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He X. Fundamental Perspectives on the Electrochemical Water Applications of Metal-Organic Frameworks. Nanomicro Lett 2023; 15:148. [PMID: 37286907 PMCID: PMC10247659 DOI: 10.1007/s40820-023-01124-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 05/10/2023] [Indexed: 06/09/2023]
Abstract
HIGHLIGHTS The recent development and implementation of metal-organic frameworks (MOFs) and MOF-based materials in electrochemical water applications are reviewed. The critical factors that affect the performances of MOFs in the electrochemical reactions, sensing, and separations are highlighted. Advanced tools, such as pair distribution function analysis, are playing critical roles in unraveling the functioning mechanisms, including local structures and nanoconfined interactions. Metal-organic frameworks (MOFs), a family of highly porous materials possessing huge surface areas and feasible chemical tunability, are emerging as critical functional materials to solve the growing challenges associated with energy-water systems, such as water scarcity issues. In this contribution, the roles of MOFs are highlighted in electrochemical-based water applications (i.e., reactions, sensing, and separations), where MOF-based functional materials exhibit outstanding performances in detecting/removing pollutants, recovering resources, and harvesting energies from different water sources. Compared with the pristine MOFs, the efficiency and/or selectivity can be further enhanced via rational structural modulation of MOFs (e.g., partial metal substitution) or integration of MOFs with other functional materials (e.g., metal clusters and reduced graphene oxide). Several key factors/properties that affect the performances of MOF-based materials are also reviewed, including electronic structures, nanoconfined effects, stability, conductivity, and atomic structures. The advancement in the fundamental understanding of these key factors is expected to shed light on the functioning mechanisms of MOFs (e.g., charge transfer pathways and guest-host interactions), which will subsequently accelerate the integration of precisely designed MOFs into electrochemical architectures to achieve highly effective water remediation with optimized selectivity and long-term stability.
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Affiliation(s)
- Xiang He
- Department of Mechanical and Civil Engineering, Florida Institute of Technology, Melbourne, FL, 32901, USA.
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Benmore CJ, Benmore SR, Edwards AD, Shrader CD, Bhat MH, Cherry BR, Smith P, Gozzo F, Shi C, Smith D, Yarger JL, Byrn SR, Weber JKR. A High Energy X-ray Diffraction Study of Amorphous Indomethacin. J Pharm Sci 2022; 111:818-824. [PMID: 34890631 PMCID: PMC11064786 DOI: 10.1016/j.xphs.2021.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 12/02/2021] [Accepted: 12/02/2021] [Indexed: 11/18/2022]
Abstract
Amorphous pharmaceuticals often possess a wide range of molecular conformations and bonding arrangements. The x-ray pair distribution function (PDF) method is a powerful technique for the characterization of variations in both intra-molecular and inter-molecular packing arrangements. Here, the x-ray PDF of amorphous Indomethacin is shown to be particularly sensitive to the preferred orientations of the chlorobenzyl ring found in isomers in the crystalline state. In some cases, the chlorobenzyl ring has no preferred torsional angle in the amorphous form, while in others evidence of distinct isomer orientations are observed. Amorphous samples with no preferred torsion angles of the chlorobenzyl ring are found to favor enhanced inter-molecular hydrogen bonding, and this is reflected in the intensity of the first sharp diffraction peak. These significant variations in structure rule out amorphous Indomethacin as a possible standard for x-ray PDF measurements. At high humidity, time resolved PDF's for >40 h reveal water molecules forming hydrogen bonds with Indomethacin molecules. A simple linear hydrogen bond model indicates that water molecules in the wet amorphous form have similar hydrogen bond strengths to those found between Indomethacin dimers or chains in the dry amorphous form.
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Affiliation(s)
- C J Benmore
- X-Ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, United States of America; Arizona State University, Tempe, AZ 85281, United States of America.
| | - S R Benmore
- Materials Development, Inc., Arlington Heights, IL 60004, United States of America
| | - A D Edwards
- Arizona State University, Tempe, AZ 85281, United States of America
| | - C D Shrader
- Arizona State University, Tempe, AZ 85281, United States of America
| | - M H Bhat
- Arizona State University, Tempe, AZ 85281, United States of America
| | - B R Cherry
- Arizona State University, Tempe, AZ 85281, United States of America
| | - P Smith
- Improved Pharma, West Lafayette, IN 47906, United States of America
| | - F Gozzo
- Excelsus Structural Solutions, Park Innovaare, 5234 Villigen, Switzerland
| | - C Shi
- Data Science Consulting, Tiger Analytics, Santa Clara, CA 95054
| | - D Smith
- Improved Pharma, West Lafayette, IN 47906, United States of America; Department of Industrial and Physical Pharmacy, Purdue University, West Lafayette, IN 47906, United States of America
| | - J L Yarger
- Arizona State University, Tempe, AZ 85281, United States of America
| | - S R Byrn
- Improved Pharma, West Lafayette, IN 47906, United States of America; Department of Industrial and Physical Pharmacy, Purdue University, West Lafayette, IN 47906, United States of America
| | - J K R Weber
- X-Ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, United States of America; Materials Development, Inc., Arlington Heights, IL 60004, United States of America
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Åberg C, Robinson A. Single-molecule localisation microscopy: accounting for chance co-localisation between foci in bacterial cells. Eur Biophys J 2021. [PMID: 34148104 DOI: 10.1007/s00249-021-01555-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 04/07/2021] [Accepted: 06/09/2021] [Indexed: 11/05/2022]
Abstract
Using single-molecule fluorescence microscopes, individual biomolecules can be observed within live bacterial cells. Using differently coloured probes, physical associations between two different molecular species can be assessed through co-localisation measurements. However, bacterial cells are finite and small (~ 1 μm) relative to the resolution limit of optical microscopes (~ 0.25 μm). Furthermore, the images produced by optical microscopes are typically two-dimensional projections of three-dimensional objects. These limitations mean that a certain proportion of object pairs (molecules) will inevitably be assigned as being co-localised, even when they are distant at molecular distance scales (nm). What is this proportion? Here, we attack this problem, theoretically and computationally, by creating a model of the co-localisation expected purely due to chance. We thus consider a bacterial cell wherein objects are distributed at random and evaluate the co-localisation in a fashion that emulates an experimental analysis. We consider simplified geometries where we can most transparently investigate the effect of a finite size of the cell and the effect of probing a three-dimensional cell in only two dimensions. Coupling theory to simulations, we also study the co-localisation expected due to chance using parameters relevant to bacterial cells. Overall, we show that the co-localisation expected purely due to chance can be quite substantial and describe the parameters that it depends upon.
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Bezzon VDN, Ferreira FF, Smith P, Benmore CJ, Byrn SR, de Araujo GLB. Amorphous dispersions of flubendazole in hydroxypropyl methylcellulose: Formulation stability assisted by pair distribution function analysis. Int J Pharm 2021; 600:120500. [PMID: 33753163 DOI: 10.1016/j.ijpharm.2021.120500] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 03/09/2021] [Accepted: 03/14/2021] [Indexed: 02/04/2023]
Abstract
We use X-ray pair distribution function (PDF) analysis applied to high-energy synchrotron X-ray powder diffraction data to evaluate the amorphous solid dispersions interactions and their aging stability. The obtained systems are based on hydroxypropyl methylcellulose (hypromellose) derivatives and flubendazole (FBZ) drug dispersions prepared using a spray-dryer technique. We carry out stability studies under aging parameters (40 °C/75% relative humidity) to tune the systems' recrystallization. The results reveal that ion-base interactions between the drug-polymer matrix are responsible for reducing clustering processes yielding slower recrystallization and different ordering in the hypromellose phthalate (HPMCP/FBZ) and hypromellose acetate succinate (HPMC-AS/FBZ) systems and complete drug clustering in hypromellose (HPMC-E3/FBZ). The structural ordering was accessed using differential X-ray PDFs that revealed the region between 3.5 Å and 5.0 Å could be related to FBZ intermolecular interactions and is more ordered for the least stable system (HPMC-E3/FBZ) and less ordered for the most stable system (HPMCP/FBZ). These results show that the ion-base interactions between drug and matrix occur at these intermolecular distances.
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Affiliation(s)
- Vinicius D N Bezzon
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo Andre 09210580, SP, Brazil; Improved Pharma, West Lafayette, IN 47906, United States.
| | - Fabio F Ferreira
- Center for Natural and Human Sciences (CCNH), Federal University of ABC (UFABC), Santo Andre 09210580, SP, Brazil
| | - Pamela Smith
- Improved Pharma, West Lafayette, IN 47906, United States
| | - Chris J Benmore
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, IL 60439, United States
| | - Stephen R Byrn
- Improved Pharma, West Lafayette, IN 47906, United States; Department of Industrial and Physical Pharmacy, Purdue University, West Lafayette, IN 47906, United States.
| | - Gabriel L B de Araujo
- Department of Pharmacy, School of Pharmaceutical Sciences, University of São Paulo, São Paulo 05508-900, SP, Brazil
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Berro Y, Gueddida S, Bouizi Y, Bellouard C, Bendeif EE, Gansmuller A, Celzard A, Fierro V, Ihiawakrim D, Ersen O, Kassir M, El Haj Hassan F, Lebegue S, Badawi M, Canilho N, Pasc A. Imprinting isolated single iron atoms onto mesoporous silica by templating with metallosurfactants. J Colloid Interface Sci 2020; 573:193-203. [PMID: 32278950 DOI: 10.1016/j.jcis.2020.03.095] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 03/12/2020] [Accepted: 03/26/2020] [Indexed: 01/03/2023]
Abstract
HYPOTHESIS One of the main drawbacks of metal-supported materials, traditionally prepared by the impregnation of metal salts onto pre-synthesized porous supports, is the formation of large and unevenly dispersed particles. Generally, the larger are the particles, the lower is the number of catalytic sites. Maximum atom exposure can be reached within single-atom materials, which appear therefore as the next generation of porous catalysts. EXPERIMENTS Herein, we designed single iron atom-supported silica materials through sol-gel hydrothermal treatment using mixtures of a non-ionic surfactant (Pluronic P123) and a metallosurfactant (cetyltrimethylammoniumtrichloromonobromoferrate, CTAF) as porogens. The ratio between the Pluronic P123 and the CTAF enables to control the silica structural and textural properties. More importantly, CTAF acts as an iron source, which amount could be simply tuned by varying the non-ionic/metallo surfactants molar ratio. FINDINGS The fine distribution of iron atoms onto the silica mesopores results from the iron distribution within the mixed micelles, which serve as templates for the polymerization of the silica matrix. Several characterization methods were used to determine the structural and textural properties of the silica material (XRD, N2 sorption isotherms and TEM) and the homogeneous distribution and lack of clustering of iron atoms in the resulting materials (elemental analysis, magnetic measurements, pair distribution function (PDF), MAS-NMR and TEM mapping). The oxidation and spin state of single-iron atoms determined from their magnetic properties were confirmed by DFT calculations. This strategy might find straightforward applications in preparing versatile single atom catalysts, with improved efficiency compared to nanosized ones.
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Affiliation(s)
- Y Berro
- L2CM UMR CNRS 7053, Université de Lorraine, 54506 Vandœuvre-lès-Nancy, France; LPCT UMR CNRS 7019, Université de Lorraine, 54506 Vandœuvre-lès-Nancy, France; PRASE, Université Libanaise, Hadath, Lebanon
| | - S Gueddida
- LPCT UMR CNRS 7019, Université de Lorraine, 54506 Vandœuvre-lès-Nancy, France
| | - Y Bouizi
- L2CM UMR CNRS 7053, Université de Lorraine, 54506 Vandœuvre-lès-Nancy, France
| | - C Bellouard
- IJL UMR CNRS 7198, Université de Lorraine, 54000 Nancy, France.
| | - El-E Bendeif
- CRM2 UMR CNRS 7036, Université de Lorraine, 54506 Vandœuvre-lès-Nancy, France
| | - A Gansmuller
- CRM2 UMR CNRS 7036, Université de Lorraine, 54506 Vandœuvre-lès-Nancy, France
| | - A Celzard
- IJL UMR CNRS 7198, Université de Lorraine, 88000 Epinal, France
| | - V Fierro
- IJL UMR CNRS 7198, Université de Lorraine, 88000 Epinal, France
| | - D Ihiawakrim
- IPCMS UMR CNRS 7504, Université de Strasbourg, 67034 Strasbourg, France
| | - O Ersen
- IPCMS UMR CNRS 7504, Université de Strasbourg, 67034 Strasbourg, France
| | - M Kassir
- PRASE, Université Libanaise, Hadath, Lebanon
| | | | - S Lebegue
- LPCT UMR CNRS 7019, Université de Lorraine, 54506 Vandœuvre-lès-Nancy, France
| | - M Badawi
- LPCT UMR CNRS 7019, Université de Lorraine, 54506 Vandœuvre-lès-Nancy, France
| | - N Canilho
- L2CM UMR CNRS 7053, Université de Lorraine, 54506 Vandœuvre-lès-Nancy, France
| | - A Pasc
- L2CM UMR CNRS 7053, Université de Lorraine, 54506 Vandœuvre-lès-Nancy, France.
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Yang Y, Su H, Wu T, Jiang Y, Liu D, Yan P, Tian H, Yu H. Atomic pair distribution function research on Li 2MnO 3 electrode structure evolution. Sci Bull (Beijing) 2019; 64:553-561. [PMID: 36659746 DOI: 10.1016/j.scib.2019.03.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 03/05/2019] [Accepted: 03/11/2019] [Indexed: 01/21/2023]
Abstract
The mechanism research of structure-related reactions on Li2MnO3 is important to enhance the electrochemical performance of lithium-manganese-rich layered oxides. Although there are some reports on the structure evolution of Li2MnO3 during cycling process, the employed research techniques are very limited, mainly in/ex-situ X-ray diffraction, X-ray absorption and transmission electron microscopy. Here, atomic pair distribution function, a method to study the local atomic arrangement on the basis of average spectroscopic information, is used for the first time to study the local structure evolution of Li2MnO3 during electrochemical charge/discharge cycles. The results clearly demonstrate that Mn3+/Mn4+ redox couple is activated and Mn ions are reduced during discharging process. Some Mn ions in Mn layers can significantly migrate to Li layers and occupy the octahedral sites. As a result, a portion of inserted Li ions can occupy the face-shared tetrahedronsites, accompanied by the formation of local spinel-like structure. This work provides an important and suitable method based on the average spectroscopic information to investigate the local structure of electrode materials of lithium-ion batteries as well as other advanced battery systems.
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Affiliation(s)
- Yubo Yang
- College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing 100124, China; Institute of Solid State Microstructure and Properties, Beijing Key Laboratory of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
| | - Heng Su
- College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing 100124, China
| | - Tianhao Wu
- College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing 100124, China
| | - Yuyuan Jiang
- Institute of Solid State Microstructure and Properties, Beijing Key Laboratory of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
| | - Danmin Liu
- Institute of Solid State Microstructure and Properties, Beijing Key Laboratory of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China.
| | - Pengfei Yan
- Institute of Solid State Microstructure and Properties, Beijing Key Laboratory of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
| | - Haolai Tian
- China Spallation Neutron Source, Dongguan Institute of Neutron Science, Institute of High Energy of Physics, Chinese Academy of Sciences, Dongguan 523803, China
| | - Haijun Yu
- College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing 100124, China.
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Abstract
Total X-ray scattering and pair distribution function (PDF) analysis, using a high-energy synchrotron source, allow direct study of the short- and intermediate-range structure that distinguish amorphous, structurally disordered, and nanocrystalline biominerals. For such samples in which diffuse scatter is a significant component, care must be taken in the experimental procedures to optimize data quality and extract the useful signal necessary to calculate the PDF. General methods are described for data collection and processing, including commonly used software programs. Methods for analysis and interpretation of PDFs are presented, including direct real-space refinement and reverse Monte Carlo methods. Greater application of PDFs to amorphous and poorly crystallized biominerals will provide new insight into structure, especially over length scales that are not probed by other techniques. The rapid data collection available at synchrotron facilities also allows in situ kinetic studies of reactions involving biominerals.
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