Covalent Organic Frameworks with Tailored Functionalities for Modulating Surface Potentials in Triboelectric Nanogenerators
© 2022 Wiley-VCH GmbH..
Designing materials with high triboelectric is an efficient way of improving output performance of triboelectric nanogenerators (TENGs). Herein, we synthesized a series of covalent organic frameworks (COFs) with similar skeletons but various functional groups ranging between electron-donating and electron-withdrawing. These COFs form an ideal platform for clarifying the contribution of each group to TENG performance because the pore wall is perturbed in a predesigned manner. Kelvin probe force microscopy and computational data suggest that surface potentials and electron affinities of COFs can be improved by introducing electron-donating or withdrawing groups, with the highest values observed for fluorinated COF. The TENG with fluorinated COF delivered an output voltage and current of 420 V and 64 μA, respectively, which are comparable to other reported materials. This strategy can be used to efficiently screen suitable frameworks as TENG materials with excellent output performance.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:61 |
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| Enthalten in: |
Angewandte Chemie (International ed. in English) - 61(2022), 42 vom: 17. Okt., Seite e202211601 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Lin, Chao [VerfasserIn] |
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| Links: |
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| Themen: |
Built-in Functionalities |
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| Anmerkungen: |
Date Revised 11.10.2022 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1002/anie.202211601 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Designing materials with high triboelectric is an efficient way of improving output performance of triboelectric nanogenerators (TENGs). Herein, we synthesized a series of covalent organic frameworks (COFs) with similar skeletons but various functional groups ranging between electron-donating and electron-withdrawing. These COFs form an ideal platform for clarifying the contribution of each group to TENG performance because the pore wall is perturbed in a predesigned manner. Kelvin probe force microscopy and computational data suggest that surface potentials and electron affinities of COFs can be improved by introducing electron-donating or withdrawing groups, with the highest values observed for fluorinated COF. The TENG with fluorinated COF delivered an output voltage and current of 420 V and 64 μA, respectively, which are comparable to other reported materials. This strategy can be used to efficiently screen suitable frameworks as TENG materials with excellent output performance | ||
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| 700 | 1 | |a Sun, Linhai |e verfasserin |4 aut | |
| 700 | 1 | |a Meng, Xutong |e verfasserin |4 aut | |
| 700 | 1 | |a Yuan, Xin |e verfasserin |4 aut | |
| 700 | 1 | |a Cui, Cheng-Xing |e verfasserin |4 aut | |
| 700 | 1 | |a Qiao, Huijie |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Pengjing |e verfasserin |4 aut | |
| 700 | 1 | |a Cui, Siwen |e verfasserin |4 aut | |
| 700 | 1 | |a Zhai, Lipeng |e verfasserin |4 aut | |
| 700 | 1 | |a Mi, Liwei |e verfasserin |4 aut | |
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