Covalent Triazine Frameworks Prepared from 1,3,5-Tricyanobenzene

Abstract

A novel covalent triazine framework (CTF-0) was prepared by trimerization of 1,3,5-tricyanobenzene in molten ZnCl 2 . The monomer/ZnCl 2 ratio, the reaction time, and temperature significantly influence the structure and porosity of such networks. XRD measurements revealed that crystalline frameworks can be formed with surface areas around 500 m 2 ·g –1 and high CO 2 uptakes. Increasing the reaction temperature yielded an amorphous material with an enlarged surface area of 2000 m 2 ·g –1 . This material showed good catalytic activity for CO 2 cycloaddition.