In this review, we scrutinize the design principles, synthetic routes, key features, and mechanistic investigations of sp 2 c-COFs. We survey the advances in their broad applications spanning heterogeneous catalysis, radionuclide sequestration, lithium-ion batteries, supercapacitors, and optical applications, and rationalize their superior ...

In the quest to expand the reticular chemistry and develop next-generation COFs with peculiar materials properties, sp2 carbon-conjugated COFs (sp2c-COFs) have garnered a surge of interest since their inception in 2016 due to the unparalleled features of continuous π-conjugation, high crystallinity, permanent porosity, unique optoelectronic prop...

2021年6月1日 · sp 2 carbon covalent organic frameworks (COFs) are a unique class of crystalline 2D polymers of all sp 2 carbon atoms, which can be designed via topology diagrams and synthesized by polycondensation. sp 2 carbon COFs comprise conjugated but planar polymers and periodically ordered π columns across materials, offering a molecular platform for ...

2017年8月18日 · We synthesized a two-dimensional (2D) crystalline covalent organic framework (sp2c-COF) that was designed to be fully π-conjugated and constructed from all sp2 carbons by C=C condensation reactions...

2023年10月11日 · Covalent organic frameworks (COFs) hold great promise for solar-driven hydrogen production. However, metal-free COFs for photocatalytic overall water splitting remain elusive, primarily due to challenges in simultaneously regulating their band structures and catalytic sites to enable concurrent half-reactions.

2017年8月22日 · 该方法通过化学合成实现了基于sp2碳（或sp2碳构成的有机单元）组成的二维全共轭有序排列的碳材料，该材料拥有有序的二维层状结构，并使其电子共轭能沿着二维sp2碳构成的拓扑网络结构扩展。 这种二维全共轭共价有机聚合物有别于传统的二维共价有机框架结构聚合物，在空气中可以长期放置（一年），并且在各种有机溶剂、水、酸或碱性条件下都表现出良好的稳定性。 相关结果发表在近期的Science 杂志上，论文第一作者为Enquan Jin博士。 江东林教 …

2025年1月6日 · Here we report an imine-to-olefin transformation strategy to form single-crystal sp2 c-COFs. The isolated single crystals display rectangular nanotube-like domains with sizes up to...

2018年10月8日 · In sp 2 c-COFs, the polymer backbones possess cyano (–CN) side groups that can serve as a ligand for triggering supramolecular interactions with specific metal species. To prove the concept, we...

2024年1月24日 · 二维共价有机框架（2d cofs）是一类由共价键有序连接有机构建单元的多孔结晶聚合物，具有开放的孔道、丰富的活性位点以及可调节的光电性质，在光电催化、能源转换和有机电子等领域展现出广阔的应用前景。

2023年5月2日 · sp 2 carbon-conjugated covalent organic framework (sp 2 c-COF) featured with high π-conjugation, high chemical stabilities, and designable chemical structures, are thus promising for applications including adsorption and separation, optoelectronic devices, and …