Three-Dimensional Triptycene-Based Covalent Organic Frameworks with ceq or acs Topology
The growth of three-dimensional covalent organic frameworks (3D COFs) with new topologies is still considered as a great challenge due to limited availability of high-connectivity building units. Here we report the design and synthesis of 3D triptycene-based COFs, termed JUC-568 and JUC-569, following the deliberate symmetry-guided design principle. By combining a triangular prism (6-connected) node with a planar triangle (3-connected) or another triangular prism node, the targeted COFs adopt non-interpenetrated ceq or acs topology, respectively. Both materials show permanent porosity and impressive performance in the adsorption of CO2 (∼98 cm3/g at 273 K and 1 bar), CH4 (∼48 cm3/g at 273 K and 1 bar), and especially H2 (up to 274 cm3/g or 2.45 wt % at 77 K and 1 bar), which is highest among porous organic materials reported to date. This research thus provides a promising strategy for diversifying 3D COFs based on complex building blocks and promotes their potential applications in energy storage and environment-related fields.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:143 |
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| Enthalten in: |
Journal of the American Chemical Society - 143(2021), 7 vom: 24. Feb., Seite 2654-2659 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Li, Hui [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Revised 24.02.2021 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1021/jacs.0c12499 |
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| funding: |
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| 520 | |a The growth of three-dimensional covalent organic frameworks (3D COFs) with new topologies is still considered as a great challenge due to limited availability of high-connectivity building units. Here we report the design and synthesis of 3D triptycene-based COFs, termed JUC-568 and JUC-569, following the deliberate symmetry-guided design principle. By combining a triangular prism (6-connected) node with a planar triangle (3-connected) or another triangular prism node, the targeted COFs adopt non-interpenetrated ceq or acs topology, respectively. Both materials show permanent porosity and impressive performance in the adsorption of CO2 (∼98 cm3/g at 273 K and 1 bar), CH4 (∼48 cm3/g at 273 K and 1 bar), and especially H2 (up to 274 cm3/g or 2.45 wt % at 77 K and 1 bar), which is highest among porous organic materials reported to date. This research thus provides a promising strategy for diversifying 3D COFs based on complex building blocks and promotes their potential applications in energy storage and environment-related fields | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Chen, Fengqian |e verfasserin |4 aut | |
| 700 | 1 | |a Guan, Xinyu |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Jiali |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Cuiyan |e verfasserin |4 aut | |
| 700 | 1 | |a Tang, Bin |e verfasserin |4 aut | |
| 700 | 1 | |a Valtchev, Valentin |e verfasserin |4 aut | |
| 700 | 1 | |a Yan, Yushan |e verfasserin |4 aut | |
| 700 | 1 | |a Qiu, Shilun |e verfasserin |4 aut | |
| 700 | 1 | |a Fang, Qianrong |e verfasserin |4 aut | |
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