共价有机骨架
共轭体系
材料科学
石墨烯
聚合
化学工程
聚合物
卟啉
催化作用
共聚物
界面聚合
高分子化学
共价键
甲苯
多孔性
纳米技术
单体
化学
有机化学
复合材料
工程类
作者
Zhicong Deng,Xianyang Tan,Huimin Wu,Lihong Tian,Ming Li
标识
DOI:10.1002/anie.201811399
摘要
Abstract Synthesis of free‐standing two‐dimensional (2D) conjugated covalent organic framework (COF) films linked by C−C bonds is highly desirable. Now a very simple and mild strategy has been developed to synthesize them by Suzuki polymerization on a water–toluene interface in a refrigerator. The versatility of this strategy was confirmed by the successful synthesis of two different 2D‐COF films: a porous graphene and a porphyrin‐contained 2D‐COF. Both 2D‐COF films have large lateral size and their crystalline domains were visualized by high resolution TEM. Based on the wide compatibility of Suzuki reaction, our breakthrough work opened a door for the synthesis of various 2D conjugated COF films. For application studies, the porous graphene exhibits a good carrier mobility, which is much higher than −C=N− linked 2D COF films and a good catalytic activity for hydrogen evolution reaction, which is comparable with nitrogen‐ or phosphorus‐doped graphene.
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