| Autor: |
Chao Lin, Linhai Sun, Xutong Meng, Xin Yuan, Cheng‐Xing Cui, Huijie Qiao, Pengjing Chen, Siwen Cui, Lipeng Zhai, Liwei Mi |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Angewandte Chemie (International ed. in English). 61(42) |
| ISSN: |
1521-3773 |
| Popis: |
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. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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