Function-oriented synthesis of two-dimensional (2D) covalent organic frameworks - from 3D solids to 2D sheets.,Chemical Society Reviews

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Function-oriented synthesis of two-dimensional (2D) covalent organic frameworks - from 3D solids to 2D sheets.
Chemical Society Reviews ( IF 40.4 ) Pub Date : 2020-06-03 , DOI: 10.1039/d0cs00236d
Xing Li ₁ , Priya Yadav ₁ , Kian Ping Loh ₁

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Covalent organic frameworks (COFs) are constructed from the precise integration of small organic blocks into an extended, porous framework via covalent linkages. COFs can also be viewed as an organic solid consisting of a periodic array of one dimensional (1-D) channels. Although a wide range of applications have been envisioned for COFs, understanding the structure–property correlation at the level of chemical linkages, topology, pore size and functionality is needed to unlock the potential of these materials. Herein, we review some emerging applications of two-dimensional (2D) COFs in solid-state photoluminescence, stimuli-responsive COFs, gas storage, ion conduction and energy storage, and discuss the intricate design principles that enable these COFs to perform better than their building blocks or polymeric counterparts. Going beyond bulk 2D-COFs, molecular thin organic layers called COFene can be derived from the exfoliation of 2D COFs, generating new properties for applications in optoelectronic devices, catalysis and separation.

中文翻译：

二维（2D）共价有机骨架的面向功能的合成-从3D实体到2D图纸。

共价有机骨架（COF的）从有机小块的精细积分构建到延伸，多孔框架通过共价键。COF也可以看作是由一维（1-D）通道的周期性阵列组成的有机固体。尽管已经为COF设想了广泛的应用，但需要了解化学键，拓扑，孔径和功能性级别上的结构与属性的关联，以释放这些材料的潜力。本文中，我们回顾了二维（2D）COF在固态光致发光，刺激响应型COF，气体存储，离子传导和能量存储中的一些新兴应用，并讨论了使这些COF能够比其性能更好的复杂设计原理。构建基块或聚合物对应物。除了块状2D-COF以外，还可以从2D COF的剥落中衍生出称为COFene的分子有机薄层，

更新日期：2020-07-21

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