1
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Liu S, Zhang Y, Zhu F, Liu J, Wan X, Liu R, Liu X, Shang J, Yu R, Feng Q, Wang Z, Shui J. Mg-MOF-74 Derived Defective Framework for Hydrogen Storage at Above-Ambient Temperature Assisted by Pt Catalyst. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2401868. [PMID: 38460160 PMCID: PMC11095220 DOI: 10.1002/advs.202401868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Indexed: 03/11/2024]
Abstract
Metal-organic frameworks (MOFs) are promising candidates for room-temperature hydrogen storage materials after modification, thanks to their ability to chemisorb hydrogen. However, the hydrogen adsorption strength of these modified MOFs remains insufficient to meet the capacity and safety requirements of hydrogen storage systems. To address this challenge, a highly defective framework material known as de-MgMOF is prepared by gently annealing Mg-MOF-74. This material retains some of the crystal properties of the original Mg-MOF-74 and exhibits exceptional hydrogen storage capacity at above-ambient temperatures. The MgO5 knots around linker vacancies in de-MgMOF can adsorb a significant amount of dissociated and nondissociated hydrogen, with adsorption enthalpies ranging from -22.7 to -43.6 kJ mol-1, indicating a strong chemisorption interaction. By leveraging a spillover catalyst of Pt, the material achieves a reversible hydrogen storage capacity of 2.55 wt.% at 160 °C and 81 bar. Additionally, this material offers rapid hydrogen uptake/release, stable cycling, and convenient storage capabilities. A comprehensive techno-economic analysis demonstrates that this material outperforms many other hydrogen storage materials at the system level for on-board applications.
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Affiliation(s)
- Shiyuan Liu
- Tianmushan LaboratoryHangzhou310023China
- School of Materials Science and EngineeringBeihang UniversityBeijing100191China
- Department of Applied Biology and Chemical TechnologyThe Hong Kong Polytechnic UniversityHong KongHong Kong SAR999077China
| | - Yue Zhang
- School of Reliability and Systems EngineeringBeihang UniversityBeijing100191China
| | - Fangzhou Zhu
- School of Materials Science and EngineeringBeihang UniversityBeijing100191China
| | - Jieyuan Liu
- School of Materials Science and EngineeringBeihang UniversityBeijing100191China
| | - Xin Wan
- School of Materials Science and EngineeringBeihang UniversityBeijing100191China
| | - Ruonan Liu
- School of Materials Science and EngineeringBeihang UniversityBeijing100191China
| | - Xiaofang Liu
- School of Materials Science and EngineeringBeihang UniversityBeijing100191China
| | - Jia‐Xiang Shang
- School of Materials Science and EngineeringBeihang UniversityBeijing100191China
| | - Ronghai Yu
- School of Materials Science and EngineeringBeihang UniversityBeijing100191China
| | - Qiang Feng
- School of Reliability and Systems EngineeringBeihang UniversityBeijing100191China
| | - Zili Wang
- School of Reliability and Systems EngineeringBeihang UniversityBeijing100191China
| | - Jianglan Shui
- Tianmushan LaboratoryHangzhou310023China
- School of Materials Science and EngineeringBeihang UniversityBeijing100191China
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2
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Yamada E, Sakamoto H, Matsui H, Uruga T, Sugimoto K, Ha MQ, Dam HC, Matsuda R, Tada M. Three-Dimensional Visualization of Adsorption Distribution in a Single Crystalline Particle of a Metal-Organic Framework. J Am Chem Soc 2024; 146:9181-9190. [PMID: 38528433 DOI: 10.1021/jacs.3c14778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Many unique adsorption properties of metal-organic frameworks (MOFs) have been revealed by diffraction crystallography, visualizing their vacant and guest-loaded crystal structures at the molecular scale. However, it has been challenging to see the spatial distribution of the adsorption behaviors throughout a single MOF particle in a transient equilibrium state. Here, we report three-dimensional (3D) visualization of molecular adsorption behaviors in a single crystalline particle of a MOF by in situ X-ray absorption fine structure spectroscopy combined with computed tomography for the first time. The 3D maps of water-coordinated Co sites in a 100 μm-scale MOF-74-Co crystal were obtained with 1 μm spatial resolution under several water vapor pressures. Through the visualization of the water vapor adsorption process, 3D spectroimaging revealed the mechanism and spatial heterogeneity of guest adsorption inside a single particle of a crystalline MOF.
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Affiliation(s)
- Emina Yamada
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8602, Japan
- RIKEN SPring-8 Center, Sayo, Hyogo, 679-5198, Japan
| | - Hirotoshi Sakamoto
- RIKEN SPring-8 Center, Sayo, Hyogo, 679-5198, Japan
- Research Center for Materials Science, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8602, Japan
| | - Hirosuke Matsui
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8602, Japan
- RIKEN SPring-8 Center, Sayo, Hyogo, 679-5198, Japan
| | - Tomoya Uruga
- Japan Synchrotron Radiation Research Center (JASRI)/SPring-8, Koto, Sayo, Hyogo 679-5198, Japan
| | - Kunihisa Sugimoto
- Japan Synchrotron Radiation Research Center (JASRI)/SPring-8, Koto, Sayo, Hyogo 679-5198, Japan
- Faculty of Science and Engineering, Graduate School of Science and Engineering, Kindai University, Kowakae. Higashiosaka, Osaka 577-8502, Japan
| | - Minh-Quyet Ha
- School of Knowledge Science, Japan Advanced Institute of Science and Technology, Asahidai, Nomi, Ishikawa 923-1292, Japan
| | - Hieu-Chi Dam
- School of Knowledge Science, Japan Advanced Institute of Science and Technology, Asahidai, Nomi, Ishikawa 923-1292, Japan
| | - Ryotaro Matsuda
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8603, Japan
- Institute for Advanced Study, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8601, Japan
| | - Mizuki Tada
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8602, Japan
- RIKEN SPring-8 Center, Sayo, Hyogo, 679-5198, Japan
- Research Center for Materials Science, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8602, Japan
- Institute for Advanced Study, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8601, Japan
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3
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Fricke SN, Salgado M, Menezes T, Costa Santos KM, Gallagher NB, Song AY, Wang J, Engler K, Wang Y, Mao H, Reimer JA. Multivariate Machine Learning Models of Nanoscale Porosity from Ultrafast NMR Relaxometry. Angew Chem Int Ed Engl 2024; 63:e202316664. [PMID: 38290006 DOI: 10.1002/anie.202316664] [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: 11/02/2023] [Revised: 01/24/2024] [Accepted: 01/30/2024] [Indexed: 02/01/2024]
Abstract
Nanoporous materials are of great interest in many applications, such as catalysis, separation, and energy storage. The performance of these materials is closely related to their pore sizes, which are inefficient to determine through the conventional measurement of gas adsorption isotherms. Nuclear magnetic resonance (NMR) relaxometry has emerged as a technique highly sensitive to porosity in such materials. Nonetheless, streamlined methods to estimate pore size from NMR relaxometry remain elusive. Previous attempts have been hindered by inverting a time domain signal to relaxation rate distribution, and dealing with resulting parameters that vary in number, location, and magnitude. Here we invoke well-established machine learning techniques to directly correlate time domain signals to BET surface areas for a set of metal-organic frameworks (MOFs) imbibed with solvent at varied concentrations. We employ this series of MOFs to establish a correlation between NMR signal and surface area via partial least squares (PLS), following screening with principal component analysis, and apply the PLS model to predict surface area of various nanoporous materials. This approach offers a high-throughput, non-destructive way to assess porosity in c.a. one minute. We anticipate this work will contribute to the development of new materials with optimized pore sizes for various applications.
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Affiliation(s)
- Sophia N Fricke
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Mia Salgado
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Tamires Menezes
- Department of Process Engineering, Tiradentes University, Aracaju, SE 49010-390, Brazil
| | | | | | - Ah-Young Song
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Jieyu Wang
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Kaitlyn Engler
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Yang Wang
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Haiyan Mao
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA
| | - Jeffrey A Reimer
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
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4
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Chakraborty R, Talbot JJ, Shen H, Yabuuchi Y, Carsch KM, Jiang HZH, Furukawa H, Long JR, Head-Gordon M. Quantum chemical modeling of hydrogen binding in metal-organic frameworks: validation, insight, predictions and challenges. Phys Chem Chem Phys 2024; 26:6490-6511. [PMID: 38324335 DOI: 10.1039/d3cp05540j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
A detailed chemical understanding of H2 interactions with binding sites in the nanoporous crystalline structure of metal-organic frameworks (MOFs) can lay a sound basis for the design of new sorbent materials. Computational quantum chemical calculations can aid in this quest. To set the stage, we review general thermodynamic considerations that control the usable storage capacity of a sorbent. We then discuss cluster modeling of H2 ligation at MOF binding sites using state-of-the-art density functional theory (DFT) calculations, and how the binding can be understood using energy decomposition analysis (EDA). Employing these tools, we illustrate the connections between the character of the MOF binding site and the associated adsorption thermodynamics using four experimentally characterized MOFs, highlighting the role of open metal sites (OMSs) in accessing binding strengths relevant to room temperature storage. The sorbents are MOF-5, with no open metal sites, Ni2(m-dobdc), containing Lewis acidic Ni(II) sites, Cu(I)-MFU-4l, containing π basic Cu(I) sites and V2Cl2.8(btdd), also containing π-basic V(II) sites. We next explore the potential for binding multiple H2 molecules at a single metal site, with thermodynamics useful for storage at ambient temperature; a materials design goal which has not yet been experimentally demonstrated. Computations on Ca2+ or Mg2+ bound to catecholate or Ca2+ bound to porphyrin show the potential for binding up to 4 H2; there is precedent for the inclusion of both catecholate and porphyrin motifs in MOFs. Turning to transition metals, we discuss the prediction that two H2 molecules can bind at V(II)-MFU-4l, a material that has been synthesized with solvent coordinated to the V(II) site. Additional calculations demonstrate binding three equivalents of hydrogen per OMS in Sc(I) or Ti(I)-exchanged MFU-4l. Overall, the results suggest promising prospects for experimentally realizing higher capacity hydrogen storage MOFs, if nontrivial synthetic and desolvation challenges can be overcome. Coupled with the unbounded chemical diversity of MOFs, there is ample scope for additional exploration and discovery.
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Affiliation(s)
- Romit Chakraborty
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Department of Chemistry, University of California, Berkeley, CA 94720, USA.
| | - Justin J Talbot
- Department of Chemistry, University of California, Berkeley, CA 94720, USA.
| | - Hengyuan Shen
- Department of Chemistry, University of California, Berkeley, CA 94720, USA.
| | - Yuto Yabuuchi
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Department of Chemistry, University of California, Berkeley, CA 94720, USA.
| | - Kurtis M Carsch
- Department of Chemistry, University of California, Berkeley, CA 94720, USA.
| | - Henry Z H Jiang
- Department of Chemistry, University of California, Berkeley, CA 94720, USA.
| | - Hiroyasu Furukawa
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Department of Chemistry, University of California, Berkeley, CA 94720, USA.
| | - Jeffrey R Long
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Department of Chemistry, University of California, Berkeley, CA 94720, USA.
- Department of Chemical and Biomedical Engineering, University of California, Berkeley, CA 94720, USA
| | - Martin Head-Gordon
- Department of Chemistry, University of California, Berkeley, CA 94720, USA.
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
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5
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Mow R, Russell-Parks GA, Redwine GEB, Petel BE, Gennett T, Braunecker WA. Polymer-Coated Covalent Organic Frameworks as Porous Liquids for Gas Storage. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2024; 36:1579-1590. [PMID: 38370283 PMCID: PMC10870717 DOI: 10.1021/acs.chemmater.3c02828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 01/02/2024] [Accepted: 01/04/2024] [Indexed: 02/20/2024]
Abstract
Several synthetic methods have recently emerged to develop high-surface-area solid-state organic framework-based materials into free-flowing liquids with permanent porosity. The fluidity of these porous liquid (PL) materials provides them with advantages in certain storage and transport processes. However, most framework-based materials necessitate the use of cryogenic temperatures to store weakly bound gases such as H2, temperatures where PLs lose their fluidity. Covalent organic framework (COF)-based PLs that could reversibly form stable complexes with H2 near ambient temperatures would represent a promising development for gas storage and transport applications. We report here the development, characterization, and evaluation of a material with these remarkable characteristics based on Cu(I)-loaded COF colloids. Our synthetic strategy required tailoring conditions for growing robust coatings of poly(dimethylsiloxane)-methacrylate (PDMS-MA) around COF colloids using atom transfer radical polymerization (ATRP). We demonstrate exquisite control over the coating thickness on the colloidal COF, quantified by transmission electron microscopy and dynamic light scattering. The coated COF material was then suspended in a liquid polymer matrix to make a PL. CO2 isotherms confirmed that the coating preserved the general porosity of the COF in the free-flowing liquid, while CO sorption measurements using diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) confirmed the preservation of Cu(I) coordination sites. We then evaluated the gas sorption phenomenon in the Cu(I)-COF-based PLs using DRIFTS and temperature-programmed desorption measurements. In addition to confirming that H2 transport is possible at or near mild refrigeration temperatures with these materials, our observations indicate that H2 diffusion is significantly influenced by the glass-transition temperature of both the coating and the liquid matrix. The latter result underscores an additional potential advantage of PLs in tailoring gas diffusion and storage temperatures through the coating composition.
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Affiliation(s)
- Rachel
E. Mow
- Materials
Science Program, Colorado School of Mines, Golden, Colorado 80401, United States
- Chemistry
and Nanoscience Center, National Renewable
Energy Laboratory, 15013 Denver West Pkwy, Golden, Colorado 80401, United States
| | - Glory A. Russell-Parks
- Department
of Chemistry, Colorado School of Mines, 1012 14th Street, Golden, Colorado 80401, United States
- Chemistry
and Nanoscience Center, National Renewable
Energy Laboratory, 15013 Denver West Pkwy, Golden, Colorado 80401, United States
| | - Grace E. B. Redwine
- Department
of Chemistry, Colorado School of Mines, 1012 14th Street, Golden, Colorado 80401, United States
- Chemistry
and Nanoscience Center, National Renewable
Energy Laboratory, 15013 Denver West Pkwy, Golden, Colorado 80401, United States
| | - Brittney E. Petel
- Catalytic
Carbon Transformation and Scale-Up Center, National Renewable Energy Laboratory, 15013 Denver West Pkwy, Golden, Colorado 80401, United States
| | - Thomas Gennett
- Materials
Science Program, Colorado School of Mines, Golden, Colorado 80401, United States
- Department
of Chemistry, Colorado School of Mines, 1012 14th Street, Golden, Colorado 80401, United States
- Chemistry
and Nanoscience Center, National Renewable
Energy Laboratory, 15013 Denver West Pkwy, Golden, Colorado 80401, United States
| | - Wade A. Braunecker
- Department
of Chemistry, Colorado School of Mines, 1012 14th Street, Golden, Colorado 80401, United States
- Chemistry
and Nanoscience Center, National Renewable
Energy Laboratory, 15013 Denver West Pkwy, Golden, Colorado 80401, United States
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6
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Main RM, Vornholt SM, Ettlinger R, Netzsch P, Stanzione MG, Rice CM, Elliott C, Russell SE, Warren MR, Ashbrook SE, Morris RE. In Situ Single-crystal X-ray Diffraction Studies of Physisorption and Chemisorption of SO 2 within a Metal-Organic Framework and Its Competitive Adsorption with Water. J Am Chem Soc 2024; 146:3270-3278. [PMID: 38275220 PMCID: PMC10859936 DOI: 10.1021/jacs.3c11847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 01/27/2024]
Abstract
Living on an increasingly polluted planet, the removal of toxic pollutants such as sulfur dioxide (SO2) from the troposphere and power station flue gas is becoming more and more important. The CPO-27/MOF-74 family of metal-organic frameworks (MOFs) with their high densities of open metal sites is well suited for the selective adsorption of gases that, like SO2, bind well to metals and have been extensively researched both practically and through computer simulations. However, until now, focus has centered upon the binding of SO2 to the open metal sites in this MOF (called chemisorption, where the adsorbent-adsorbate interaction is through a chemical bond). The possibility of physisorption (where the adsorbent-adsorbate interaction is only through weak intermolecular forces) has not been identified experimentally. This work presents an in situ single-crystal X-ray diffraction (scXRD) study that identifies discrete adsorption sites within Ni-MOF-74/Ni-CPO-27, where SO2 is both chemisorbed and physisorbed while also probing competitive adsorption of SO2 of these sites when water is present. Further features of this site have been confirmed by variable SO2 pressure scXRD studies, DFT calculations, and IR studies.
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Affiliation(s)
- Russell M. Main
- EaStCHEM
School of Chemistry, Purdie Building,
North Haugh, St AndrewsKY16 9ST, U.K.
| | - Simon M. Vornholt
- Department
of Chemistry, SUNY Stony Brook, 100 Nicolls Road, 104 Chemistry, Stony Brook, New York11790-3400, United
States
| | - Romy Ettlinger
- EaStCHEM
School of Chemistry, Purdie Building,
North Haugh, St AndrewsKY16 9ST, U.K.
| | - Philip Netzsch
- EaStCHEM
School of Chemistry, Purdie Building,
North Haugh, St AndrewsKY16 9ST, U.K.
| | | | - Cameron M. Rice
- EaStCHEM
School of Chemistry, Purdie Building,
North Haugh, St AndrewsKY16 9ST, U.K.
| | - Caroline Elliott
- EaStCHEM
School of Chemistry, Purdie Building,
North Haugh, St AndrewsKY16 9ST, U.K.
| | - Samantha E. Russell
- EaStCHEM
School of Chemistry, Purdie Building,
North Haugh, St AndrewsKY16 9ST, U.K.
| | - Mark R. Warren
- Diamond
Light Source Ltd, Diamond House, Harwell Science & Innovation
Campus, Didcot OX11 0DE, U.K.
| | - Sharon E. Ashbrook
- EaStCHEM
School of Chemistry, Purdie Building,
North Haugh, St AndrewsKY16 9ST, U.K.
| | - Russell E. Morris
- EaStCHEM
School of Chemistry, Purdie Building,
North Haugh, St AndrewsKY16 9ST, U.K.
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7
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Gao Y, Li Z, Wang P, Cui WG, Wang X, Yang Y, Gao F, Zhang M, Gan J, Li C, Liu Y, Wang X, Qi F, Zhang J, Han X, Du W, Chen J, Xia Z, Pan H. Experimentally validated design principles of heteroatom-doped-graphene-supported calcium single-atom materials for non-dissociative chemisorption solid-state hydrogen storage. Nat Commun 2024; 15:928. [PMID: 38296957 PMCID: PMC10830568 DOI: 10.1038/s41467-024-45082-9] [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: 07/15/2023] [Accepted: 01/11/2024] [Indexed: 02/02/2024] Open
Abstract
Non-dissociative chemisorption solid-state storage of hydrogen molecules in host materials is promising to achieve both high hydrogen capacity and uptake rate, but there is the lack of non-dissociative hydrogen storage theories that can guide the rational design of the materials. Herein, we establish generalized design principle to design such materials via the first-principles calculations, theoretical analysis and focused experimental verifications of a series of heteroatom-doped-graphene-supported Ca single-atom carbon nanomaterials as efficient non-dissociative solid-state hydrogen storage materials. An intrinsic descriptor has been proposed to correlate the inherent properties of dopants with the hydrogen storage capability of the carbon-based host materials. The generalized design principle and the intrinsic descriptor have the predictive ability to screen out the best dual-doped-graphene-supported Ca single-atom hydrogen storage materials. The dual-doped materials have much higher hydrogen storage capability than the sole-doped ones, and exceed the current best carbon-based hydrogen storage materials.
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Affiliation(s)
- Yong Gao
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Zhenglong Li
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Pan Wang
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Wen-Gang Cui
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Xiaowei Wang
- Department of Materials Science and Engineering, University of North Texas, Denton, TX, 76203, USA
| | - Yaxiong Yang
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Fan Gao
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Mingchang Zhang
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Jiantuo Gan
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Chenchen Li
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Yanxia Liu
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Xinqiang Wang
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Fulai Qi
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Jing Zhang
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Xiao Han
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Wubin Du
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, PR China
| | - Jian Chen
- School of Materials Science and Chemical Engineering, Xi'an Technological University, Xi'an, 710021, China.
| | - Zhenhai Xia
- Australian Carbon Materials Centre, School of Chemical Engineering, University of New South Wales, Sydney, NSW, 2052, Australia.
| | - Hongge Pan
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China.
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8
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Wang Y, Xue Y, Züttel A. Nanoscale engineering of solid-state materials for boosting hydrogen storage. Chem Soc Rev 2024; 53:972-1003. [PMID: 38111973 DOI: 10.1039/d3cs00706e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
The development of novel materials capable of securely storing hydrogen at high volumetric and gravimetric densities is a requirement for the wide-scale usage of hydrogen as an energy carrier. In recent years, great efforts via nanoscale tuning and designing strategies on both physisorbents and chemisorbents have been devoted to improvements in their thermodynamic and kinetic aspects. Increasing the hydrogen storage capacity/density for physisorbents and chemisorbents and improving the dehydrogenation kinetics of hydrides are still considered a challenge. The extensive and fast development of advanced nanotechnologies has fueled a surge in research that presents huge potential in designing solid-state materials to meet the ultimate U.S. Department of Energy capacity targets for onboard light-duty vehicles, material-handling equipments, and portable power applications. Different from the existing literature, in this review, particular attention is paid to the recent advances in nanoscale engineering of solid-state materials for boosting hydrogen storage, especially the nanoscale tuning and designing strategies. We first present a short overview of hydrogen storage mechanisms of nanoscale engineering for boosted hydrogen storage performance on solid-state materials, for example, hydrogen spillover, nanopump effect, nanosize effect, nanocatalysis, and other non-classical hydrogen storage mechanisms. Then, the focus is on recent advancements in nanoscale engineering strategies aimed at enhancing the gravimetric hydrogen storage capacity of porous materials, reducing dehydrogenation temperature and improving reaction kinetics and reversibility of hydrogen desorption/absorption for metal hydrides. Effective nanoscale tuning strategies for enhancing the hydrogen storage performance of porous materials include optimizing surface area and pore volume, fine-tuning nanopore sizes, introducing nanostructure doping, and crafting nanoarchitecture and nanohybrid materials. For metal hydrides, successful strategies involve nanoconfinement, nanosizing, and the incorporation of nanocatalysts. This review further addresses the points to future research directions in the hope of ushering in the practical applications of hydrogen storage materials.
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Affiliation(s)
- Yunting Wang
- Institute of Chemical Sciences and Engineering, École polytechnique fédérale de Lausanne (EPFL), CH-1950 Sion, Switzerland.
- Empa Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Yudong Xue
- Institute of Chemical Sciences and Engineering, École polytechnique fédérale de Lausanne (EPFL), CH-1950 Sion, Switzerland.
| | - Andreas Züttel
- Institute of Chemical Sciences and Engineering, École polytechnique fédérale de Lausanne (EPFL), CH-1950 Sion, Switzerland.
- Empa Materials Science and Technology, 8600 Dübendorf, Switzerland
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9
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Chen Y, Yang H, Wang W, Li X, Wang Y, Hong AN, Bu X, Feng P. Multi-Modular Design of Stable Pore-Space-Partitioned Metal-Organic Frameworks for Gas Separation Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303540. [PMID: 37420325 DOI: 10.1002/smll.202303540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/20/2023] [Indexed: 07/09/2023]
Abstract
Pore space partition (PSP) is an effective materials design method for developing high-performance small-pore materials for storage and separation of gas molecules. The continued success of PSP depends on broad availability and judicious choice of pore-partition ligands and better understanding of each structural module on stability and sorption properties. Here, by using substructural bioisosteric strategy (sub-BIS), a dramatic expansion of pore-partitioned materials is targeted by using ditopic dipyridyl ligands with non-aromatic cores or extenders, as well as by expanding heterometallic clusters to uncommon nickel-vanadium and nickel-indium clusters rarely known before in porous materials. The dual-module iterative refinement of pore-partition ligands and trimers leads to remarkable enhancement of chemical stability and porosity. Here a family of 23 pore-partitioned materials synthesized from five pore-partition ligands and seven types of trimeric clusters is reported. New materials with such compositionally and structurally diverse framework modules reveal key factors that dictate stability, porosity, and gas separation properties. Among these, materials based on heterometallic vanadium-nickel trimeric clusters give rise to the highest long-term hydrolytic stability and remarkable uptake capacity for CO2 , C2 H2 /C2 H4 /C2 H6 , and C3 H6 /C3 H8 hydrocarbon gases. The breakthrough experiment shows the potential application of new materials for separating gas mixtures such as C2 H2 /CO2 .
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Affiliation(s)
- Yichong Chen
- Department of Chemistry, University of California Riverside, 501 Big Springs Road, Riverside, CA, 92521, USA
| | - Huajun Yang
- Department of Chemistry and Biochemistry, California State University Long Beach, 1250 Bellflower Boulevard, Long Beach, CA, 90840, USA
| | - Wei Wang
- Department of Chemistry, University of California Riverside, 501 Big Springs Road, Riverside, CA, 92521, USA
| | - Xiangxiang Li
- Department of Chemistry, University of California Riverside, 501 Big Springs Road, Riverside, CA, 92521, USA
| | - Yanxiang Wang
- Department of Chemistry, University of California Riverside, 501 Big Springs Road, Riverside, CA, 92521, USA
| | - Anh N Hong
- Department of Chemistry, University of California Riverside, 501 Big Springs Road, Riverside, CA, 92521, USA
| | - Xianhui Bu
- Department of Chemistry and Biochemistry, California State University Long Beach, 1250 Bellflower Boulevard, Long Beach, CA, 90840, USA
| | - Pingyun Feng
- Department of Chemistry, University of California Riverside, 501 Big Springs Road, Riverside, CA, 92521, USA
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10
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Azbell TJ, Pitt TA, Jerozal RT, Mandel RM, Milner PJ. Simplifying the Synthesis of Metal-Organic Frameworks. ACCOUNTS OF MATERIALS RESEARCH 2023; 4:867-878. [PMID: 38226178 PMCID: PMC10788152 DOI: 10.1021/accountsmr.3c00121] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
Metal-organic frameworks (MOFs) are porous, crystalline materials constructed from organic linkers and inorganic nodes that have attracted widespread interest due to their permanent porosity and highly modular structures. However, the large volumes of organic solvents and additives, long reaction times, and specialized equipment typically required to synthesize MOFs hinder their widespread adoption in both academia and industry. Recently, our lab has developed several user-friendly methods for the gram-scale (1-100 g) preparation of MOFs. Herein, we summarize our progress in the development of high-concentration solvothermal, mechanochemical, and ionothermal syntheses of MOFs, as well as in minimizing the amount of modulators required to prepare highly crystalline Zr-MOFs. To begin, we detail our work elucidating key features of acid modulation in Zr-MOFs to improve upon current dilute solvothermal syntheses. Choosing an optimal modulator maximizes the crystallinity and porosity of Zr-MOFs while minimizing the quantity of modulator needed, reducing the waste associated with MOF synthesis. By evaluating a range of modulators, we identify the pKa, size, and structural similarity of the modulator to the linker as controlling factors in modulating ability. In the following section, we describe two high-concentration solvothermal methods for the synthesis of Zr-MOFs and demonstrate their generality among a range of frameworks. We also target the M2(dobdc) (M = Mg, Mn, Fe, Co, Ni, Cu, Zn, Cd; dobdc4- = 2,5-dioxido-1,4-benzenedicarboxylate) family of MOFs for high-concentration synthesis and introduce a two-step preparation of several variants that proceeds through a novel kinetic phase. The high-concentration methods we discuss produce MOFs on multi-gram scale with comparable properties to those prepared under traditional dilute solvothermal conditions. Next, to further curtail solvent waste and accelerate reaction times, we discuss the mechanochemical preparation of M2(dobdc) MOFs utilizing liquid amine additives in a planetary ball mill, which we also apply to the synthesis of two related salicylate frameworks. These samples exhibit comparable porosities to traditional dilute solvothermal samples but can be synthesized in just minutes, as opposed to days, and require under 1 mL of liquid additive to prepare ~0.5 g of material. In the following section, we discuss our efforts to avoid specialized equipment and eliminate solvent use entirely by employing ionothermal conditions to prepare a variety of azolate- and salicylate-based MOFs. Simply combining metal chloride (hydrate) salts with organic linkers at temperatures above the melting points of the salts affords high-quality framework materials. Further, ionothermal conditions enable the syntheses of two new Fe(III) M2(dobdc) derivatives that cannot be synthesized under normal solvothermal conditions. Last, as a demonstrative example, we discuss our efforts to synthesize 100 g of high-quality Mg2(dobdc) in a single batch using a high-concentration (1.0 M) hydrothermal synthesis. Our Account will be of significant interest to researchers aiming to prepare gram-scale quantities of MOFs for further study.
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Affiliation(s)
- Tyler J Azbell
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14850, United States
| | - Tristan A Pitt
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14850, United States
| | - Ronald T Jerozal
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14850, United States
| | - Ruth M Mandel
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14850, United States
| | - Phillip J Milner
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14850, United States
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11
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Chen Y, Lu W, Schröder M, Yang S. Analysis and Refinement of Host-Guest Interactions in Metal-Organic Frameworks. Acc Chem Res 2023; 56:2569-2581. [PMID: 37646412 PMCID: PMC10552526 DOI: 10.1021/acs.accounts.3c00243] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Indexed: 09/01/2023]
Abstract
ConspectusMetal-organic frameworks (MOFs) are a class of hybrid porous materials characterized by their periodic assembly using metal ions and organic ligands through coordination bonds. Their high crystallinity, extensive surface area, and adjustable pore sizes make them promising candidates for a wide array of applications. These include gas adsorption and separation, substrate binding, and catalysis, of relevance to tackling pressing global issues such as climate change, energy challenges, and pollution. In comparison to traditional porous materials such as zeolites and activated carbons, the design flexibility of organic ligands in MOFs, coupled with their orderly arrangement with associated metal centers, allows for the precise engineering of uniform pore environments. This unique feature enables a rich variety of interactions between the MOF host and adsorbed gas molecules, which are fundamental to understanding the observed uptake capacity and selectivity for target gas molecules and thus the overall performance of the material.In this Account, a data set for three-dimensional MOFs has been constructed based upon the structural analysis of host-guest interactions using the largest experimental database, the Cambridge Structural Database (CSD). A full screening was performed on structures with guest molecules of H2, C2H2, CO2, and SO2, and the relationship between the primary binding site, the isosteric heats of adsorption (Qst), and the adsorption uptake was extracted and established. We review the methodologies to refine host-guest interactions based primarily on our studies on the host-guest chemistry of MOFs. The methods include ligand functionalization, variation of metal centers, formation of defects, addition of single atom sites, and control of pore size and structure. In situ structural and dynamic investigations using diffraction and spectroscopic techniques are powerful tools to visualize the details of host-guest interactions upon the above modifications, affording key insights into functional performance at a molecular level. Finally, we give an outlook of future research priorities in the study of host-guest chemistry in MOF materials. We hope this Account will encourage the rational development and improvement of future MOF-based sorbents for applications in challenging gas adsorption, separations, and catalysis.
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Affiliation(s)
- Yinlin Chen
- Department
of Chemistry, University of Manchester, Manchester M13 9PL, U.K.
| | - Wanpeng Lu
- Department
of Chemistry, University of Manchester, Manchester M13 9PL, U.K.
| | - Martin Schröder
- Department
of Chemistry, University of Manchester, Manchester M13 9PL, U.K.
| | - Sihai Yang
- Department
of Chemistry, University of Manchester, Manchester M13 9PL, U.K.
- College
of Chemistry and Molecular Engineering, Beijing National Laboratory
for Molecular Sciences, Peking University, Beijing 100871, China
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12
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Keasler KT, Zick ME, Stacy EE, Kim J, Lee JH, Aeindartehran L, Runčevski T, Milner PJ. Handling fluorinated gases as solid reagents using metal-organic frameworks. Science 2023; 381:1455-1461. [PMID: 37769097 PMCID: PMC10799685 DOI: 10.1126/science.adg8835] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 08/24/2023] [Indexed: 09/30/2023]
Abstract
Fluorine is an increasingly common substituent in pharmaceuticals and agrochemicals because it improves the bioavailability and metabolic stability of organic molecules. Fluorinated gases represent intuitive building blocks for the late-stage installation of fluorinated groups, but they are generally overlooked because they require the use of specialized equipment. We report a general strategy for handling fluorinated gases as benchtop-stable solid reagents using metal-organic frameworks (MOFs). Gas-MOF reagents are prepared on gram-scale and used to facilitate fluorovinylation and fluoroalkylation reactions. Encapsulation of gas-MOF reagents within wax enables stable storage on the benchtop and controlled release into solution upon sonication, which represents a safer alternative to handling the gas directly. Furthermore, our approach enables high-throughput reaction development with these gases.
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Affiliation(s)
- Kaitlyn T. Keasler
- Department of Chemistry and Chemical Biology, Cornell University; Ithaca, New York 14850, United States
| | - Mary E. Zick
- Department of Chemistry and Chemical Biology, Cornell University; Ithaca, New York 14850, United States
| | - Emily E. Stacy
- Department of Chemistry and Chemical Biology, Cornell University; Ithaca, New York 14850, United States
| | - Jaehwan Kim
- Department of Chemistry and Chemical Biology, Cornell University; Ithaca, New York 14850, United States
| | - Jung-Hoon Lee
- Computational Science Research Center, Korea Institute of Science and Technology (KIST); Seoul 02792, Republic of Korea
| | - Lida Aeindartehran
- Department of Chemistry, Southern Methodist University; Dallas, Texas 75275, United States
| | - Tomče Runčevski
- Department of Chemistry, Southern Methodist University; Dallas, Texas 75275, United States
| | - Phillip J. Milner
- Department of Chemistry and Chemical Biology, Cornell University; Ithaca, New York 14850, United States
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13
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Thom AJR, Turner GF, Davis ZH, Ward MR, Pakamorė I, Hobday CL, Allan DR, Warren MR, Leung WLW, Oswald IDH, Morris RE, Moggach SA, Ashbrook SE, Forgan RS. Pressure-induced postsynthetic cluster anion substitution in a MIL-53 topology scandium metal-organic framework. Chem Sci 2023; 14:7716-7724. [PMID: 37476711 PMCID: PMC10355111 DOI: 10.1039/d3sc00904a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 06/17/2023] [Indexed: 07/22/2023] Open
Abstract
Postsynthetic modification of metal-organic frameworks (MOFs) has proven to be a hugely powerful tool to tune physical properties and introduce functionality, by exploiting reactive sites on both the MOF linkers and their inorganic secondary building units (SBUs), and so has facilitated a wide range of applications. Studies into the reactivity of MOF SBUs have focussed solely on removal of neutral coordinating solvents, or direct exchange of linkers such as carboxylates, despite the prevalence of ancillary charge-balancing oxide and hydroxide ligands found in many SBUs. Herein, we show that the μ2-OH ligands in the MIL-53 topology Sc MOF, GUF-1, are labile, and can be substituted for μ2-OCH3 units through reaction with pore-bound methanol molecules in a very rare example of pressure-induced postsynthetic modification. Using comprehensive solid-state NMR spectroscopic analysis, we show an order of magnitude increase in this cluster anion substitution process after exposing bulk samples suspended in methanol to a pressure of 0.8 GPa in a large volume press. Additionally, single crystals compressed in diamond anvil cells with methanol as the pressure-transmitting medium have enabled full structural characterisation of the process across a range of pressures, leading to a quantitative single-crystal to single-crystal conversion at 4.98 GPa. This unexpected SBU reactivity - in this case chemisorption of methanol - has implications across a range of MOF chemistry, from activation of small molecules for heterogeneous catalysis to chemical stability, and we expect cluster anion substitution to be developed into a highly convenient novel method for modifying the internal pore surface and chemistry of a range of porous materials.
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Affiliation(s)
- Alexander J R Thom
- WestCHEM School of Chemistry, University of Glasgow Joseph Black Building, University Avenue Glasgow G12 8QQ UK
| | - Gemma F Turner
- School of Molecular Sciences, The University of Western Australia 35 Stirling Highway, Crawley Perth Western Australia 6009 Australia
| | - Zachary H Davis
- EaStCHEM School of Chemistry and Centre of Magnetic Resonance, University of St Andrews St Andrews KY16 9ST UK
| | - Martin R Ward
- Strathclyde Institute of Pharmacy & Biomedical Sciences (SIPBS), University of Strathclyde 161 Cathedral Street Glasgow G4 0RE UK
| | - Ignas Pakamorė
- WestCHEM School of Chemistry, University of Glasgow Joseph Black Building, University Avenue Glasgow G12 8QQ UK
| | - Claire L Hobday
- EaStCHEM School of Chemistry and Centre for Science at Extreme Conditions, The University of Edinburgh King's Buildings, David Brewster Road Edinburgh EH9 3FJ UK
| | - David R Allan
- Diamond Light Source Ltd, Harwell Science and Innovation Campus Didcot Oxfordshire OX11 0DE UK
| | - Mark R Warren
- Diamond Light Source Ltd, Harwell Science and Innovation Campus Didcot Oxfordshire OX11 0DE UK
| | - Wai L W Leung
- WestCHEM School of Chemistry, University of Glasgow Joseph Black Building, University Avenue Glasgow G12 8QQ UK
| | - Iain D H Oswald
- Strathclyde Institute of Pharmacy & Biomedical Sciences (SIPBS), University of Strathclyde 161 Cathedral Street Glasgow G4 0RE UK
| | - Russell E Morris
- EaStCHEM School of Chemistry and Centre of Magnetic Resonance, University of St Andrews St Andrews KY16 9ST UK
| | - Stephen A Moggach
- School of Molecular Sciences, The University of Western Australia 35 Stirling Highway, Crawley Perth Western Australia 6009 Australia
| | - Sharon E Ashbrook
- EaStCHEM School of Chemistry and Centre of Magnetic Resonance, University of St Andrews St Andrews KY16 9ST UK
| | - Ross S Forgan
- WestCHEM School of Chemistry, University of Glasgow Joseph Black Building, University Avenue Glasgow G12 8QQ UK
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14
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Azbell TJ, Pitt TA, Bollmeyer MM, Cong C, Lancaster KM, Milner PJ. Ionothermal Synthesis of Metal-Organic Frameworks Using Low-Melting Metal Salt Precursors. Angew Chem Int Ed Engl 2023; 62:e202218252. [PMID: 36811601 PMCID: PMC10079605 DOI: 10.1002/anie.202218252] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 02/16/2023] [Accepted: 02/22/2023] [Indexed: 02/24/2023]
Abstract
Metal-organic frameworks (MOFs) are porous, crystalline materials constructed from organic linkers and inorganic nodes with myriad potential applications in chemical separations, catalysis, and drug delivery. A major barrier to the application of MOFs is their poor scalability, as most frameworks are prepared under highly dilute solvothermal conditions using toxic organic solvents. Herein, we demonstrate that combining a range of linkers with low-melting metal halide (hydrate) salts leads directly to high-quality MOFs without added solvent. Frameworks prepared under these ionothermal conditions possess porosities comparable to those prepared under traditional solvothermal conditions. In addition, we report the ionothermal syntheses of two frameworks that cannot be prepared directly under solvothermal conditions. Overall, the user-friendly method reported herein should be broadly applicable to the discovery and synthesis of stable metal-organic materials.
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Affiliation(s)
- Tyler J Azbell
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14850, USA
| | - Tristan A Pitt
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14850, USA
| | - Melissa M Bollmeyer
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14850, USA
| | - Christina Cong
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14850, USA
- Current address: Department of Chemistry, Princeton University, Princeton, NJ, 08544, USA
| | - Kyle M Lancaster
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14850, USA
| | - Phillip J Milner
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14850, USA
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15
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In situ single-crystal synchrotron X-ray diffraction studies of biologically active gases in metal-organic frameworks. Commun Chem 2023; 6:44. [PMID: 36859657 PMCID: PMC9977776 DOI: 10.1038/s42004-023-00845-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 02/22/2023] [Indexed: 03/03/2023] Open
Abstract
Metal-organic frameworks (MOFs) are well known for their ability to adsorb various gases. The use of MOFs for the storage and release of biologically active gases, particularly nitric oxide (NO) and carbon monoxide (CO), has been a subject of interest. To elucidate the binding mechanisms and geometry of these gases, an in situ single crystal X-ray diffraction (scXRD) study using synchrotron radiation at Diamond Light Source has been performed on a set of MOFs that display promising gas adsorption properties. NO and CO, were introduced into activated Ni-CPO-27 and the related Co-4,6-dihydroxyisophthalate (Co-4,6-dhip). Both MOFs show strong binding affinity towards CO and NO, however CO suffers more from competitive co-adsorption of water. Additionally, we show that morphology can play an important role in the ease of dehydration for these two systems.
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16
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Jose R, Pal S, Rajaraman G. A Theoretical Perspective to Decipher the Origin of High Hydrogen Storage Capacity in Mn(II) Metal-Organic Framework. Chemphyschem 2023; 24:e202200257. [PMID: 36330697 DOI: 10.1002/cphc.202200257] [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: 04/14/2022] [Revised: 11/03/2022] [Indexed: 11/06/2022]
Abstract
Herein, we report a detailed periodic DFT investigation of Mn(II)-based [(Mn4 Cl)3 (BTT)8 ]3- (BTT3- =1,3,5-benzenetristetrazolate) metal-organic framework (MOF) to explore various hydrogen binding pockets, nature of MOF…H2 interactions, magnetic coupling and, H2 uptake capacity. Earlier experiments found an uptake capacity of 6.9 wt % of H2, with the heat of adsorption estimated to be ∼10 kJ/mol, which is one among the highest for any MOFs reported. Our calculations unveil different binding sites with computed binding energy varying from -6 to -15 kJ/mol. The binding of H2 at the Mn2+ site is found to be the strongest (site I), with H2 found to bind Mn2+ ion in a η2 fashion with a distance of 2.27 Å and binding energy of -15.4 kJ/mol. The bonding analysis performed using NBO and AIM reveal a strong donation of σ (H2 ) to the dz 2 orbital of the Mn2+ ion responsible for such large binding energy. The other binding pockets, such as -Cl (site II) and BTT ligands (site III and IV) were found to be weaker, with the binding energy decreasing in the order I>II>III>IV. The average binding energy computed for these four sites put together is 9.6 kJ/mol, which is in excellent agreement with the experimental value of ∼10 kJ/mol. We have expanded our calculations to compute binding energy for multiple sites simultaneously, and in this model, the binding energy per site was found to decrease as we increased the number of H2 molecules suggesting electronic and steric factors controlling the overall uptake capacity. The calculated adsorption isotherm using the GCMC method reproduces the experimental observations. Further, the magnetic coupling computed for the unbound MOF reveals moderate ferromagnetic and strong antiferromagnetic coupling within the tetrameric {Mn4 } unit leading to a three-up-one-down spin configuration as the ground state. These were then coupled ferromagnetically to other tetrameric units in the MOF network. The magnetic coupling was found to alter only marginally upon gas binding, suggesting that both exchange interaction and the spin-states are unlikely to play a role in the H2 uptake. This is contrary to the O2 uptake studied lately, where strong dependence on exchange-coupling/spin state was witnessed, suggesting exchange-coupling/magnetic field dependent binding as a viable route for gas separation.
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Affiliation(s)
- Reshma Jose
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Sourav Pal
- Department of Chemistry, Indian Institute of Science Education and Research, Kolkata, Mohanpur, Nadia, 741246, India.,Department of Chemistry, Ashoka University, Sonipat, Haryana, 131029, India
| | - Gopalan Rajaraman
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
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17
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Chen EY, Mandel RM, Milner PJ. Evaluating Solvothermal and Mechanochemical Routes towards the Metal-Organic Framework Mg 2( m-dobdc). CrystEngComm 2022; 24:7292-7297. [PMID: 36776537 PMCID: PMC9910849 DOI: 10.1039/d2ce00739h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metal-organic frameworks bearing coordinatively unsaturated Mg(II) sites are promising materials for gas storage, chemical separations, and drug delivery due to their low molecular weights and lack of toxicity. However, there remains a limited number of such MOFs reported in the literature. Herein, we investigate the gas sorption properties of the understudied framework Mg2(m-dobdc) (dobdc4- = 4,6-dioxido-1,3-benzenedicarboxylate) synthesized under both solvothermal and mechanochemical conditions. Both materials are found to be permanently porous, as confirmed by 77 K N2 adsorption measurements. In particular, Mg2(m-dobdc) synthesized under mechanochemical conditions using exogenous organic base displays one of the highest capacities reported to date (6.14 mmol/g) for CO2 capture in a porous solid under simulated coal flue gas conditions (150 mbar, 40 °C). As such, mechanochemically synthesized Mg2(m-dobdc) represents a promising new framework for applications requiring high gas adsorption capacities in a porous solid.
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Affiliation(s)
- Elena Y. Chen
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14850, United States
| | - Ruth M. Mandel
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14850, United States
| | - Phillip J. Milner
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14850, United States
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18
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Allendorf MD, Stavila V, Snider JL, Witman M, Bowden ME, Brooks K, Tran BL, Autrey T. Challenges to developing materials for the transport and storage of hydrogen. Nat Chem 2022; 14:1214-1223. [DOI: 10.1038/s41557-022-01056-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 09/02/2022] [Indexed: 11/09/2022]
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19
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Chiu NC, Loughran RP, Gładysiak A, Vismara R, Park AHA, Stylianou KC. Wet flue gas CO 2 capture and utilization using one-dimensional metal-organic chains. NANOSCALE 2022; 14:14962-14969. [PMID: 36200609 DOI: 10.1039/d2nr04156a] [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
Herein, we describe the use of an ultramicroporous metal-organic framework (MOF) with a composition of [Ni3(pzdc)2(ade)2(H2O)1.5]·(H2O)1.3 (pzdc: 3,5-pyrazole dicarboxylic acid; ade: adenine), for the selective capture of carbon dioxide (CO2) from wet flue gas followed by its conversion to value-added products. This MOF is comprised of one-dimensional Ni(II)-pyrazole dicarboxylate-adenine chains; through pi-pi stacking and H-bonding interactions, these one-dimensional chains stack into a three-dimensional supramolecular structure with a one-dimensional pore network. Upon heating, our MOF undergoes a color change from light blue to lavender, indicating a change in the coordination geometry of Ni(II). Variable temperature ultraviolet-visible (UV/vis) spectroscopy data revealed a blue shift of the d-d transitions, suggesting a change in the Ni-coordination geometry from octahedral to a mixture of square planar and square pyramidal. The removal of the water molecules coordinated to Ni(II) leads to the generation of a MOF with open Ni(II) sites. Nitrogen isotherms collected at 77 K and 1 bar revealed that this MOF is microporous with a pore volume of 0.130 cm3 g-1. Carbon dioxide isotherms show a step in the uptake at low pressure, after which the CO2 uptake is saturated. The step in the CO2 uptake is likely attributable to the rearrangement of the three-dimensional supramolecular structure to accommodate CO2 within its pores. The affinity of this MOF for CO2 is 35.5 kJ mol-1 at low loadings, and it increases to 41.9 kJ mol-1 at high loadings. While our MOF is porous to CO2 and water (H2O) at 298 K, it is not porous to N2, and the CO2/N2 selectivity increases from 28.5 to 31.5 as a function of pressure. Breakthrough experiments reveal that this MOF can capture CO2 from dry and wet flue gas with uptake capacities of 1.48 ± 0.01 and 1.14 ± 0.06 mmol g-1, respectively. The MOF can be regenerated and reused at least three times, demonstrating consistent CO2 uptake capacities. Upon understanding the sorption behavior of this MOF, catalysis experiments show that the MOF is catalytically active in the fixation of CO2 into an epoxide ring for the formation of a cyclic carbonate. The turnover frequency for this reaction is 21.95 ± 0.03 h-1. The MOF showed no catalytic deterioration after two cycles and maintained comparable catalytic activity when dry and wet CO2/N2 mixtures were used. This highlights that both N2 and H2O do not dramatically affect the catalytic activity of our MOF toward CO2 fixation.
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Affiliation(s)
- Nan Chieh Chiu
- Materials Discovery Laboratory (MaD Lab), Department of Chemistry, Oregon State University, Corvallis, Oregon, USA.
| | - Ryan P Loughran
- Materials Discovery Laboratory (MaD Lab), Department of Chemistry, Oregon State University, Corvallis, Oregon, USA.
| | - Andrzej Gładysiak
- Department of Earth and Environmental Engineering, Department of Chemical Engineering, Lenfest Center for Sustainable Energy, Columbia University, New York, USA
| | - Rebecca Vismara
- Departamento de Química Inorgánica, Universidad de Granada, 18071 Granada, Spain
| | - Ah-Hyung Alissa Park
- Department of Earth and Environmental Engineering, Department of Chemical Engineering, Lenfest Center for Sustainable Energy, Columbia University, New York, USA
| | - Kyriakos C Stylianou
- Materials Discovery Laboratory (MaD Lab), Department of Chemistry, Oregon State University, Corvallis, Oregon, USA.
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20
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Kwon H, Jiang DE. Tuning Metal-Dihydrogen Interaction in Metal-Organic Frameworks for Hydrogen Storage. J Phys Chem Lett 2022; 13:9129-9133. [PMID: 36162809 DOI: 10.1021/acs.jpclett.2c02628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Inspired by a recently reported metal-organic framework (MOF), V2Cl2.8(btdd) [H2btdd = bis(1H-1,2,3-triazolo[4,5-b],[4',5'-i])dibenzo[1,4]dioxin], that shows a greatly improved H2 adsorption enthalpy, we employ density functional theory to probe how the number of d electrons and the mixed valences influence the M-H2 interaction inside the M2Clx(btdd) MOFs. We find a cliff in the H2 adsorption energy: the interaction strength remains strong from Sc to V and then falls sharply at Cr. Our results confirm V2Cl2.8(btdd) as one of the best performing hydrogen adsorbents and predict that Ti2Cl2.8(btdd) is equally promising while Sc2Cl2(btdd) and Ti2Cl2(btdd) may be even better. Our analysis indicates that an empty dx2-y2 orbital is the key to the much stronger binding of H2 at the open M(II) site (M = Sc, Ti, or V), whereas a partially filled dx2-y2 orbital in Cr(II) and later M(II) greatly weakens H2 binding. Our findings will be useful in designing MOFs to enhance H2 adsorption.
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Affiliation(s)
- Hyuna Kwon
- Department of Chemical and Environmental Engineering, University of California, Riverside, California 92521, United States
| | - De-En Jiang
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States
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21
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Mow R, Metzroth LJT, Dzara MJ, Russell-Parks GA, Johnson JC, Vardon DR, Pylypenko S, Vyas S, Gennett T, Braunecker WA. Phototriggered Desorption of Hydrogen, Ethylene, and Carbon Monoxide from a Cu(I)-Modified Covalent Organic Framework. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2022; 126:14801-14812. [PMID: 36110496 PMCID: PMC9465684 DOI: 10.1021/acs.jpcc.2c03194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 08/12/2022] [Indexed: 06/15/2023]
Abstract
Materials that are capable of adsorbing and desorbing gases near ambient conditions are highly sought after for many applications in gas storage and separations. While the physisorption of typical gases to high surface area covalent organic frameworks (COFs) occurs through relatively weak intermolecular forces, the tunability of framework materials makes them promising candidates for tailoring gas sorption enthalpies. The incorporation of open Cu(I) sites into framework materials is a proven strategy to increase gas uptake closer to ambient conditions for gases that are capable of π-back-bonding with Cu. Here, we report the synthesis of a Cu(I)-loaded COF with subnanometer pores and a three-dimensional network morphology, namely Cu(I)-COF-301. This study focused on the sorption mechanisms of hydrogen, ethylene, and carbon monoxide with this material under ultrahigh vacuum using temperature-programmed desorption and Kissinger analyses of variable ramp rate measurements. All three gases desorb near or above room temperature under these conditions, with activation energies of desorption (E des) calculated as approximately 29, 57, and 68 kJ/mol, for hydrogen, ethylene, and carbon monoxide, respectively. Despite these strong Cu(I)-gas interactions, this work demonstrated the ability to desorb each gas on-demand below its normal desorption temperature upon irradiation with ultraviolet (UV) light. While thermal imaging experiments indicate that bulk photothermal heating of the COF accounts for some of the photodriven desorption, density functional theory calculations reveal that binding enthalpies are systematically lowered in the COF-hydrogen matrix excited state initiated by UV irradiation, further contributing to gas desorption. This work represents a step toward the development of more practical ambient temperature storage and efficient regeneration of sorbents for applications with hydrogen and π-accepting gases through the use of external photostimuli.
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Affiliation(s)
- Rachel
E. Mow
- Materials
Science Program, Colorado School of Mines, Golden, Colorado 80401, United States
- Department
of Chemistry, Colorado School of Mines, Golden, Colorado 80401, United States
- National
Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Lucy J. T. Metzroth
- Materials
Science Program, Colorado School of Mines, Golden, Colorado 80401, United States
- National
Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Michael J. Dzara
- Department
of Chemistry, Colorado School of Mines, Golden, Colorado 80401, United States
| | - Glory A. Russell-Parks
- Department
of Chemistry, Colorado School of Mines, Golden, Colorado 80401, United States
- National
Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Justin C. Johnson
- National
Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Derek R. Vardon
- National
Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Svitlana Pylypenko
- Materials
Science Program, Colorado School of Mines, Golden, Colorado 80401, United States
- Department
of Chemistry, Colorado School of Mines, Golden, Colorado 80401, United States
| | - Shubham Vyas
- Materials
Science Program, Colorado School of Mines, Golden, Colorado 80401, United States
- Department
of Chemistry, Colorado School of Mines, Golden, Colorado 80401, United States
| | - Thomas Gennett
- Materials
Science Program, Colorado School of Mines, Golden, Colorado 80401, United States
- Department
of Chemistry, Colorado School of Mines, Golden, Colorado 80401, United States
- National
Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Wade A. Braunecker
- Department
of Chemistry, Colorado School of Mines, Golden, Colorado 80401, United States
- National
Renewable Energy Laboratory, Golden, Colorado 80401, United States
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22
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Jornet-Mollá V, Martín-Mezquita C, Giménez-Saiz C, Romero FM. Zinc(II) picolinate-based coordination polymers as luminescent sensors of Fe3+ ions and nitroaromatic compounds. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120993] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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23
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Ozbek MO, Ipek B. A Theoretical Investigation of Cu+, Ni2+ and Co2+-exchanged Zeolites for Hydrogen Storage. Chemphyschem 2022; 23:e202200272. [PMID: 35785512 DOI: 10.1002/cphc.202200272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 07/03/2022] [Indexed: 11/06/2022]
Abstract
This study investigates the H 2 adsorption on Cu + , Ni 2+ and Co 2+ -exchanged SSZ-13 (CHA) and SSZ-39 (AEI) using periodic DFT computations. Most stable Cu + position was found to be the 6-membered-ring window for both zeolites. Similarly, for investigated Ni 2+ and Co 2+ loadings on 6-membered-ring windows, the third nearest neighbor Al positions, i.e., Al-O-Si-O-Si-O-Al coordination, was found to be the most stable position. H 2 adsorption was investigated for all the Cu + , Ni 2+ and Co 2+ centers. AEI and CHA resulted in similar H 2 -Cu interactions for the Al and B substituted structures. H 2 adsorption on Cu + located in the 8-membered-ring gave the highest adsorption energy for both frameworks. Replacing Al with B in the framework increased the electron back donation from Cu + (3d) orbitals to H 2 antibonding orbital (s H2 * ). The H 2 adsorption energies on the Ni 2+ and Co 2+ -exchanged zeolites were found to be between -15 and -44 kJ/mol. Higher energy values were observed on the AEI framework, especially when two Al atoms have the Al-O-Si-O-Al configuration. Lesser interaction of the d-orbitals in the case of the Co 2+ and Ni 2+ cations resulted in heat of H 2 adsorption close to optimum values required for H 2 storage on porous materials.
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Affiliation(s)
- M Olus Ozbek
- Gebze Technical University: Gebze Teknik Universitesi, Chemical Engineering Department, Cumhuriyet 2254 St. No.2, Gebze, 41400, Kocaeli, TURKEY
| | - Bahar Ipek
- Middle East Technical University: Orta Dogu Teknik Universitesi, Chemical and Biomolecular Engineering, Dumlupinar Bulv. No 1, Cankaya, 06800, Ankara, TURKEY
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24
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Chen T, Wang F, Cao S, Bai Y, Zheng S, Li W, Zhang S, Hu SX, Pang H. In Situ Synthesis of MOF-74 Family for High Areal Energy Density of Aqueous Nickel-Zinc Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2201779. [PMID: 35593656 DOI: 10.1002/adma.202201779] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 05/09/2022] [Indexed: 06/15/2023]
Abstract
Limited by single metal active sites and low electrical conductivity, designing nickel-based metal-organic framework (MOF) materials with high capacity and high energy density remains a challenge. Herein, a series of bi/multimetallic MOF-74 family materials in situ grown on carbon cloth (CC) by doping Mx+ ions in Ni-MOF-74 is fabricated: NiM-MOF@CC (M = Mn2+ , Co2+ , Cu2+ , Zn2+ , Al3+ , Fe3+ ), and NiCoM-MOF@CC (M = Mn2+ , Zn2+ , Al3+ , Fe3+ ). The type and ratio of doping metal ions can be adjusted while the original topology is preserved. Different metal ions are confirmed by X-ray absorption fine structure (XAFS). Furthermore, these Ni-based MOF electrodes are directly utilized as cathodes for aqueous nickel-zinc batteries (NZBs). Among all the as-prepared electrodes, NiCo-MOF@CC-3 (NCM@CC-3), with an optimized Co/Ni ratio of 1:1, exhibits the best electrical conductivity, which is according to the density functional theory (DFT) theoretical calculations. The NCM@CC-3//Zn@CC battery achieves a high specific capacity of 1.77 mAh cm-2 , a high areal energy density of 2.97 mWh cm-2 , and high cycling stability of 83% capacity retention rate after 6000 cycles. The synthetic strategy based on the coordination effect of metal ions and the concept of binder-free electrodes provide a new direction for the synthesis of high-performance materials in the energy-storage field.
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Affiliation(s)
- Tingting Chen
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225009, P. R. China
| | - Fanfan Wang
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Shuai Cao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225009, P. R. China
| | - Yang Bai
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225009, P. R. China
- State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, Jiangsu, 210023, P. R. China
| | - Shasha Zheng
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225009, P. R. China
| | - Wenting Li
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225009, P. R. China
| | - Songtao Zhang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225009, P. R. China
| | - Shu-Xian Hu
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Huan Pang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225009, P. R. China
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25
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Wang K, Li Y, Xie LH, Li X, Li JR. Construction and application of base-stable MOFs: a critical review. Chem Soc Rev 2022; 51:6417-6441. [PMID: 35702993 DOI: 10.1039/d1cs00891a] [Citation(s) in RCA: 68] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Metal-organic frameworks (MOFs) are a new class of porous crystalline materials constructed from organic ligands and metal ions/clusters. Owing to their unique advantages, they have attracted more and more attention in recent years and numerous studies have revealed their great potential in various applications. Many important applications of MOFs inevitably involve harsh alkaline operational environments. To achieve high performance and long cycling life in these applications, high stability of MOFs against bases is necessary. Therefore, the construction of base-stable MOFs has become a critical research direction in the MOF field. This review gives a historic summary of the development of base-stable MOFs in the last few years. The key factors that can determine the robustness of MOFs under basic conditions are analyzed. We also demonstrate the exciting achievements that have been made by utilizing base-stable MOFs in different applications. In the end, we discuss major challenges for the further development of base-stable MOFs. Some possible methods to address these problems are presented.
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Affiliation(s)
- Kecheng Wang
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Environmental Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, P. R. China.
| | - Yaping Li
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Environmental Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, P. R. China. .,School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, P. R. China
| | - Lin-Hua Xie
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Environmental Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, P. R. China.
| | - Xiangyu Li
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Environmental Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, P. R. China.
| | - Jian-Rong Li
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Environmental Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, P. R. China.
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26
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27
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Zhao D, Wang X, Yue L, He Y, Chen B. Porous Metal-Organic Frameworks for Hydrogen Storage. Chem Commun (Camb) 2022; 58:11059-11078. [DOI: 10.1039/d2cc04036k] [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
The high gravimetric energy density and environmental benefit place hydrogen as a promising alternative to the widely used fossil fuel, which is however impeded by the lack of safe, energy-saving...
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28
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Chen Y, Du W, Dou B, Chen J, Hu L, Zeb A, Lin X. Metal-organic frameworks and their derivatives as electrode materials for Li-ion batteries: a mini review. CrystEngComm 2022. [DOI: 10.1039/d2ce00167e] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In recent decades, in order to obtain more excellent performance and wider application of rechargeable lithium-ion batteries (LIBs), researchers have been exploring potential electrode materials. MOFs possess attractive features, such...
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29
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Miyasaka H. Charge Manipulation in Metal–Organic Frameworks: Toward Designer Functional Molecular Materials. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210277] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Hitoshi Miyasaka
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
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30
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Decker GE, Bloch ED. Using Helium Pycnometry to Study the Apparent Densities of Metal-Organic Frameworks. ACS APPLIED MATERIALS & INTERFACES 2021; 13:51925-51932. [PMID: 34156822 DOI: 10.1021/acsami.1c07304] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
When investigating the gas storage capacities of metal-organic frameworks, volumetric values are often reported based on crystallographic densities. Although it is widely accepted that Langmuir and BET surface areas of a given MOF can vary depending on the exact synthetic conditions used to prepare the materials, it is rare that deviations in density from the optimal crystallographic density are considered. The actual (apparent) densities of these materials are highly variable depending on the presence of defects, impurities, or multiple phases that arise during synthesis. The apparent density of specific samples, which represent an experimentally determined crystallographic density, can be measured with helium pycnometry where the skeletal density measured via pycnometry is easily converted to an apparent density. In the work reported here, apparent density was measured for 46 samples across a series of different structure types where experimentally measured density was consistently lower than crystallographic density, up to 30% in some cases. Subsequently, use of this technique allows for quantification of densities for those materials whose structures have not been crystallographically determined.
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Affiliation(s)
- Gerald E Decker
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716 United States
| | - Eric D Bloch
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716 United States
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31
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Wang TC, Wright AM, Hoover WJ, Stoffel KJ, Richardson RK, Rodriguez S, Flores RC, Siegfried JP, Vermeulen NA, Fuller PE, Weston MH, Farha OK, Morris W. Surviving Under Pressure: The Role of Solvent, Crystal Size, and Morphology During Pelletization of Metal-Organic Frameworks. ACS APPLIED MATERIALS & INTERFACES 2021; 13:52106-52112. [PMID: 34383458 DOI: 10.1021/acsami.1c09619] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
As metal-organic frameworks (MOFs) gain traction for applications, such as hydrogen storage, it is essential to form the as-synthesized powder materials into shaped bodies with high packing densities to maximize their volumetric performance. Mechanical compaction, which involves compressing the materials at high pressure, has been reported to yield high monolith density but often results in a significant loss in accessible porosity. Herein, we sought to systematically control (1) crystal size, (2) solvation, and (3) compacting pressure in the pelletization process to achieve high packing density without compromising the porosity that makes MOFs functional. It was determined that solvation is the most critical factor among the three factors examined. Solvation that exceeds the pore volume prevents the framework from collapsing, allowing for porosity to be maintained through pelletization. Higher pelletization pressure results in higher packing density, with extensive loss of porosity being observed at a higher pressure if the solvation is below the pore volume. Lastly, we observed that the morphology and size of the MOF particles result in variation in the highest achievable packing efficiency, but these numbers (75%) are still greater than many existing techniques used to form MOFs. We concluded that the application of pressure through pelletization is a suitable and widely applicable technique for forming high-density MOF-monoliths.
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Affiliation(s)
- Timothy C Wang
- NuMat Technologies, 8025 Lamon Avenue, Skokie, Illinois 60077, United States
| | - Ashley M Wright
- NuMat Technologies, 8025 Lamon Avenue, Skokie, Illinois 60077, United States
| | - William J Hoover
- NuMat Technologies, 8025 Lamon Avenue, Skokie, Illinois 60077, United States
| | - Kevin J Stoffel
- NuMat Technologies, 8025 Lamon Avenue, Skokie, Illinois 60077, United States
| | | | - Stephanie Rodriguez
- NuMat Technologies, 8025 Lamon Avenue, Skokie, Illinois 60077, United States
| | - Roberto C Flores
- NuMat Technologies, 8025 Lamon Avenue, Skokie, Illinois 60077, United States
| | - John P Siegfried
- NuMat Technologies, 8025 Lamon Avenue, Skokie, Illinois 60077, United States
| | | | - Patrick E Fuller
- NuMat Technologies, 8025 Lamon Avenue, Skokie, Illinois 60077, United States
| | - Mitchell H Weston
- NuMat Technologies, 8025 Lamon Avenue, Skokie, Illinois 60077, United States
| | - Omar K Farha
- NuMat Technologies, 8025 Lamon Avenue, Skokie, Illinois 60077, United States
- Department of Chemistry and International Institute for Nanotechnology and Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - William Morris
- NuMat Technologies, 8025 Lamon Avenue, Skokie, Illinois 60077, United States
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32
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Wu F, Li L, Tan Y, El-Sayed ESM, Yuan D. The competitive and synergistic effect between adsorption enthalpy and capacity in D2/H2 separation of M2(m-dobdc) frameworks. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.02.063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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33
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Barnett BR, Evans HA, Su GM, Jiang HZH, Chakraborty R, Banyeretse D, Hartman TJ, Martinez MB, Trump BA, Tarver JD, Dods MN, Funke LM, Börgel J, Reimer JA, Drisdell WS, Hurst KE, Gennett T, FitzGerald SA, Brown CM, Head-Gordon M, Long JR. Observation of an Intermediate to H 2 Binding in a Metal-Organic Framework. J Am Chem Soc 2021; 143:14884-14894. [PMID: 34463495 DOI: 10.1021/jacs.1c07223] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Coordinatively unsaturated metal sites within certain zeolites and metal-organic frameworks can strongly adsorb a wide array of substrates. While many classical examples involve electron-poor metal cations that interact with adsorbates largely through physical interactions, unsaturated electron-rich metal centers housed within porous frameworks can often chemisorb guests amenable to redox activity or covalent bond formation. Despite the promise that materials bearing such sites hold in addressing myriad challenges in gas separations and storage, very few studies have directly interrogated mechanisms of chemisorption at open metal sites within porous frameworks. Here, we show that nondissociative chemisorption of H2 at the trigonal pyramidal Cu+ sites in the metal-organic framework CuI-MFU-4l occurs via the intermediacy of a metastable physisorbed precursor species. In situ powder neutron diffraction experiments enable crystallographic characterization of this intermediate, the first time that this has been accomplished for any material. Evidence for a precursor intermediate is also afforded from temperature-programmed desorption and density functional theory calculations. The activation barrier separating the precursor species from the chemisorbed state is shown to correlate with a change in the Cu+ coordination environment that enhances π-backbonding with H2. Ultimately, these findings demonstrate that adsorption at framework metal sites does not always follow a concerted pathway and underscore the importance of probing kinetics in the design of next-generation adsorbents.
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Affiliation(s)
- Brandon R Barnett
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States.,Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Hayden A Evans
- Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Gregory M Su
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Henry Z H Jiang
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States.,Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Romit Chakraborty
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States.,Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Didier Banyeretse
- Department of Physics, Oberlin College, Oberlin, Ohio 44074, United States
| | - Tyler J Hartman
- Department of Physics, Oberlin College, Oberlin, Ohio 44074, United States
| | - Madison B Martinez
- Chemistry & Nanoscience Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Benjamin A Trump
- Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Jacob D Tarver
- Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Matthew N Dods
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California 94720, United States
| | - Lena M Funke
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California 94720, United States
| | - Jonas Börgel
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
| | - Jeffrey A Reimer
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California 94720, United States
| | - Walter S Drisdell
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Katherine E Hurst
- Chemistry & Nanoscience Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Thomas Gennett
- Chemistry & Nanoscience Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States.,Department of Chemistry, Colorado School of Mines, Golden, Colorado 80401, United States
| | | | - Craig M Brown
- Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States.,Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Martin Head-Gordon
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States.,Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Jeffrey R Long
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States.,Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, California 94720, United States
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34
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Wang Z, Li Z, Ng M, Milner PJ. Rapid mechanochemical synthesis of metal-organic frameworks using exogenous organic base. Dalton Trans 2021; 49:16238-16244. [PMID: 32374307 DOI: 10.1039/d0dt01240h] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Metal-organic frameworks (MOFs) bearing coordinatively unsaturated metal centers, exemplified by the MOF-74 family of frameworks, are promising for applications ranging from gas separations and storage to Lewis acid catalysis. However, the scalable synthesis of MOF-74 analogues remains a significant challenge. Recently, mechanochemistry has emerged as a sustainable strategy for the preparation of MOFs in the solid state with minimal solvent waste. Mechanochemical methods typically rely on metal salts bearing basic anions to deprotonate the conjugate acid of the organic linker and a small amount of organic solvent or water to facilitate liquid assisted grinding. Here, we demonstrate that the liquid exogenous organic base Hünig's base (N,N-diisopropylethylamine) can fulfill both roles, enabling the mechanochemical synthesis of M2(dobdc) analogues (M = Mg, Mn, Co, Ni, Cu, Zn; dobdc4- = 2,5-dioxidobenzene-1,4-dicarboxylate) using metal nitrate salts in only 5 minutes at room temperature. Importantly, we demonstrate that this straightforward method can be generalized to prepare the isomeric framework Mg2(m-dobdc) (m-dobdc4- = 2,4-dioxidobenzene-1,5-dicarboxylate) and the expanded framework Mg2(dobpdc) (dobpdc4- = 4,4'-dioxidobiphenyl-3,3'-dicarboxylate) under solvent-free conditions for the first time. The MOFs prepared using this method possess high crystallinities and surface areas, with the Mg2(m-dobdc) prepared herein representing the first reported permanently porous variant of this framework. This new sustainable mechanochemical synthesis of MOF-74 analogues should enable their preparation on a large scale for industrial applications.
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Affiliation(s)
- Zihao Wang
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA.
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35
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Jornet-Mollá V, Dreessen C, Romero FM. Robust Lanthanoid Picolinate-Based Coordination Polymers for Luminescence and Sensing Applications. Inorg Chem 2021; 60:10572-10584. [PMID: 34229428 PMCID: PMC8454995 DOI: 10.1021/acs.inorgchem.1c01229] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Picolinate-based segmented dianionic ligands L12- (5-((4-carboxyphenyl)ethynyl)picolinate) and L22- (5,5'-(ethyne-1,2-diyl)dipicolinate) have been used in the synthesis of the highly robust and luminescent europium(III) coordination polymers [(CH3)2NH2][Eu(H2O)2(L1)2] (1) and [(CH3)2NH2][Eu(L2)2]·H2O·CH3COOH (2). Both 1 and 2 exhibit high selectivity for detection of nitroaromatic compounds since they act as quenchers of the Eu3+ emission. Stern-Volmer plots, using nitrobenzene as a quencher, yielded values of KSV = 150 M-1 and 160 M-1 for 1 and 2, respectively. Luminescence studies in the presence of different metal ions indicate a high selectivity for Fe3+ detection, with KSV values of 471 M-1 and 706 M-1 for 1 and 2, respectively. Both 1 and 2 possess extremely robust extended structures, leading to emissive properties that are stable in a wide pH range.
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Affiliation(s)
- Verónica Jornet-Mollá
- Instituto de Ciencia Molecular, Universitat de València, P.O. Box 22085, 46071 València, Spain
| | - Chris Dreessen
- Instituto de Ciencia Molecular, Universitat de València, P.O. Box 22085, 46071 València, Spain
| | - Francisco M Romero
- Instituto de Ciencia Molecular, Universitat de València, P.O. Box 22085, 46071 València, Spain
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36
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Yan R, Ma T, Cheng M, Tao X, Yang Z, Ran F, Li S, Yin B, Cheng C, Yang W. Metal-Organic-Framework-Derived Nanostructures as Multifaceted Electrodes in Metal-Sulfur Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2008784. [PMID: 34031929 DOI: 10.1002/adma.202008784] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 02/10/2021] [Indexed: 02/05/2023]
Abstract
Metal-sulfur batteries (MSBs) are considered up-and-coming future-generation energy storage systems because of their prominent theoretical energy density. However, the practical applications of MSBs are still hampered by several critical challenges, i.e., the shuttle effects, sluggish redox kinetics, and low conductivity of sulfur species. Recently, benefiting from the high surface area, regulated networks, molecular/atomic-level reactive sites, the metal-organic frameworks (MOFs)-derived nanostructures have emerged as efficient and durable multifaceted electrodes in MSBs. Herein, a timely review is presented on recent advancements in designing MOF-derived electrodes, including fabricating strategies, composition management, topography control, and electrochemical performance assessment. Particularly, the inherent charge transfer, intrinsic polysulfide immobilization, and catalytic conversion on designing and engineering of MOF nanostructures for efficient MSBs are systematically discussed. In the end, the essence of how MOFs' nanostructures influence their electrochemical properties in MSBs and conclude the future tendencies regarding the construction of MOF-derived electrodes in MSBs is exposed. It is believed that this progress review will provide significant experimental/theoretical guidance in designing and understanding the MOF-derived nanostructures as multifaceted electrodes, thus offering promising orientations for the future development of fast-kinetic and robust MSBs in broad energy fields.
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Affiliation(s)
- Rui Yan
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Department of Ultrasound West China Hospital Sichuan University Chengdu 610065 China
| | - Tian Ma
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Department of Ultrasound West China Hospital Sichuan University Chengdu 610065 China
| | - Menghao Cheng
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Department of Ultrasound West China Hospital Sichuan University Chengdu 610065 China
| | - Xuefeng Tao
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Department of Ultrasound West China Hospital Sichuan University Chengdu 610065 China
| | - Zhao Yang
- State Key Laboratory of Advanced Processing and Recycling of Non‐ferrous Metals Lanzhou University of Technology Lanzhou Gansu 730050 P. R. China
| | - Fen Ran
- State Key Laboratory of Advanced Processing and Recycling of Non‐ferrous Metals Lanzhou University of Technology Lanzhou Gansu 730050 P. R. China
| | - Shuang Li
- Functional Materials Department of Chemistry Technische Universität Berlin Hardenbergstraße 40 10623 Berlin Germany
| | - Bo Yin
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Department of Ultrasound West China Hospital Sichuan University Chengdu 610065 China
| | - Chong Cheng
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Department of Ultrasound West China Hospital Sichuan University Chengdu 610065 China
- Department of Chemistry and Biochemistry Freie Universität Berlin Takustrasse 3 14195 Berlin Germany
| | - Wei Yang
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Department of Ultrasound West China Hospital Sichuan University Chengdu 610065 China
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37
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Vornholt SM, Elliott CG, Rice CM, Russell SE, Kerr PJ, Rainer DN, Mazur M, Warren MR, Wheatley PS, Morris RE. Controlled Synthesis of Large Single Crystals of Metal-Organic Framework CPO-27-Ni Prepared by a Modulation Approach: In situ Single-Crystal X-ray Diffraction Studies. Chemistry 2021; 27:8537-8546. [PMID: 33783895 PMCID: PMC8251849 DOI: 10.1002/chem.202100528] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Indexed: 12/14/2022]
Abstract
The size of single crystals of the metal-organic framework CPO-27-Ni was incrementally increased through a series of modulated syntheses. A novel linker modulated synthesis using 2,5-dihydroxyterephthalic acid and the isomeric ligand 4,6-dihydroxyisophthalic acid yielded large single crystals of CPO-27-Ni (∼70 μm). All materials were shown to have high crystallinity and phase purity through powder X-ray diffraction, electron microscopy methods, thermogravimetry, and compositional analysis. For the first time single-crystal structure analyses were carried out on CPO-27-Ni. High BET surface areas and nitric oxide (NO) release efficiencies were recorded for all materials. Large single crystals of CPO-27-Ni showed a prolonged NO release and proved suitable for in situ single-crystal diffraction experiments to follow the NO adsorption. An efficient activation protocol was developed, leading to a dehydrated structure after just 4 h, which subsequently was NO-loaded, leading to a first NO loaded single-crystal structural model of CPO-27-Ni.
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Affiliation(s)
| | | | - Cameron M. Rice
- University of St AndrewsNorth HaughKY16 9STSt AndrewsUnited Kingdom
| | | | - Peter J. Kerr
- University of St AndrewsNorth HaughKY16 9STSt AndrewsUnited Kingdom
| | - Daniel N. Rainer
- University of St AndrewsNorth HaughKY16 9STSt AndrewsUnited Kingdom
| | - Michal Mazur
- Department of Physical and Macromolecular ChemistryFaculty of SciencesCharles UniversityHlavova 8128 43Prague 2Czech Republic
| | - Mark R. Warren
- Diamond Light SourceHarwell Science and Innovation CampusDidcotOX11 0DEUnited Kingdom
| | - Paul S. Wheatley
- University of St AndrewsNorth HaughKY16 9STSt AndrewsUnited Kingdom
| | - Russell E. Morris
- University of St AndrewsNorth HaughKY16 9STSt AndrewsUnited Kingdom
- Department of Physical and Macromolecular ChemistryFaculty of SciencesCharles UniversityHlavova 8128 43Prague 2Czech Republic
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38
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Li H, Yang Z, Lu S, Su L, Wang C, Huang J, Zhou J, Tang J, Huang M. Nano-porous bimetallic CuCo-MOF-74 with coordinatively unsaturated metal sites for peroxymonosulfate activation to eliminate organic pollutants: Performance and mechanism. CHEMOSPHERE 2021; 273:129643. [PMID: 33497983 DOI: 10.1016/j.chemosphere.2021.129643] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 01/03/2021] [Accepted: 01/09/2021] [Indexed: 06/12/2023]
Abstract
The importance of clean water resources for maintaining sustainable development of society is self-evident. In this study, bimetallic metal-organic framework (CuCo-MOF-74) was synthesized and characterized by XRD, FT-IR, SEM, TEM, BET, and XPS techniques. The structural analysis results revealed that CuCo-MOF-74 was nano-porous materials with coordinatively unsaturated metal sites. With the addition of PMS, Cu1Co1-MOF-74 exhibited high activity for methylene blue (MB) removal (100% degradation) within 30 min under low 50 mg/L catalyst dosage. The effects of catalyst dosage, PMS dosage, MB concentration, initial pH, and common anions were evaluated. Quenching reactions and EPR studies revealed the coexistence of sulfate radical (SO4•-), hydroxyl radical (·OH), and singlet oxygen (1O2), which was attributed to the potential in-situ recycling of cobalt and copper species (Co(III)→Co(II), Cu(II)→Cu(I))). Fukui index (f0) and dual descriptor (Δf) by Density functional theory (DFT) calculations were applied to predict the most reactive sites of MB. Meanwhile, the possible degradation pathway of MB was proposed with the help of oxidative intermediates identified by UPLC-MS.
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Affiliation(s)
- Huanxuan Li
- Hangzhou Dianzi University, College Materials & Environmental Engineering, Hangzhou, 310018, PR China.
| | - Zongxiang Yang
- Hangzhou Dianzi University, College Materials & Environmental Engineering, Hangzhou, 310018, PR China
| | - Shun Lu
- Hangzhou Dianzi University, College Materials & Environmental Engineering, Hangzhou, 310018, PR China
| | - Liya Su
- Hangzhou Dianzi University, College Materials & Environmental Engineering, Hangzhou, 310018, PR China
| | - Chunhui Wang
- Hangzhou Dianzi University, College Materials & Environmental Engineering, Hangzhou, 310018, PR China
| | - Jingang Huang
- Hangzhou Dianzi University, College Materials & Environmental Engineering, Hangzhou, 310018, PR China
| | - Jie Zhou
- Hangzhou Dianzi University, College Materials & Environmental Engineering, Hangzhou, 310018, PR China
| | - Junhong Tang
- Hangzhou Dianzi University, College Materials & Environmental Engineering, Hangzhou, 310018, PR China.
| | - Mingzhi Huang
- School of Environment, South China Normal University, Guangzhou, 510006, China
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39
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Sokolov AV, Vologzhanina AV, Barabanova ED, Stefanovich SY, Dorovatovskii PV, Taydakov IV, Alexandrov EV. Coordination Properties of Hydroxyisophthalic Acids: Topological Correlations, Synthesis, Structural Analysis, and Properties of New Complexes. Chemistry 2021; 27:9180-9192. [PMID: 33871132 DOI: 10.1002/chem.202100733] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Indexed: 11/11/2022]
Abstract
Hydroxyisophthalic acids are valuable polytopic ligands for the design of functional materials based on coordination polymers due to the variety of charges and coordination modes they possess. Herein, we describe the synthesis, thermal stability, nonlinear optical (NLO) and spectroscopic properties of five novel coordination compounds, [K2 L(H2 O)2 ], [MgL(H2 O)2 ] ⋅ 3H2 O, [CaL(H2 O)3 ], [SrL(H2 O)3 ] ⋅ H2 O, [BaL(H2 O)(H2 O)5 ], and one salt, (NH4 )2 L ⋅ 2H2 O, with 4,5,6-trihydroxyisophthalic acid (H2 L), which has not been tested in assembling crystalline coordination networks before. The peculiarities of the structural organization of the compounds were analyzed and compared with those for other hydroxyisophthalates. The coordination properties of hydroxyisophthalic acids were studied from the topological point of view, and a comparative topological analysis of coordination and H-bonded networks was performed. Structural correlations revealed in this study could be useful for the design of hydroxyisophthalate-based coordination networks, including porous metal-organic frameworks, proton conductors, and NLO materials.
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Affiliation(s)
- Andrey V Sokolov
- Institute of Experimental Medicine and Biotechnology, Samara State Medical University, Chapayevskaya St. 89, Samara, 443099, Russian Federation
| | - Anna V Vologzhanina
- X-ray Structural Research Laboratory, A. N. Nesmeyanov Institute of Organoelement Compounds RAS, Vavilova str. 28, Moscow 119991, Russian Federation
| | - Ekaterina D Barabanova
- Samara Center for Theoretical Material Science (SCTMS), Samara State Technical University, Molodogvardeyskaya St. 244, Samara, 443100, Russian Federation
| | - Sergey Yu Stefanovich
- Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1, GSP-1, Moscow, 119991, Russian Federation
| | - Pavel V Dorovatovskii
- National Research Centre "Kurchatov Institute", Acad. Kurchatov Sq. 1, Moscow, 123182, Russian Federation
| | - Ilya V Taydakov
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Leninskiy prospect 53, GSP-1, Moscow, 119991, Russian Federation.,G.V. Plekhanov Russian University of Economics, Stremyanny per. 36, Moscow, 117997, Russian Federation
| | - Eugeny V Alexandrov
- Samara Center for Theoretical Material Science (SCTMS), Samara State Technical University, Molodogvardeyskaya St. 244, Samara, 443100, Russian Federation.,Samara Branch of P.N. Lebedev Physical Institute, Russian Academy of Science, Novo-Sadovaya St. 221, Samara, 443011, Russian Federation
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40
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Veccham SP, Head-Gordon M. Assessment of Performance of Density Functionals for Predicting Potential Energy Curves in Hydrogen Storage Applications. J Phys Chem A 2021; 125:4245-4257. [PMID: 33951911 DOI: 10.1021/acs.jpca.1c01041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The availability of accurate computational tools for modeling and simulation is vital to accelerate the discovery of materials capable of storing hydrogen (H2) under given parameters of pressure swing and temperature. Previously, we compiled the H2Bind275 data set consisting of equilibrium geometries and assessed the performance of 55 density functionals over this data set (Veccham, S. P.; Head-Gordon, M. J. Chem. Theory Comput. 2020, 16, 4963-4982). As it is crucial for computational tools to accurately model the entire potential energy curve (PEC), in addition to the equilibrium geometry, we extended this data set with 389 new data points to include two compressed and three elongated geometries along 78 PECs for H2 binding, forming the H2Bind78 × 7 data set. By assessing the performance of 55 density functionals on this significantly larger and more comprehensive H2Bind78 × 7 data set, we identified the best performing density functionals for H2 binding applications: PBE0-DH, ωB97X-V, ωB97M-V, and DSD-PBEPBE-D3(BJ). The addition of Hartree-Fock exchange improves the performance of density functionals, albeit not uniformly throughout the PEC. We recommend the usage of ωB97X-V and ωB97M-V density functionals as they offer good performance for both geometries and energies. In addition, we also identified B97M-V and B97M-rV as the best semilocal density functionals for predicting H2 binding energy at its equilibrium geometry.
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Affiliation(s)
- Srimukh Prasad Veccham
- Department of Chemistry, University of California, Berkeley, California 94720, United States.,Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Martin Head-Gordon
- Department of Chemistry, University of California, Berkeley, California 94720, United States.,Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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41
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Allendorf MD, Stavila V, Witman M, Brozek CK, Hendon CH. What Lies beneath a Metal-Organic Framework Crystal Structure? New Design Principles from Unexpected Behaviors. J Am Chem Soc 2021; 143:6705-6723. [PMID: 33904302 DOI: 10.1021/jacs.0c10777] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The rational design principles established for metal-organic frameworks (MOFs) allow clear structure-property relationships, fueling expansive growth for energy storage and conversion, catalysis, and beyond. However, these design principles are based on the assumption of compositional and structural rigidity, as measured crystallographically. Such idealization of MOF structures overlooks subtle chemical aspects that can lead to departures from structure-based chemical intuition. In this Perspective, we identify unexpected behavior of MOFs through literature examples. Based on this analysis, we conclude that departures from ideality are not uncommon. Whereas linker topology and metal coordination geometry are useful starting points for understanding MOF properties, we anticipate that deviations from the idealized crystal representation will be necessary to explain important and unexpected behaviors. Although this realization reinforces the notion that MOFs are highly complex materials, it should also stimulate a broader reexamination of the literature to identify corollaries to existing design rules and reveal new structure-property relationships.
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Affiliation(s)
- Mark D Allendorf
- Chemistry, Combustion, and Materials Science Center, Sandia National Laboratories, Livermore, California 94551, United States
| | - Vitalie Stavila
- Chemistry, Combustion, and Materials Science Center, Sandia National Laboratories, Livermore, California 94551, United States
| | - Matthew Witman
- Chemistry, Combustion, and Materials Science Center, Sandia National Laboratories, Livermore, California 94551, United States
| | - Carl K Brozek
- Department of Chemistry and Biochemistry and Materials Science Institute, University of Oregon, Eugene, Oregon 97403, United States.,Oregon Center for Electrochemistry, University of Oregon, Eugene, Oregon 97403, United States
| | - Christopher H Hendon
- Department of Chemistry and Biochemistry and Materials Science Institute, University of Oregon, Eugene, Oregon 97403, United States
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42
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Jaramillo DE, Jiang HZH, Evans HA, Chakraborty R, Furukawa H, Brown CM, Head-Gordon M, Long JR. Ambient-Temperature Hydrogen Storage via Vanadium(II)-Dihydrogen Complexation in a Metal-Organic Framework. J Am Chem Soc 2021; 143:6248-6256. [PMID: 33852299 PMCID: PMC10951977 DOI: 10.1021/jacs.1c01883] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The widespread implementation of H2 as a fuel is currently hindered by the high pressures or cryogenic temperatures required to achieve reasonable storage densities. In contrast, the realization of materials that strongly and reversibly adsorb hydrogen at ambient temperatures and moderate pressures could transform the transportation sector and expand adoption of fuel cells in other applications. To date, however, no adsorbent has been identified that exhibits a binding enthalpy within the optimal range of -15 to -25 kJ/mol for ambient-temperature hydrogen storage. Here, we report the hydrogen adsorption properties of the metal-organic framework (MOF) V2Cl2.8(btdd) (H2btdd, bis(1H-1,2,3-triazolo[4,5-b],[4',5'-i])dibenzo[1,4]dioxin), which features exposed vanadium(II) sites capable of backbonding with weak π acids. Significantly, gas adsorption data reveal that this material binds H2 with an enthalpy of -21 kJ/mol. This binding energy enables usable hydrogen capacities that exceed that of compressed storage under the same operating conditions. The Kubas-type vanadium(II)-dihydrogen complexation is characterized by a combination of techniques. From powder neutron diffraction data, a V-D2(centroid) distance of 1.966(8) Å is obtained, the shortest yet reported for a MOF. Using in situ infrared spectroscopy, the H-H stretch was identified, and it displays a red shift of 242 cm-1. Electronic structure calculations show that a main contribution to bonding stems from the interaction between the vanadium dπ and H2 σ* orbital. Ultimately, the pursuit of MOFs containing high densities of weakly π-basic metal sites may enable storage capacities under ambient conditions that far surpass those accessible with compressed gas storage.
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Affiliation(s)
- David E Jaramillo
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Henry Z H Jiang
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Hayden A Evans
- Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Romit Chakraborty
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 United States
| | - Hiroyasu Furukawa
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Craig M Brown
- Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Martin Head-Gordon
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 United States
| | - Jeffrey R Long
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
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43
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Wang Z, Bilegsaikhan A, Jerozal RT, Pitt TA, Milner PJ. Evaluating the Robustness of Metal-Organic Frameworks for Synthetic Chemistry. ACS APPLIED MATERIALS & INTERFACES 2021; 13:17517-17531. [PMID: 33822586 PMCID: PMC8232555 DOI: 10.1021/acsami.1c01329] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Metal-organic frameworks (MOFs) are emerging as sustainable reagents and catalysts with promising applications in synthetic chemistry. Although the hydrothermal stabilities of MOFs have been well studied, their robustness toward various reagents, including acids, bases, nucleophiles, electrophiles, oxidants, and reductants, remains poorly characterized. As such, heterogeneous platforms for promising catalysts are generally identified on an ad hoc basis and have largely been limited to carboxylate frameworks to date. To address these limitations, here we systematically characterize the robustness of 17 representative carboxylate, salicylate, and azolate MOFs toward 30 conditions representing the scope of synthetic organic chemistry. Specifically, analysis of the full width at half-maximum of powder X-ray diffraction patterns, as well as infrared spectroscopy, 77 K N2 adsorption measurements, and scanning electron microscopy in select cases are employed to appraise framework degradation and dissolution under a range of representative conditions. Our studies demonstrate that azolate MOFs, such as Fe2(bdp)3 (bdp2- = 4,4'-(1,4-phenylene)bis(pyrazolate)), generally possess excellent chemical stabilities under myriad conditions. In addition, we find that carboxylate and salicylate frameworks possess complementary stabilities, with carboxylate MOFs possessing superior robustness toward acids, electrophiles, and oxidants, and salicylate MOFs demonstrating improved robustness toward bases, nucleophiles, and reductants. The guidelines provided herein should facilitate the rational design of robust frameworks for applications in synthetic chemistry and guide the development of new strategies for the postsynthetic modification of MOFs as well.
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Affiliation(s)
- Zihao Wang
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14850, United States
| | - Arvin Bilegsaikhan
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14850, United States
| | - Ronald T. Jerozal
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14850, United States
| | - Tristan A. Pitt
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14850, United States
| | - Phillip J. Milner
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14850, United States
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44
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Abstract
Hydrogen molecules exist in the form of two distinct isomers that can be interconverted by physical catalysis. These ortho and para forms have different thermodynamical properties. Over the last century, the catalysts developed to convert hydrogen from one form to another, in laboratories and industries, were magnetic and the interpretations relied on magnetic dipolar interactions. The variety concentration of a sample and the conversion rates induced by a catalytic action were mostly measured by thermal methods related to the diffusion of the o-p reaction heat. At the turning of the new century, the nature of the studied catalysts and the type of measures and motivations completely changed. Catalysts investigated now are non-magnetic and new spectroscopic measurements have been developed. After a fast survey of the past studies, the review details the spectroscopic methods, emphasizing their originalities, performances and refinements: how Infra-Red measurements characterize the catalytic sites and follow the conversion in real-time, Ultra-Violet irradiations explore the electronic nature of the reaction and hyper-frequencies driving the nuclear spins. The new catalysts, metallic or insulating, are detailed to display the operating electronic structure. New electromagnetic mechanisms, involving energy and momenta transfers, are discovered providing a classification frame for the newly observed reactions.
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45
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Zick ME, Lee JH, Gonzalez MI, Velasquez EO, Uliana AA, Kim J, Long JR, Milner PJ. Fluoroarene Separations in Metal-Organic Frameworks with Two Proximal Mg 2+ Coordination Sites. J Am Chem Soc 2021; 143:1948-1958. [PMID: 33492140 DOI: 10.1021/jacs.0c11530] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Fluoroarenes are widely used in medicinal, agricultural, and materials chemistry, and yet their production remains a critical challenge in organic synthesis. Indeed, the nearly identical physical properties of these vital building blocks hinders their purification by traditional methods, such as flash chromatography or distillation. As a result, the Balz-Schiemann reaction is currently employed to prepare fluoroarenes instead of more atom-economical C-H fluorination reactions, which produce inseparable mixtures of regioisomers. Herein, we propose an alternative solution to this problem: the purification of mixtures of fluoroarenes using metal-organic frameworks (MOFs). Specifically, we demonstrate that controlling the interaction of fluoroarenes with adjacent coordinatively unsaturated Mg2+ centers within a MOF enables the separation of fluoroarene mixtures with unparalleled selectivities. Liquid-phase multicomponent equilibrium adsorption data and breakthrough measurements coupled with van der Waals-corrected density functional theory calculations reveal that the materials Mg2(dobdc) (dobdc4- = 2,5-dioxidobenzene-1,4-dicarboxylate) and Mg2(m-dobdc) (m-dobdc4- = 2,4-dioxidobenzene-1,5-dicarboxylate) are capable of separating the difluorobenzene isomers from one another. Additionally, these frameworks facilitate the separations of fluoroanisoles, fluorotoluenes, and fluorochlorobenzenes. In addition to enabling currently unfeasible separations for the production of fluoroarenes, our results suggest that carefully controlling the interaction of isomers with not one but two strong binding sites within a MOF provides a general strategy for achieving challenging liquid-phase separations.
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Affiliation(s)
- Mary E Zick
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14850, United States
| | - Jung-Hoon Lee
- Computational Science Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
| | - Miguel I Gonzalez
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Ever O Velasquez
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Adam A Uliana
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Jaehwan Kim
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14850, United States
| | - Jeffrey R Long
- Department of Chemistry, University of California, Berkeley, California 94720, United States.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States.,Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Phillip J Milner
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14850, United States
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46
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Lee B, Park J. Effect of Functional Groups on the
I
2
Sorption Kinetics of Isostructural
Metal–Organic
Frameworks. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12201] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Byeongchan Lee
- Department of Emerging Materials Science Daegu Gyeongbuk Institute of Science and Technology (DGIST) Daegu 42988 South Korea
| | - Jinhee Park
- Department of Emerging Materials Science Daegu Gyeongbuk Institute of Science and Technology (DGIST) Daegu 42988 South Korea
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47
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Kim H, Hong CS. MOF-74-type frameworks: tunable pore environment and functionality through metal and ligand modification. CrystEngComm 2021. [DOI: 10.1039/d0ce01870h] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This highlight demonstrates a comprehensive overview of MOF-74-type frameworks in terms of synthetic approaches and pre- or post-synthetic modification approaches.
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Affiliation(s)
- Hyojin Kim
- Department of Chemistry
- Korea University
- Seoul 02841
- Republic of Korea
| | - Chang Seop Hong
- Department of Chemistry
- Korea University
- Seoul 02841
- Republic of Korea
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48
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Hadjiivanov KI, Panayotov DA, Mihaylov MY, Ivanova EZ, Chakarova KK, Andonova SM, Drenchev NL. Power of Infrared and Raman Spectroscopies to Characterize Metal-Organic Frameworks and Investigate Their Interaction with Guest Molecules. Chem Rev 2020; 121:1286-1424. [DOI: 10.1021/acs.chemrev.0c00487] [Citation(s) in RCA: 150] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | - Dimitar A. Panayotov
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
| | - Mihail Y. Mihaylov
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
| | - Elena Z. Ivanova
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
| | - Kristina K. Chakarova
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
| | - Stanislava M. Andonova
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
| | - Nikola L. Drenchev
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
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49
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Romero-Muñiz C, Gavira-Vallejo JM, Merkling PJ, Calero S. Impact of Small Adsorbates in the Vibrational Spectra of Mg- and Zn-MOF-74 Revealed by First-Principles Calculations. ACS APPLIED MATERIALS & INTERFACES 2020; 12:54980-54990. [PMID: 33225687 DOI: 10.1021/acsami.0c16629] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this work, we analyze the influence of small adsorbates on the vibrational spectra of Mg- and Zn-metal-organic framework MOF-74 by means of first-principles calculations. In particular, we consider the adsorption of four representative species of different interaction strengths: Ar, CO2, H2O, and NH3. Apart from a comprehensive characterization of the structural and energetic aspects of empty and loaded MOFs, we use a fully quantum ab initio approach to evaluate the Raman and IR activities of the normal modes, leading to the construction of the whole vibrational spectra. Under this approach, not only are we able to proceed with the complete assignment of the spectra in terms of the usual internal coordinates but also we can discern the most relevant vibrational fingerprints of the adsorbates and their impact on the whole MOF spectra. On the one hand, some of the typical vibrational modes of the small molecules are slightly shifted but still visible when adsorbed on the MOFs, especially those appearing at high wavenumbers where the empty MOFs lack IR/Raman signals. On the other hand, some bands arising from the organic ligands are affected by the presence of the absorbates, displaying non-negligible frequency shifts, in agreement with recent experiments. We find a strong correlation between all of these frequency shifts and the interaction strength of the adsorbate with the hosting framework. The findings presented in this work expand the capabilities of vibrational spectroscopy techniques to analyze porous materials and can be useful for the design of sensors and new devices based on MOF technology.
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Affiliation(s)
- Carlos Romero-Muñiz
- Department of Physical, Chemical and Natural Systems, Universidad Pablo de Olavide, Ctra. Utrera Km. 1, E-41013 Seville, Spain
| | - José María Gavira-Vallejo
- Departamento de Ciencias y Técnicas Fisicoquímicas, Facultad de Ciencias, Universidad Nacional de Educación a Distancia (UNED), Paseo de la Senda del Rey 9, E-28040 Madrid, Spain
| | - Patrick J Merkling
- Department of Physical, Chemical and Natural Systems, Universidad Pablo de Olavide, Ctra. Utrera Km. 1, E-41013 Seville, Spain
| | - Sofía Calero
- Department of Physical, Chemical and Natural Systems, Universidad Pablo de Olavide, Ctra. Utrera Km. 1, E-41013 Seville, Spain
- Materials Simulation & Modelling, Department of Applied Physics, Eindhoven University of Technology, 5600MB Eindhoven, The Netherlands
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50
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Peedikakkal AMP, Aljundi IH. Mixed-Metal Cu-BTC Metal-Organic Frameworks as a Strong Adsorbent for Molecular Hydrogen at Low Temperatures. ACS OMEGA 2020; 5:28493-28499. [PMID: 33195899 PMCID: PMC7658931 DOI: 10.1021/acsomega.0c02810] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 10/09/2020] [Indexed: 06/11/2023]
Abstract
The advancement of hydrogen and fuel cell technologies hinges on the development of hydrogen storage methods. Metal-organic frameworks (MOFs) are one of the most favorable materials for hydrogen storage. In this study, we synthesized a series of isostructural mixed-metal metal-organic frameworks (MM-MOFs) of 1,3,5-benzenetricarboxylate (BTC), M-Cu-BTC, where M = Zn2+, Ni2+, Co2+, and Fe2+ using the post-synthetic exchange (PSE) method with metal ions. The powder X-ray diffraction patterns of MM-MOFs were similar with those of single-metal Cu-BTC. Scanning electron microscopy indicates the absence of amorphous phases. Inductively coupled plasma mass spectroscopy of the MM-MOFs shows successful metal exchanges using the PSE method. The N2 adsorption measurements confirmed the successful synthesis of porous MM-MOFs. The metal exchanged materials Ni-Cu-BTC, Zn-Cu-BTC, Fe-Cu-BTC, and Co-Cu-BTC were studied for hydrogen storage and showed a gravimetric uptake of 1.6, 1.63, 1.63, and 1.12 wt %; respectively. The increase in hydrogen adsorption capacity for the three metal exchanged materials is about 60% relative to that of the parent MOF (Cu-BTC). The improvement of gravimetric uptake in M-Cu-BTC (where M = Ni2+, Zn2+, and Fe2+) is probably due to the increase in binding enthalpy of H2 with the unsaturated metal sites after the partial exchange from Cu2+ to other metal ions. The higher charge density of metal ions strongly polarizes hydrogen and provides the primary binding sites inside the pores of Cu-BTC and subsequently enhances the gravimetric uptake of hydrogen.
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Affiliation(s)
| | - Isam H. Aljundi
- Department
of Chemical Engineering, King Fahd University
of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
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