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Chen F, Zhang K, Yuan Y, Wong WP, Wang G, Li X, Wang L, Li R, Wu Z, Lin J, Xu HS, Loh KP. Ion-Conductive Metallo-Covalent Organic Frameworks Constructed with Tridentate Ligand and Zn Nodes. J Am Chem Soc 2023; 145:25341-25351. [PMID: 37956115 DOI: 10.1021/jacs.3c09114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Metallo-covalent organic frameworks (metallo-COFs) are organometallic scaffolds in which covalently bonded organic frameworks are interwoven with metal-coordinated pendant groups. Unlike the rigid ligands traditionally used for metal coordination, the utilization of "soft" ligands allows for configurable topology and pore structure in metallo-COFs, particularly when the ligands are generated in situ during dynamic synthesis. In this study, we present the rational synthesis of metallo-COFs based on pyridine-2,6-diimine (pdi), wherein the incorporation of Zn2+ ions and in situ-generated tridentate ligands (pdi) yields metallo-COFs with a square-like lattice. In the absence of Zn2+ ions, a topological isomer COF with a Kagome lattice is instead produced. Thus, the presence or absence of Zn2+ ions allows us to switch between two distinct morphologies corresponding to metallo-COF or COF. In comparison to Brønsted acid-catalyzed COF, which necessitates postmetallization for loading metal ions, the metal-templated COF synthesis method yields COFs with improved crystallinity and approximately 1:1 [Zn2+]/ligand composition. Building upon the metal-templated COF synthesis approach, we successfully synthesized pdiCOF-Zn-2 and pdiCOF-Zn-3, which possess square-like and honeycomb lattices, respectively. The enhanced crystallinity and near 1:1 [Zn2+]/ligand composition of pdiCOF-Zn-3 (honeycomb) facilitate its application as ion transport channels.
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Affiliation(s)
- Fangzheng Chen
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University Binhai New City, Fuzhou 350507, China
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Kun Zhang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Yijia Yuan
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Walter Peide Wong
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Gang Wang
- Department of Physics and Shenzhen Key Laboratory of Advanced Quantum Functional Materials and Devices, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xing Li
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Lu Wang
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University Binhai New City, Fuzhou 350507, China
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Runlai Li
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Zhitan Wu
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University Binhai New City, Fuzhou 350507, China
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Junhao Lin
- Department of Physics and Shenzhen Key Laboratory of Advanced Quantum Functional Materials and Devices, Southern University of Science and Technology, Shenzhen 518055, China
| | - Hai-Sen Xu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials (LIFM), Institute of Green Chemistry and Molecular Engineering (IGCME), School of Chemistry, Sun Yat-Sen University, Guangzhou, Guangdong 510275, China
| | - Kian Ping Loh
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University Binhai New City, Fuzhou 350507, China
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
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Majewska K, Mroczkowska-Szerszeń M, Letmanowski R, Ryś P, Pudełko W, Dudek M, Zalewska A, Obarski N, Dudek L, Piszcz M, Żukowska GZ, Siekierski M. Structural and Charge Transport Properties of Composites of Phosphate-Silicate Protonic Glass with Uranyl Hydroxy-Phosphate and Hydroxy-Arsenate Obtained by Mechano-Chemical Synthesis Undergoing Hydration Changes. MATERIALS (BASEL, SWITZERLAND) 2022; 16:267. [PMID: 36614605 PMCID: PMC9822067 DOI: 10.3390/ma16010267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 11/22/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
The introduction of the hydrogen economy, despite its obvious technological problems, creates a need for a significant number of niche-focused solutions, such as small-sized (10-100 W) fuel cells able to run on hydrogen of lesser purity than what is considered a standard in the case of PEMFCs. One of the solutions can be derived from the fact that an increase in the operational temperature of a cell significantly decreases its susceptibility to catalyst poisoning. Electrolytes suitable for the so-called medium temperature operational range of 120-400 °C, hence developed, are neither commercialized nor standardized. Among them, phosphate silicate protonically conductive glasses were found not only to reveal interestingly high levels of operational parameters, but also, to exhibit superior chemical and electrochemical stability over their polymeric counterparts. On the other hand, their mechanical properties, including cracking fragility, still need elaboration. Initial studies of the composite phosphate silicate glasses with uranyl-based protonic conductors, presented here, proved their value both in terms of application in fuel cell systems, and in terms of understanding the mechanism governing the charge transport mechanism in these and similar systems. It was found that whereas systems containing 10-20 wt% of the crystalline additive suffer from significant instability, materials containing 45-80 wt% (with an optimum at 60%) should be examined more thoughtfully. Moreover, the uranyl hydrogen phosphate was found to surpass its arsenate counterpart as an interesting self-healing behavior of the phase structure of the derived composite was proved.
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Affiliation(s)
- Karolina Majewska
- Inorganic Chemistry and Solid State Technology Division, Faculty of Chemistry, Warsaw University of Technology, ul. Noakowskiego 3, 00-664 Warsaw, Poland
| | | | - Rafał Letmanowski
- Inorganic Chemistry and Solid State Technology Division, Faculty of Chemistry, Warsaw University of Technology, ul. Noakowskiego 3, 00-664 Warsaw, Poland
| | - Piotr Ryś
- Inorganic Chemistry and Solid State Technology Division, Faculty of Chemistry, Warsaw University of Technology, ul. Noakowskiego 3, 00-664 Warsaw, Poland
| | - Wojciech Pudełko
- Inorganic Chemistry and Solid State Technology Division, Faculty of Chemistry, Warsaw University of Technology, ul. Noakowskiego 3, 00-664 Warsaw, Poland
- Paul Scherrer Institut (PSI), Forschungsstrasse 111, 5232 Villigen, Switzerland
| | - Magdalena Dudek
- Faculty of Fuels and Energy, AGH—University of Science and Technology, al. Mickiewicza 30, 30-059 Cracow, Poland
| | - Aldona Zalewska
- Inorganic Chemistry and Solid State Technology Division, Faculty of Chemistry, Warsaw University of Technology, ul. Noakowskiego 3, 00-664 Warsaw, Poland
| | - Norbert Obarski
- Inorganic Chemistry and Solid State Technology Division, Faculty of Chemistry, Warsaw University of Technology, ul. Noakowskiego 3, 00-664 Warsaw, Poland
| | - Lidia Dudek
- Oil and Gas Institute—National Research Institute, ul. Lubicz 25a, 30-350 Cracow, Poland
| | - Michał Piszcz
- Inorganic Chemistry and Solid State Technology Division, Faculty of Chemistry, Warsaw University of Technology, ul. Noakowskiego 3, 00-664 Warsaw, Poland
| | - Grażyna Zofia Żukowska
- Inorganic Chemistry and Solid State Technology Division, Faculty of Chemistry, Warsaw University of Technology, ul. Noakowskiego 3, 00-664 Warsaw, Poland
| | - Maciej Siekierski
- Inorganic Chemistry and Solid State Technology Division, Faculty of Chemistry, Warsaw University of Technology, ul. Noakowskiego 3, 00-664 Warsaw, Poland
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Dey A, Ramlal VR, Sankar SS, Kundu S, Mandal AK, Das A. Self-assembled cationic organic nanosheets: role of positional isomers in a guanidinium-core for efficient lithium-ion conduction. Chem Sci 2021; 12:13878-13887. [PMID: 34760173 PMCID: PMC8549776 DOI: 10.1039/d1sc04017k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 09/17/2021] [Indexed: 11/21/2022] Open
Abstract
The growing energy demand with the widespread use of smart portable electronics, as well as an exponential increase in demand for smart batteries for electric vehicles, entails the development of efficient portable batteries with high energy density and safe power storage systems. Li-ion batteries arguably have superior energy density to all other traditional batteries. Developing mechanically robust solid-state electrolytes (SSEs) for lithium-ion conduction for an efficient portable energy storage unit is vital to empower this technology and overcome the safety constraints of liquid electrolytes. Herein, we report the formation of self-assembled organic nanosheets (SONs) utilizing positional isomers of small organic molecules (AM-2 and AM-3) for use as SSEs for lithium-ion conduction. Solvent-assisted exfoliation of the bulk powder yielded SONs having near-atomic thickness (∼4.5 nm) with lateral dimensions in the micrometer range. In contrast, self-assembly in the DMF/water solvent system produced a distinct flower-like morphology. Thermodynamic parameters, crystallinity, elemental composition, and nature of H-bonding for two positional isomers are established through various spectroscopic and microscopic studies. The efficiency of the lithium-ion conducting properties is correlated with factors like nanostructure morphology, ionic scaffold, and locus of the functional group responsible for forming the directional channel through H-bonding in the positional isomer. Amongst the three different morphologies studied, SONs display higher ion conductivity. In between the cationic and zwitterionic forms of the monomer, integration of the cationic scaffold in the SON framework led to higher conductivity. Amongst the two positional isomers, the meta-substituted carboxyl group forms a more rigid directional channel through H-bonding to favor ionic mobility and accounts for the highest ion conductivity of 3.42 × 10-4 S cm-1 with a lithium-ion transference number of 0.49 at room temperature. Presumably, this is the first demonstration that signifies the importance of the cationic scaffold, positional isomers, and nanostructure morphologies in improving ionic conductivity. The ion-conducting properties of such SONs having a guanidinium-core may have significance for other interdisciplinary energy-related applications.
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Affiliation(s)
- Ananta Dey
- Analytical and Environmental Science Division, Centralized Instrument Facility, CSIR-Central Salt and Marine Chemicals Research Institute Bhavnagar Gujarat-364002 India .,Academy of Scientific and Innovative Research (AcSIR), CSIR - Human Resource Development Centre (HRDC) Campus Sector 19, Kamla Nehru Nagar Ghaziabad Uttar Pradesh-201 002 India
| | - Vishwakarma Ravikumar Ramlal
- Analytical and Environmental Science Division, Centralized Instrument Facility, CSIR-Central Salt and Marine Chemicals Research Institute Bhavnagar Gujarat-364002 India .,Academy of Scientific and Innovative Research (AcSIR), CSIR - Human Resource Development Centre (HRDC) Campus Sector 19, Kamla Nehru Nagar Ghaziabad Uttar Pradesh-201 002 India
| | - Selvasundarasekar Sam Sankar
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI) Karaikudi Tamil Nadu 630003 India
| | - Subrata Kundu
- Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI) Karaikudi Tamil Nadu 630003 India
| | - Amal Kumar Mandal
- Analytical and Environmental Science Division, Centralized Instrument Facility, CSIR-Central Salt and Marine Chemicals Research Institute Bhavnagar Gujarat-364002 India .,Academy of Scientific and Innovative Research (AcSIR), CSIR - Human Resource Development Centre (HRDC) Campus Sector 19, Kamla Nehru Nagar Ghaziabad Uttar Pradesh-201 002 India
| | - Amitava Das
- Academy of Scientific and Innovative Research (AcSIR), CSIR - Human Resource Development Centre (HRDC) Campus Sector 19, Kamla Nehru Nagar Ghaziabad Uttar Pradesh-201 002 India.,Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata Mohanpur 741 246 West Bengal India
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