Crystalline covalent triazine frameworks manipulated by aliphatic amine modulator  

作　　者：Xunliang Hu Yantong Guo Ruixue Sun Xiaoyan Wang Bien Tan 

机构地区：[1]Key Laboratory of Material Chemistry for Energy Conversion and Storage,Ministry of Education,School of Chemistry and Chemical Engineering,Huazhong University of Science and Technology,Wuhan 430074,China

出　　处：《Science China Chemistry》2023年第9期2676-2682,共7页中国科学（化学英文版）

基　　金：supported by the National Natural Science Foundation of China (21975086, 52203259);the International S&T Cooperation Program of China (22161142005, 2018YFE0117300)。

摘　　要：Crystallization is an unsolved challenge in the chemistry of covalent triazine frameworks(CTFs) due to the poorly controlled simultaneous polymerization and crystallization processes. Herein, the synthesis of crystalline CTFs via the introduction of aliphatic amine as a dynamic modulator is reported. By optimizing the amount of aliphatic amine, the crystallization process can be controlled in an open system, resulting in the synthesis of crystalline CTFs. These crystalline CTFs exhibit much better photocatalytic hydrogen evolution performance, with highly ordered CTF-1-C3 demonstrating superior performance(10 mmol g^(-1)h^(-1)) compared with most reported CTF-1. This approach also allows for the preparation of various crystalline CTFs.

关 键 词：covalent triazine frameworks CRYSTALLINITY aliphatic amine modulator photocatalytic water splitting 

分 类 号：TQ317[化学工程—高聚物工业]