Programmed intralayer Co and interlayer Ni atoms in a covalent organic framework for synergistic CO 2 photoreduction

By employing an orthogonal site-encoding strategy, we developed a bimetallic TZCOF photocatalyst with distinct intralayer CoNOCl 2 and interlayer NiN 2 Cl 2 sites, achieving a CO generation rate of 13.6 mmol g −1 h −1 and 98.7% selectivity.