
Abstract
Porous materials are widely employed in a large range of applications, in particular, for storage, separation, and catalysis of fine chemicals. Synthesis, characterization, and pre- and post-synthetic computer simulations are mostly carried out in a piecemeal and ad hoc manner. Whilst high throughput approaches have been used for more than 30 years in the porous material fields, routine integration of experimental and computational processes is only now becoming more established. Herein, important developments are highlighted and emerging challenges for the community identified, including the need to work toward more integrated workflows.
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Affiliation(s)
- Ivan G Clayson
- Department of Chemistry, University College London, 20 Gower Street, London, WC1E 6BT, UK
| | - Daniel Hewitt
- Department of Chemistry, University College London, 20 Gower Street, London, WC1E 6BT, UK
| | - Martin Hutereau
- Department of Chemistry, University College London, 20 Gower Street, London, WC1E 6BT, UK
| | - Tom Pope
- Department of Chemistry, University College London, 20 Gower Street, London, WC1E 6BT, UK
| | - Ben Slater
- Department of Chemistry, University College London, 20 Gower Street, London, WC1E 6BT, UK
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31
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Daglar H, Keskin S. Recent advances, opportunities, and challenges in high-throughput computational screening of MOFs for gas separations. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213470] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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32
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Moosavi SM, Nandy A, Jablonka KM, Ongari D, Janet JP, Boyd PG, Lee Y, Smit B, Kulik HJ. Understanding the diversity of the metal-organic framework ecosystem. Nat Commun 2020; 11:4068. [PMID: 32792486 PMCID: PMC7426948 DOI: 10.1038/s41467-020-17755-8] [Citation(s) in RCA: 162] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 07/10/2020] [Indexed: 02/07/2023] Open
Abstract
Millions of distinct metal-organic frameworks (MOFs) can be made by combining metal nodes and organic linkers. At present, over 90,000 MOFs have been synthesized and over 500,000 predicted. This raises the question whether a new experimental or predicted structure adds new information. For MOF chemists, the chemical design space is a combination of pore geometry, metal nodes, organic linkers, and functional groups, but at present we do not have a formalism to quantify optimal coverage of chemical design space. In this work, we develop a machine learning method to quantify similarities of MOFs to analyse their chemical diversity. This diversity analysis identifies biases in the databases, and we show that such bias can lead to incorrect conclusions. The developed formalism in this study provides a simple and practical guideline to see whether new structures will have the potential for new insights, or constitute a relatively small variation of existing structures.
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Affiliation(s)
- Seyed Mohamad Moosavi
- Laboratory of Molecular Simulation, Institut des Sciences et Ingénierie Chimiques, École, Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, Sion, CH-1951, Valais, Switzerland
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Aditya Nandy
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Kevin Maik Jablonka
- Laboratory of Molecular Simulation, Institut des Sciences et Ingénierie Chimiques, École, Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, Sion, CH-1951, Valais, Switzerland
| | - Daniele Ongari
- Laboratory of Molecular Simulation, Institut des Sciences et Ingénierie Chimiques, École, Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, Sion, CH-1951, Valais, Switzerland
| | - Jon Paul Janet
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Peter G Boyd
- Laboratory of Molecular Simulation, Institut des Sciences et Ingénierie Chimiques, École, Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, Sion, CH-1951, Valais, Switzerland
| | - Yongjin Lee
- School of Physical Science and Technology, ShanghaiTech University, 201210, Shanghai, China
| | - Berend Smit
- Laboratory of Molecular Simulation, Institut des Sciences et Ingénierie Chimiques, École, Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, Sion, CH-1951, Valais, Switzerland.
| | - Heather J Kulik
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
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Yu J, Anderson R, Li X, Xu W, Goswami S, Rajasree SS, Maindan K, Gómez-Gualdrón DA, Deria P. Improving Energy Transfer within Metal–Organic Frameworks by Aligning Linker Transition Dipoles along the Framework Axis. J Am Chem Soc 2020; 142:11192-11202. [DOI: 10.1021/jacs.0c03949] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Jierui Yu
- Department of Chemistry and Biochemistry, Southern Illinois University, 1245 Lincoln Drive, Carbondale, Illinois 62901, United States
| | - Ryther Anderson
- Department of Chemical and Biological Engineering, Colorado School of Mines, 1500 Illinois Street, Golden, Colorado 80401, United States
| | - Xinlin Li
- Department of Chemistry and Biochemistry, Southern Illinois University, 1245 Lincoln Drive, Carbondale, Illinois 62901, United States
| | - Wenqian Xu
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, 9700 S. Cass Avenue, Lemont, Illinois 60439, United States
| | - Subhadip Goswami
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Sreehari Surendran Rajasree
- Department of Chemistry and Biochemistry, Southern Illinois University, 1245 Lincoln Drive, Carbondale, Illinois 62901, United States
| | - Karan Maindan
- Department of Chemistry and Biochemistry, Southern Illinois University, 1245 Lincoln Drive, Carbondale, Illinois 62901, United States
| | - Diego A. Gómez-Gualdrón
- Department of Chemical and Biological Engineering, Colorado School of Mines, 1500 Illinois Street, Golden, Colorado 80401, United States
| | - Pravas Deria
- Department of Chemistry and Biochemistry, Southern Illinois University, 1245 Lincoln Drive, Carbondale, Illinois 62901, United States
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Chen Z, Li P, Anderson R, Wang X, Zhang X, Robison L, Redfern LR, Moribe S, Islamoglu T, Gómez-Gualdrón DA, Yildirim T, Stoddart JF, Farha OK. Balancing volumetric and gravimetric uptake in highly porous materials for clean energy. Science 2020; 368:297-303. [DOI: 10.1126/science.aaz8881] [Citation(s) in RCA: 252] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 03/17/2020] [Indexed: 01/07/2023]
Affiliation(s)
- Zhijie Chen
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
| | - Penghao Li
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
| | - Ryther Anderson
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, CO 80401, USA
| | - Xingjie Wang
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
| | - Xuan Zhang
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
| | - Lee Robison
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
| | - Louis R. Redfern
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
| | - Shinya Moribe
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
- Future Mobility Research Department, Toyota Research Institute of North America, Ann Arbor, Michigan 48105, USA
| | - Timur Islamoglu
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
| | - Diego A. Gómez-Gualdrón
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, CO 80401, USA
| | - Taner Yildirim
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - J. Fraser Stoddart
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
- Institute for Molecular Design and Synthesis, Tianjin University, 92 Weijin Road, Tianjin 300072, China
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Omar K. Farha
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
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35
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Younis SA, Lim DK, Kim KH, Deep A. Metalloporphyrinic metal-organic frameworks: Controlled synthesis for catalytic applications in environmental and biological media. Adv Colloid Interface Sci 2020; 277:102108. [PMID: 32028075 DOI: 10.1016/j.cis.2020.102108] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 01/09/2020] [Accepted: 01/20/2020] [Indexed: 01/10/2023]
Abstract
Recently, as a new sub-family of porous coordination polymers (PCPs), porphyrinic-MOFs (Porph-MOFs) with biomimetic features have been developed using porphyrin macrocycles as ligands and/or pillared linkers. The control over the coordination of the porphyrin ligand and its derivatives however remains a challenge for engineering new tunable Porph-MOF frameworks by self-assembly methods. The key challenges exist in the following respects: (i) collapse of the large open pores of Porph-MOFs during synthesis, (ii) deactivation of unsaturated metal-sites (UMCs) by axial coordination, and (iii) the tendency of both coordinated moieties (at peripheral meso- and beta-carbon sites) and the N4-pyridine core to coordinate with metal cations. In this respect, this review covers the advances in the design of Porph-MOFs relative to their counterpart covalent organic frameworks (Porph-COFs). The potential utility of custom-designed porphyrin/metalloporphyrins ligands is highlighted. Synthesis strategies of Porph-MOFs are also illustrated with modular design of hybrid guest@host composites (either Porph@MOFs or guest@Porph-MOFs) with exceptional topologies and stability. This review summarizes the synergistic benefits of coordinated porphyrin ligands and functional guest molecules in Porph-MOF composites for enhanced catalytic performance in various redox applications. This review shed lights on the engineering of new tunable hetero-metals open active sites within (metallo)porphyrin-MOFs as out-of-the-box platforms for enhanced catalytic processes in chemical and biological media.
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Affiliation(s)
- Sherif A Younis
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea; Analysis and Evaluation Department, Egyptian Petroleum Research Institute (EPRI), Nasr City, 11727 Cairo, Egypt; Liquid Chromatography and Water Unit, EPRI-Central Laboratories, Nasr City, 11727 Cairo, Egypt
| | - Dong-Kwon Lim
- KU-KIST Graduate School of Converging Science and Technology, Korea University,145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea.
| | - Akash Deep
- Central Scientific Instruments Organization (CSIR-CSIO), Sector 30 C, Chandigarh 160030, India.
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Anderson R, Biong A, Gómez-Gualdrón DA. Adsorption Isotherm Predictions for Multiple Molecules in MOFs Using the Same Deep Learning Model. J Chem Theory Comput 2020; 16:1271-1283. [PMID: 31922755 DOI: 10.1021/acs.jctc.9b00940] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Tailoring the structure and chemistry of metal-organic frameworks (MOFs) enables the manipulation of their adsorption properties to suit specific energy and environmental applications. As there are millions of possible MOFs (with tens of thousands already synthesized), molecular simulation has frequently been used to rapidly evaluate the adsorption performance of a large set of MOFs. This allows subsequent experiments to focus only on a small subset of the most promising MOFs. In many instances, however, even molecular simulation becomes prohibitively time-consuming, underscoring the need for alternative screening methods, such as machine learning, to precede molecular simulation efforts. In this study, as a proof of concept, we trained a neural network-specifically, a multilayer perceptron (MLP)-as the first example of a machine learning model capable of predicting full adsorption isotherms of different molecules not included in the training of the model. To achieve this, we trained our MLP on "alchemical" species, represented only by variables derived from their force-field parameters, to predict the loadings of real adsorbates. Alchemical species used for training were small, near-spherical, and nonpolar, enabling the prediction of analogous real molecules relevant for chemical separations such as argon, krypton, xenon, methane, ethane, and nitrogen. MOFs were also represented by simple descriptors (e.g., geometric properties and chemical moieties). The trained model was shown to make accurate adsorption predictions for these six adsorbates in both hypothetical and existing MOFs. The MLP presented here is not expected to be applied "as is" to more complex adsorbates with properties not considered during its training. However, our results illustrate a new philosophy of training that can be built upon with the goal of predicting adsorption isotherms in not only a database of MOFs but also a database of adsorbates and over a range of relevant operating conditions.
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Affiliation(s)
- Ryther Anderson
- Department of Chemical and Biological Engineering , Colorado School of Mines , Golden , Colorado 80401 , United States
| | - Achay Biong
- Department of Chemical and Biological Engineering , Colorado School of Mines , Golden , Colorado 80401 , United States
| | - Diego A Gómez-Gualdrón
- Department of Chemical and Biological Engineering , Colorado School of Mines , Golden , Colorado 80401 , United States
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Lyu J, Zhang X, Chen Z, Anderson R, Wang X, Wasson MC, Bai P, Guo X, Islamoglu T, Gómez-Gualdrón DA, Farha OK. Modular Synthesis of Highly Porous Zr-MOFs Assembled from Simple Building Blocks for Oxygen Storage. ACS APPLIED MATERIALS & INTERFACES 2019; 11:42179-42185. [PMID: 31638371 DOI: 10.1021/acsami.9b14439] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The last decade has witnessed significant advances in the scale-up synthesis of metal-organic frameworks (MOFs) using commercially available and affordable organic linkers. However, the synthesis of MOFs using elongated and/or multitopic linkers to access MOFs with large pore volume and/or various topologies can often be challenging due to multistep organic syntheses involved for linker preparation. In this report, a modular MOF synthesis strategy is developed by utilizing the coordination and covalent bonds formation in one-pot strategy where monoacid-based ligands reacted to form ditopic ligands, which then assembled into a three-dimensional MOF with Zr6 clusters. Chemical stability of the resulting materials was significantly enhanced through converting the imine bond into robust linkage via cycloaddition with phenylacetylene. Oxygen storage capacities of the MOFs were measured, and enhanced volumetric O2 uptake was observed for the stabilized MOF, NU-401-Q.
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Affiliation(s)
- Jiafei Lyu
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300350 , China
- Key Laboratory of Systems Bioengineering, Ministry of Education , Tianjin University , Tianjin 300350 , China
- Department of Chemistry and International Institute of Nanotechnology , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
| | - Xuan Zhang
- Department of Chemistry and International Institute of Nanotechnology , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
| | - Zhijie Chen
- Department of Chemistry and International Institute of Nanotechnology , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
| | - Ryther Anderson
- Department of Chemical and Biological Engineering , Colorado School of Mines , Golden , Colorado 80401 , United States
| | - Xingjie Wang
- Department of Chemistry and International Institute of Nanotechnology , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
| | - Megan C Wasson
- Department of Chemistry and International Institute of Nanotechnology , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
| | - Peng Bai
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300350 , China
- Key Laboratory of Systems Bioengineering, Ministry of Education , Tianjin University , Tianjin 300350 , China
| | - Xianghai Guo
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300350 , China
- Key Laboratory of Systems Bioengineering, Ministry of Education , Tianjin University , Tianjin 300350 , China
| | - Timur Islamoglu
- Department of Chemistry and International Institute of Nanotechnology , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
| | - Diego A Gómez-Gualdrón
- Department of Chemical and Biological Engineering , Colorado School of Mines , Golden , Colorado 80401 , United States
| | - Omar K Farha
- Department of Chemistry and International Institute of Nanotechnology , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
- Department of Chemical and Biological Engineering , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States
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38
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Tsivadze AY, Aksyutin OE, Ishkov AG, Knyazeva MK, Solovtsova OV, Men'shchikov IE, Fomkin AA, Shkolin AV, Khozina EV, Grachev VA. Metal-organic framework structures: adsorbents for natural gas storage. RUSSIAN CHEMICAL REVIEWS 2019. [DOI: 10.1070/rcr4873] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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