Engineering bimetal Cu, Co sites on 3D N-doped porous carbon nanosheets for enhanced oxygen reduction electrocatalysis

Abstract

3D mesoporous Cu,Co–N–C nanosheet architectures are fabricated, showing greatly enhanced catalytic activity and stability in the ORR relative to their mono-metallic counterparts. Such superiority results from the synergistic interplay of their bimetallic sites, which can offer more accessible active sites and efficiently modulate their surface/interface electronic structures.