Metal-organic framework templated nitrogen and sulfur co-doped porous carbons as highly efficient metal-free electrocatalysts for oxygen reduction reactions

A novel MOF-templated nitrogen and sulphur co-doped porous material has been synthesized as an efficient electrocatalyst for oxygen reduction reactions (ORRs) for the first time. The representative NS(3 : 1)-C-MOF-5 catalyst shows the highest onset potential, and is even comparable to commercial Pt-C catalyst, due to the synergistic effect of N and S co-doping.