Ionic Covalent Organic Frameworks for Energy Devices,Advanced Materials

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Ionic Covalent Organic Frameworks for Energy Devices
Advanced Materials ( IF 27.4 ) Pub Date : 2021-10-08 , DOI: 10.1002/adma.202105647
Xiaoguang Liang ₁ , Ye Tian ₁ , Yufei Yuan ₁ , Yoonseob Kim ₁

Affiliation

Covalent organic frameworks (COFs) are a class of porous crystalline materials whose facile preparation, functionality, and modularity have led to their becoming powerful platforms for the development of molecular devices in many fields of (bio)engineering, such as energy storage, environmental remediation, drug delivery, and catalysis. In particular, ionic COFs (iCOFs) are highly useful for constructing energy devices, as their ionic functional groups can transport ions efficiently, and the nonlabile and highly ordered all-covalent pore structures of their backbones provide ideal pathways for long-term ionic transport under harsh electrochemical conditions. Here, current research progress on the use of iCOFs for energy devices, specifically lithium-based batteries and fuel cells, is reviewed in terms of iCOF backbone-design strategies, synthetic approaches, properties, engineering techniques, and applications. iCOFs are categorized as anionic COFs or cationic COFs, and how each of these types of iCOFs transport lithium ions, protons, or hydroxides is illustrated. Finally, the current challenges to and future opportunities for the utilization of iCOFs in energy devices are described. This review will therefore serve as a useful reference on state-of-the-art iCOF design and application strategies focusing on energy devices.

中文翻译：

用于能源设备的离子共价有机框架

共价有机骨架 (COF) 是一类多孔结晶材料，其制备简便、功能强大且模块化，使其成为开发（生物）工程许多领域（如储能、环境修复）分子器件的强大平台、药物输送和催化。特别是，离子 COFs (iCOFs) 在构建能源设备方面非常有用，因为它们的离子官能团可以有效地传输离子，并且其骨架的不稳定且高度有序的全共价孔结构为长期离子传输提供了理想的途径恶劣的电化学条件。在这里，从 iCOF 主干设计策略的角度回顾了 iCOF 在能源设备中使用的当前研究进展，特别是锂基电池和燃料电池，合成方法、特性、工程技术和应用。iCOF 分为阴离子 COF 或阳离子 COF，并说明了这些类型的 iCOF 中的每一种如何传输锂离子、质子或氢氧化物。最后，描述了在能源设备中使用 iCOF 的当前挑战和未来机遇。因此，这篇综述将作为关注能源设备的最先进 iCOF 设计和应用策略的有用参考。

更新日期：2021-10-08

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