Construction of an Fe, N and S-codoped ultra-thin carbon nanosheet superstructure for the oxygen reduction reaction

A novel 3D superstructure containing Fe, N, and S-codoped ultra-thin carbon nanosheets was prepared. The newly developed superstructure possessed a hierarchical porosity and a high dopant content, and served as an efficient noble-metal free ORR electrocatalyst (onset potential 0.95 V vs. RHE).