fig1
Figure 1. (A) Mechanisms of electrocatalytic synthesis of urea; (B) Curves for each element as an electrocatalyst for urea synthesis: UL curve, Ead*N2+*CO - Eb curve for the C-N coupling process, and Eb curve for the product; (C) Doping of Fe and Mo atoms into γ-GDY; (D and E) S-type and D-type structures after doping. γ-GDY: γ-graphdiyne.
