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Cationic Covalent Organic Frameworks for Fabricating an Efficient Triboelectric Nanogenerator
ACS Materials Letters ( IF 9.6 ) Pub Date : 2020-11-18 , DOI: 10.1021/acsmaterialslett.0c00485
Lipeng Zhai 1 , Wutao Wei 1 , Baiwei Ma 1 , Wanyu Ye 1 , Jing Wang 1 , Weihua Chen 2 , Xiubei Yang 1 , Siwen Cui 1 , Zijie Wu 3 , Constantinos Soutis 3 , Guangshan Zhu 4 , Liwei Mi 1
Affiliation  

Covalent organic frameworks (COFs) have developed as a precisely tailor-made platform for integrating different functionalities into the frameworks via reticular chemistry. In this work, two COFs with a similar topology and skeleton but different charge state over the skeleton are designed and applied to clarify the contributions of cationic groups to the output performance of a triboelectric nanogenerator (TENG). The cationic functional centers are distributed alternately over both sides of the pore channels. The cationic COF possesses unconventional electrostatic functions due to the ionic interface over the skeletons. The output performance of a cationic COF decorated with an electric-dipole-based TENG is improved by a 2-fold contrast to the neutral analogue. Moreover, a cationic COF-based TENG is further employed to charge commercial capacitors (0.1 F), light up light-emitting diodes (LEDs), and power a stopwatch. This work illustrates the facile construction of a cationic COF and its application in fabricating a TENG, generating an ecofriendly and excellent-performance energy harvesting and self-powered device.

中文翻译:

阳离子共价有机框架,用于制造高效的摩擦纳米发电机

共价有机框架(COF)已开发为精确定制的平台,用于通过网状化学将不同功能集成到框架中。在这项工作中,设计并应用了两个具有相似拓扑结构和骨架但在骨架上具有不同电荷状态的COF,以阐明阳离子基团对摩擦电纳米发电机(TENG)输出性能的贡献。阳离子功能中心在孔道的两侧交替分布。由于骨架上的离子界面,阳离子COF具有非常规的静电功能。与基于偶极的TENG修饰的阳离子COF的输出性能相比于中性类似物提高了2倍。此外,基于阳离子COF的TENG进一步用于给商用电容器(0.1 F)充电,点亮发光二极管(LED)并为秒表供电。这项工作说明了阳离子COF的简便构造及其在制造TENG中的应用,从而产生了环保且性能卓越的能量收集和自供电设备。
更新日期:2020-12-07
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