Electron Beam Irradiation as a General Approach for the Rapid Synthesis of Covalent Organic Frameworks under Ambient Conditions

• DOI: 10.1021/jacs.0c03941
• Publication Date: 2020-05-02T18:16:45Z
• Authors: Mingxing Zhang; Junchang Chen; Shitong Zhang; Xiaoqi Zhou; Linwei He; Matthew V. Sheridan; Mengjia Yuan; Maojiang Zhang; Long Chen; Xing Dai; Fuyin Ma; Jingdong Wang; Jiangtao Hu; Guozhong Wu; Xueqian Kong; Ruhong Zhou; Thomas E. Albrech...; Zhifang Chai; Shuao Wang
• Keywords: Covalent organic framework; Electron beam processing; Organic Synthesis

Crystalline porous materials such as covalent organic frameworks (COFs) are advanced to tackle challenges of catalysis and separation in industrial processes. Their synthetic routes often require elevated temperatures, closed systems with high pressure, long reaction times, hampering their applications. Here we use a traditionally unperceived strategy assemble highly crystalline COFs by electron beam irradiation controlled received dosage, contrasting sharply the previous observation that radiation damages crystallinity solids. Such synthesis can be achieved under ambient conditions within minutes, process is amendable for large-scale production. The intense targeted energy input reactants leads new pathways favor COF formation nearly quantitative yield. This applicable not only known but also series flexible difficult obtain using traditional methods.