Ultrathin Graphitic C₃N₄ Nanosheets/Graphene Composites: Efficient Organic Electrocatalyst for Oxygen Evolution Reaction

Abstract

Abstract Graphitic C 3 N 4 (g‐C 3 N 4 ) is used as a low‐cost organic oxygen evolution reaction (OER) electrocatalyst. The integration of ultrathin g‐C 3 N 4 nanosheets with graphene leads to g‐C 3 N 4 /graphene composites with high OER activity and good durability. X‐ray photoelectron spectroscopy (XPS) studies suggest that the OER activity results from pyridinic‐N‐related active sites. This catalyst provides an alternative to OER catalysts based on transition metals.