Figure 6. ( a ) Side and Top views of BiNSs (012) and N ‐ BiNSs (012) configurations (the red, white, Figure 6. ( a ) Side and Top views of BiNSs (012) and N-BiNSs (012) configurations (the red, white, blue, purple and brown spheres represent: O, H, N, Bi, and C atoms, respectively); ( b ) Calculated blue, purple and brown spheres represent: O, H, N, Bi, and C atoms, respectively); ( b ) Calculated free ‐ energy diagram for *OCHO generation of N ‐ BiNSs and BiNSs for the electrochemical free-energy diagram for *OCHO generation of N-BiNSs and BiNSs for the electrochemical reduction reduction to formate process (where * represents the active site of the catalyst ). to formate process (where * represents the active site of the