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Qi S, Xiong S, Xiong L, Li H, Liu B, Liu Y, Xiong K, Yan H, Lv K, Liu H, Hu S. Crystalline versus Amorphous: High-Performance Hafnium Phosphonate Framework for the Separation of Uranium and Transuranium Elements. Inorg Chem 2023. [PMID: 37413971 DOI: 10.1021/acs.inorgchem.3c01458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
Metal phosphonate frameworks (MPFs) consisting of tetravalent metal ions and aryl-phosphonate ligands feature a large affinity for actinides and excellent stabilities in harsh aqueous environments. However, it remains elusive how the crystallinity of MPFs influences their performance in actinide separation. To this end, we prepared a new category of porous, ultrastable MPF with different crystallinities for uranyl and transuranium separation. The results demonstrated that crystalline MPF was generally a better adsorbent for uranyl than the amorphous counterpart and ranked as the top-performing one for uranyl and plutonium in strong acidic solutions. A plausible uranyl sequestration mechanism was unveiled by using powder X-ray diffraction in tandem with vibrational spectroscopy, thermogravimetry, and elemental analysis.
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Affiliation(s)
- Songzhu Qi
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230026 Hefei, China
| | - Shunshun Xiong
- Institute of Nuclear Physics and Chemistry (INPC), China Academy of Engineering Physics (CAEP), Mianyang, 621900 Sichuan, China
| | - Liangping Xiong
- Institute of Nuclear Physics and Chemistry (INPC), China Academy of Engineering Physics (CAEP), Mianyang, 621900 Sichuan, China
| | - Hao Li
- Institute of Nuclear Physics and Chemistry (INPC), China Academy of Engineering Physics (CAEP), Mianyang, 621900 Sichuan, China
| | - Boyu Liu
- Institute of Nuclear Physics and Chemistry (INPC), China Academy of Engineering Physics (CAEP), Mianyang, 621900 Sichuan, China
| | - Yi Liu
- Institute of Nuclear Physics and Chemistry (INPC), China Academy of Engineering Physics (CAEP), Mianyang, 621900 Sichuan, China
| | - Ke Xiong
- Institute of Nuclear Physics and Chemistry (INPC), China Academy of Engineering Physics (CAEP), Mianyang, 621900 Sichuan, China
| | - Heng Yan
- Institute of Nuclear Physics and Chemistry (INPC), China Academy of Engineering Physics (CAEP), Mianyang, 621900 Sichuan, China
| | - Kai Lv
- Institute of Nuclear Physics and Chemistry (INPC), China Academy of Engineering Physics (CAEP), Mianyang, 621900 Sichuan, China
| | - Hewen Liu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230026 Hefei, China
| | - Sheng Hu
- Institute of Nuclear Physics and Chemistry (INPC), China Academy of Engineering Physics (CAEP), Mianyang, 621900 Sichuan, China
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Salcedo-Abraira P, Vilela SMF, Ureña N, Salles F, Várez A, Horcajada P. Ion-Exchanged UPG-1 as Potential Electrolyte for Fuel Cells. Inorg Chem 2021; 60:11803-11812. [PMID: 34319707 DOI: 10.1021/acs.inorgchem.1c00800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Proton-exchange membrane fuel cells are an attractive green technology for energy production. However, one of their major drawbacks is instability of the electrolytes under working conditions (i.e., temperature and humidity). Some metal-organic frameworks (MOFs) have recently emerged as promising alternative electrolyte materials because of their higher stability (compared with the organic polymers currently used as electrolytes), proton conductivity, and outstanding porosity and versatility. Here, we present ionic exchange in a microporous zirconium phosphonate, UPG-1, as an efficient strategy to enhance its conductivity and cyclability. Thus, labile protons of the hybrid structure were successfully replaced by different alkali cations (Li+, Na+, and K+), leading to 2 orders of magnitude higher proton conductivity than the pristine UPG-1 (up to 2.3 × 10-2 S·cm-1, which is comparable with those of the commercial electrolytes). Further, the proton conductivity was strongly influenced by the MOF hydrophilicity and the polarization strength of the cation, as suggested by molecular simulation. Finally, a mixed-matrix membrane containing the best-performing material (the potassium-exchanged one) was successfully prepared, showing moderate proton conductivity (up to 8.51 × 10-3 S·cm-1).
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Affiliation(s)
- Pablo Salcedo-Abraira
- Advanced Porous Materials Unit, IMDEA Energy, Avenida Ramón de la Sagra 3, Móstoles, Madrid E-28935, Spain
| | - Sérgio M F Vilela
- Advanced Porous Materials Unit, IMDEA Energy, Avenida Ramón de la Sagra 3, Móstoles, Madrid E-28935, Spain
| | - Nieves Ureña
- Department of Materials Science and Engineering and Chemical Engineering, IAAB, Universidad Carlos III de Madrid, Avenida Universidad 30, Leganés, Madrid E-28911, Spain
| | - Fabrice Salles
- ICGM, Université Montpellier, CNRS, ENSCM, Montpellier 34095, France
| | - Alejandro Várez
- Department of Materials Science and Engineering and Chemical Engineering, IAAB, Universidad Carlos III de Madrid, Avenida Universidad 30, Leganés, Madrid E-28911, Spain
| | - Patricia Horcajada
- Advanced Porous Materials Unit, IMDEA Energy, Avenida Ramón de la Sagra 3, Móstoles, Madrid E-28935, Spain
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Mercuri G, Giambastiani G, Di Nicola C, Pettinari C, Galli S, Vismara R, Vivani R, Costantino F, Taddei M, Atzori C, Bonino F, Bordiga S, Civalleri B, Rossin A. Metal–Organic Frameworks in Italy: From synthesis and advanced characterization to theoretical modeling and applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213861] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Dębowski M, Florjańczyk Z, Ostrowski A, Guńka PA, Zachara J, Krztoń-Maziopa A, Chazarkiewicz J, Iuliano A, Plichta A. 1D and 2D hybrid polymers based on zinc phenylphosphates: synthesis, characterization and applications in electroactive materials. RSC Adv 2021; 11:7873-7885. [PMID: 35423336 PMCID: PMC8695067 DOI: 10.1039/d0ra09493e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 02/04/2021] [Indexed: 01/02/2023] Open
Abstract
The synthesis, structure and properties of three hybrid polymers based on zinc arylphosphates are described in this study. Zinc bis(diphenylphosphate) (ZnDPhP) was obtained as needle-like crystals containing hexagonally packed, homochiral 1 ∞[Zn(DPhP)2/2] helical chains. The XRD and DSC studies revealed that upon heating, ZnDPhP undergoes a reversible thermal transition at ca. 160 °C with expansion mainly perpendicular to its c-axis. Zinc phenylphosphate hydrate (ZnMPhP-H) formed plate-like particles with an average thickness of less than 1 μm and much thinner nanolayers with a basal spacing of 15.5 Å. ZnMPhP-H was easily and reversibly dehydrated to its anhydrous form, ZnMPhP-A, which exhibited a somewhat larger basal spacing of 16.5 Å and the capacity for amine intercalation. The thermal decomposition of ZnDPhP or ZnMPhP-A began around 250 °C, resulting in the formation of solid mixtures of zinc phosphates and electron-conducting carbonaceous phases. The bulk electrical conductivities of the poly(vinylidene fluoride)-based composites containing the ZnDPhP pyrolyzates reached 0.1-0.2 S cm-1. Upon mixing with silicone oil, all the synthesized hybrid polymers formed fluids that exhibit significant negative electrorheological effects and have potential for application in electroresponsive smart materials. The application of an electric field during the crosslinking of such systems affected the viscoelastic properties of the resultant solid composites, while the cured systems showed rather small electrorheological effects.
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Affiliation(s)
- Maciej Dębowski
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
| | - Zbigniew Florjańczyk
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
| | - Andrzej Ostrowski
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
| | - Piotr A Guńka
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
| | - Janusz Zachara
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
| | - Anna Krztoń-Maziopa
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
| | - Jakub Chazarkiewicz
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
| | - Anna Iuliano
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
| | - Andrzej Plichta
- Faculty of Chemistry, Warsaw University of Technology Noakowskiego 3 00-664 Warsaw Poland
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Advances and Challenges in the Creation of Porous Metal Phosphonates. MATERIALS 2020; 13:ma13235366. [PMID: 33256025 PMCID: PMC7734583 DOI: 10.3390/ma13235366] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/23/2020] [Accepted: 11/24/2020] [Indexed: 01/02/2023]
Abstract
In the expansive world of porous hybrid materials, a category of materials that has been rather less explored than others and is gaining attention in development is the porous metal phosphonates. They offer promising features towards applications which demand control over the inorganic–organic network and interface, which is critical for adsorption, catalysis and functional devices and technology. The need to establish a rationale for new synthesis approaches to make these materials in a controlled manner is by itself an important motivation for material chemists. In this review, we highlight the various synthetic strategies exploited, discussing various metal phosphonate systems and how they influence the properties of porous metal phosphonates. We discuss porous metal phosphonate systems based on transition metals with an emphasis on addressing challenges with tetravalent metals. Finally, this review provides a brief description of some key areas of application that are ideally suited for porous metal phosphonates.
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Vilela SMF, Salcedo-Abraira P, Gómez-Peña A, Trens P, Várez A, Salles F, Horcajada P. Proton Conductive Zr-Phosphonate UPG-1-Aminoacid Insertion as Proton Carrier Stabilizer. Molecules 2020; 25:E3519. [PMID: 32752117 PMCID: PMC7436027 DOI: 10.3390/molecules25153519] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 07/30/2020] [Accepted: 07/31/2020] [Indexed: 01/08/2023] Open
Abstract
Proton exchange membrane fuel cells (PEMFCs) are an attractive green technology for energy generation. The poor stability and performances under working conditions of the current electrolytes are their major drawbacks. Metal-Organic Frameworks (MOFs) have recently emerged as an alternative to overcome these issues. Here, we propose a robust Zr-phosphonate MOF (UPG-1) bearing labile protons able to act a priori as an efficient electrolyte in PEMFCs. Further, in an attempt to further enhance the stability and conductivity of UPG-1, a proton carrier (the amino acid Lysine, Lys) was successfully encapsulated within its porosity. The behaviors of both solids as an electrolyte were investigated by a complete experimental (impedance spectroscopy, water sorption) and computational approach (MonteCarlo, water sorption). Compared with the pristine UPG-1, the newly prepared Lys@UPG-1 composite showed similar proton conductivity but a higher stability, which allows a better cyclability. This improved cyclability is mainly related to the different hydrophobic-hydrophilic balance of the Lys@UPG-1 and UPG-1 and the steric protection of the reactive sites of the MOF by the Lys.
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Affiliation(s)
- Sérgio M. F. Vilela
- Advanced Porous Materials Unit (APMU), IMDEA Energy, Avda. Ramón de la Sagra 3, E-28935 Móstoles, Madrid, Spain; (S.M.F.V.); (P.S.-A.); (A.G.-P.)
| | - Pablo Salcedo-Abraira
- Advanced Porous Materials Unit (APMU), IMDEA Energy, Avda. Ramón de la Sagra 3, E-28935 Móstoles, Madrid, Spain; (S.M.F.V.); (P.S.-A.); (A.G.-P.)
| | - Alejandro Gómez-Peña
- Advanced Porous Materials Unit (APMU), IMDEA Energy, Avda. Ramón de la Sagra 3, E-28935 Móstoles, Madrid, Spain; (S.M.F.V.); (P.S.-A.); (A.G.-P.)
| | - Philippe Trens
- ICGM, Univ. Montpellier, CNRS, ENSCM, 34095 Montpellier, France;
| | - Alejandro Várez
- Department of Materials Science and Engineering and Chemical Engineering, Universidad Carlos III de Madrid, Avda. Universidad 30, E-28911 Leganés, Madrid, Spain
| | - Fabrice Salles
- ICGM, Univ. Montpellier, CNRS, ENSCM, 34095 Montpellier, France;
| | - Patricia Horcajada
- Advanced Porous Materials Unit (APMU), IMDEA Energy, Avda. Ramón de la Sagra 3, E-28935 Móstoles, Madrid, Spain; (S.M.F.V.); (P.S.-A.); (A.G.-P.)
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