Fig. 2: A scheme of determining the optimum pathways.
From: Steering from electrochemical denitrification to ammonia synthesis
a The full reaction network for N2 production (constructed from Supplementary Table 1), where HONNOH* and N2O* are the key intermediates of non-N2O* and dis-N2O*/p-N2O* paths (Supplementary Fig. 7), respectively. b The scheme of global energy optimization. c Two optimal paths towards N2 via the further conversion of as-produced N2O*, where the common route from NO to N2O* is shown in thick green lines. The blue and red arrows connect the p-N2O* and dis-N2O* paths, respectively.
