Edge-rich and (N, S)-doped 3D porous graphene as an efficient metal-free electrocatalyst for the oxygen reduction reaction†
Abstract
A novel edge-rich and (N, S)-doped 3D porous graphene was synthesized by chemical vapor deposition (CVD) and chemical corrosion. The hybrid material as a metal-free electrocatalyst exhibited a four-electron pathway, stronger alkaline tolerance and excellent catalytic activity for oxygen reduction reaction due to the edge effect and heteroatom synergistic effect.