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A Tetrathiafulvalene-Containing Covalent Organic Nanobelt: Preparation, Crystal Structure and Application for Sodium-Ion Battery
Chemical Science ( IF 7.6 ) Pub Date : 2024-11-14 , DOI: 10.1039/d4sc06300g
Xin Wang, Yuchan Zhang, Lei Zhang, Qianfeng Gu, Qi Liu, Yang Ren, Chun-Sing Lee, Qichun Zhang

Developing single crystals of covalent organic polymers (COPs) is highly attractive as they can afford precise structural information for studying internal interactions. Employing dative boron-nitrogen (B-N) bonds to construct single-crystalline COPs is feasible since the dynamic linkages can self-correct errors, thus improving crystallization. In this project, we develop single crystals of a new COP (CityU-26)with a nanobelt structure via the B-N-driven-assembly between 4,4',5,5'-tetrakis(4-(pyridin-4-yl)phenyl)-2,2'-bi(1,3-dithiolylidene) and 1,4‐bis(benzodioxaborole) benzene. The B-N coordination between these units gives rise to one-dimensional (1D) nanobelts, and hydrogen bonding interactions between these nanobelts lead to the formation of a three-dimensional (3D) supramolecular structure. CityU-26 demonstrates an impressive sodium storage capability of 365 mAh g-1 with a current density of 150 mA g-1, and the capability could reach 315 mAh g-1 at 750 mA g-1. The outstanding sodium storage behaviors of CityU-26 underscore the functionalization of B-N polymers, providing a promising platform for the development of efficient energy materials.

中文翻译:


一种含四噻吠戊烯的共价有机纳米带的制备、晶体结构及其在钠离子电池中的应用



开发共价有机聚合物 (COPs) 的单晶非常有吸引力,因为它们可以为研究内部相互作用提供精确的结构信息。采用配位硼氮 (B-N) 键构建单晶 COP 是可行的,因为动态键可以自我纠正误差,从而提高结晶度。在本项目中,我们通过 4,4',5,5'-四(4-(吡啶-4-基)苯基)-2,2'-二(1,3-二硫代乙基)和 1,4-双(苯并二氧硼酰胺)苯之间的 B-N 驱动组件开发了具有纳米带结构的新型 COP (CityU-26) 单晶。这些单元之间的 B-N 配位产生了一维 (1D) 纳米带,这些纳米带之间的氢键相互作用导致三维 (3D) 超分子结构的形成。CityU-26 在电流密度为 150 mA g-1 时表现出令人印象深刻的 365 mAh g-1 钠存储能力,在 750 mA g-1 时能力可达 315 mAh g-1。CityU-26 出色的储钠行为强调了 B-N 聚合物的功能化,为高效能源材料的开发提供了有前途的平台。
更新日期:2024-11-14
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