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A tetrathiafulvalene-containing covalent organic nanobelt: preparation, crystal structure and application for sodium-ion batteries
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 Sin 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 a single-crystal COP with a nanobelt structure, namely CityU-26, via 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 the nanobelts lead to the formation of a three-dimensional (3D) supramolecular structure. CityU-26 demonstrates an impressive sodium storage capability of 365 mA h g−1 with a current density of 150 mA g−1, and the capability could reach 315 mA h 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:


一种含四噻噻黄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错误,从而改善结晶。在本项目中,我们通过 4,4',5,5'-四(4-(吡啶-4-基)苯基)-2,2'-bi(1,3-二硫酰亚胺)和 1,4-双(苯并二氧硼酰胺)苯之间的 B-N 驱动组装开发了一种具有纳米带结构的单晶 COP,即 CityU-26。这些单元之间的 B-N 配位产生了一维 (1D) 纳米带,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 的情况下,表现出令人印象深刻的 365 mA h g-1 钠储存能力,在 750 mA g-1 时,这种能力可以达到 315 mA h g-1CityU-26 出色的储钠行为强调了 B-N 聚合物的功能化,为开发高效能源材料提供了一个有前途的平台。
更新日期:2024-11-14
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