Recently, Wenjun Wang and Pingwei Liu’s research group of Zhejiang University College of Chemical and Biological Engineering (ZJU CBE) have developed a bottom-up multi-level assembly control method to prepare superstructure two-dimensional COF materials by solution polycondensation of multi-functional monomers. The team used single functional group competitive agents to increase the reaction reversibility, and used low flatness monomers to reduce the π - π stacking energy,...