Highly selective and active NO reduction to synthesize NH3 based on graphene-substituted phthalocyanine Cu electrocatalysts

Electrocatalytic reduction of nitric oxide (eNORR) has attracted attention due to its dual function of NO removal and NH₃ synthesis. A novel carboxylated-graphene supported phthalocyanine Cu catalyst was synthesized and applied in eNORR, achieving an NH₃ yield of 471.9 μmol h^-1 cm^-2 and Faradaic efficiency of 94.07%, better than most catalysts reported.