First principles study of a triazine-based covalent organic framework as a high-capacity anode material for Na/K-ion batteries

. Finally, it is found that the average voltage of the bilayer TCOF for NIBs and KIBs is 0.53 and 0.48 V, respectively. Based on these results, we can conclude that the bilayer TCOF may be a suitable anode material for NIBs and KIBs.