Carbazole-decorated covalent triazine frameworks: Novel nonmetal catalysts for carbon dioxide fixation and oxygen reduction reaction

The task-specific covalent triazine frameworks (CTF-CSUs) with carbazole moieties embedded in the main chain were designed and prepared by a bottom-up technology. The CTF-CSUs exhibit extremely high yields (99%) under significantly mild conditions (0.1 MPa, 25 °C) for CO2 chemical fixation. More importantly, they deliver attractive ORR activity, superior durability and methanol tolerance relative to commercially available Pt/C reference electrocatalyst (E-TEK, 20%).