Imaging the Iodine Sorption-Induced Synchronous Skeleton-Pore Interactions of Single Covalent Organic Framework Particles
© 2024 Wiley‐VCH GmbH..
Covalent organic frameworks (COFs) are promising iodine adsorbents. For improved performances, it is critical and essential to fundamentally understand the underlying mechanism. Here, using the operando dark-field optical microscopy (DFM) imaging technique, the observation of an extraordinary structure shrinkage of 2D triphenylbenzene (TPB)-dimethoxyterephthaldehyde (DMTP)-COF upon the adsorption of I2 vapor at the single-particle resolution is reported. Combining single-particle DFM imaging with other experimental and theoretical methods, it is revealed that the shrinkage mechanism of the TPB-DMTP-COF is attributed to the I2 sorption-induced synchronous skeleton-pore interactions. The redox reaction of I2 and TPB-DMTP-COF yields some cationic skeletons and I3 - species, which triggers the multi-directional halogen-bonding interactions of I2 and I3 - as well as strong cation-π interactions between neutral and cationic skeletons, accompanying the synchronous in-plane skeleton shrinking in the xy plane and compact out-of-plane layer packing in the z-direction. This understanding of the synchronous action between the skeleton and pore breaks the perspective on the structure robustness of 2D COFs with excellent stability during the I2 uptake, which offers pivotal guidance for the rational design and creation of advanced microporous adsorbents.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - year:2024 |
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| Enthalten in: |
Small (Weinheim an der Bergstrasse, Germany) - (2024) vom: 25. März, Seite e2401167 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Lin, Ying [VerfasserIn] |
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| Links: |
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| Themen: |
Covalent organic frameworks (COFs) |
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| Anmerkungen: |
Date Revised 26.03.2024 published: Print-Electronic Citation Status Publisher |
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| doi: |
10.1002/smll.202401167 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM37017979X |
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| 245 | 1 | 0 | |a Imaging the Iodine Sorption-Induced Synchronous Skeleton-Pore Interactions of Single Covalent Organic Framework Particles |
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| 500 | |a Date Revised 26.03.2024 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status Publisher | ||
| 520 | |a © 2024 Wiley‐VCH GmbH. | ||
| 520 | |a Covalent organic frameworks (COFs) are promising iodine adsorbents. For improved performances, it is critical and essential to fundamentally understand the underlying mechanism. Here, using the operando dark-field optical microscopy (DFM) imaging technique, the observation of an extraordinary structure shrinkage of 2D triphenylbenzene (TPB)-dimethoxyterephthaldehyde (DMTP)-COF upon the adsorption of I2 vapor at the single-particle resolution is reported. Combining single-particle DFM imaging with other experimental and theoretical methods, it is revealed that the shrinkage mechanism of the TPB-DMTP-COF is attributed to the I2 sorption-induced synchronous skeleton-pore interactions. The redox reaction of I2 and TPB-DMTP-COF yields some cationic skeletons and I3 - species, which triggers the multi-directional halogen-bonding interactions of I2 and I3 - as well as strong cation-π interactions between neutral and cationic skeletons, accompanying the synchronous in-plane skeleton shrinking in the xy plane and compact out-of-plane layer packing in the z-direction. This understanding of the synchronous action between the skeleton and pore breaks the perspective on the structure robustness of 2D COFs with excellent stability during the I2 uptake, which offers pivotal guidance for the rational design and creation of advanced microporous adsorbents | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a covalent organic frameworks (COFs) | |
| 650 | 4 | |a dark‐field optical microscopy | |
| 650 | 4 | |a iodine sorption | |
| 650 | 4 | |a single‐particle imaging | |
| 650 | 4 | |a synchronous skeleton–pore interactions | |
| 700 | 1 | |a Wang, Changjiang |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Jinxiang |e verfasserin |4 aut | |
| 700 | 1 | |a Tang, Jian |e verfasserin |4 aut | |
| 700 | 1 | |a Ye, Guangmao |e verfasserin |4 aut | |
| 700 | 1 | |a Zhao, Xiaobing |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Hua |e verfasserin |4 aut | |
| 700 | 1 | |a He, Yi |e verfasserin |4 aut | |
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| 773 | 1 | 8 | |g year:2024 |g day:25 |g month:03 |g pages:e2401167 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1002/smll.202401167 |3 Volltext |
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