State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China.
MOE Key Laboratory for Soft Chemistry and Functional Materials, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, P. R. China.
Macromol Rapid Commun. 2023 Jun;44(11):e2200678. doi: 10.1002/marc.202200678. Epub 2022 Sep 15.
The development and understanding of proton conductors based on phosphoric acid are critical for the field of chemistry, biology, and energy. Covalent organic frameworks (COFs), featuring highly crystalline structures and controllable pore sizes, are suitable for constructing phosphoric acid-based proton conductors. However, because of tedious and intricate synthesis, how to develop COFs based on phosphoric acid remains a substantial challenge. Herein, a side-chain decorated strategy is contributed to construct a phosphoric acid-functionalized, imine-linked COF by de novo synthesis. The phosphoric acid side chains with vigorous motion integrating with 1D nanochannels endow the resulting COF with intrinsic proton conductivity. This work expectantly provides a competitive alternative for producing phosphoric acid-functionalized COFs with high intrinsic proton conductivity.
基于磷酸的质子导体的开发和理解对化学、生物和能源领域至关重要。共价有机框架（COFs）具有高度结晶的结构和可控制的孔径，适合构建基于磷酸的质子导体。然而，由于合成过程繁琐复杂，如何开发基于磷酸的 COFs 仍然是一个巨大的挑战。在此，通过全新合成贡献了一种侧链修饰策略来构建磷酸功能化、亚胺键合的 COF。具有剧烈运动的磷酸侧链与 1D 纳米通道相结合，赋予所得 COF 内在的质子导电性。这项工作有望为生产具有高本征质子电导率的磷酸功能化 COF 提供一种有竞争力的替代方案。
