Vinyl chloride, the monomer of polyvinyl is produced primarily via acetylene hydrochlorination catalyzed by environmentally toxic carbon-supported HgCl2. Recently, nitrogen-doped carbon materials have been explored as metal-free catalysts to substitute Herein, we describe development a cationic covalent triazine network (cCTN, cCTN-700) that selectively catalyzes hydrochlorination. cCTN-700 exh...