1D/2D interface engineering of a CoPc-C 3 N 4 heterostructure for boosting the nitrogen reduction reaction to NH 3 .

Herein, we demonstrate the construction of a 1D/2D heterostructure of cobalt phthalocyanine (CoPc)-carbon nitride (C 3 N 4 ) for electrochemical N 2 reduction to NH 3 . Improved performance originates from the higher exposure of active surface sites. The electrochemical NRR performance showed an NH 3 formation rate of 423.8 μg h -1 mg cat -1 , a high faradaic efficiency (FE) of 33%, and stability for 20 h. This study provides a new strategy for designing a highly efficient 1D/2D electrocatalytic system for ammonia synthesis.