Fig. 5: Electrocatalytic NO₂RR assessment.

a The LSV curves for Fe₂Co₁/NC, Fe/NC and Co/NC. b FE and NH₃ production rate versus potential for Fe₂Co₁/NC, Fe/NC, and Co/NC. c Potential-dependent FEs and NH₃ yield for Fe₂Co₁/NC. d Long-term operational stability of Fe₂Co₁/NC.