Metal-free N-doped carbon blacks as excellent electrocatalysts for oxygen reduction reactions

Electrochemical oxygen reduction reactions (ORRs) require efficient, durable, and cost-effective electrocatalysts. In this regard, the development of metal-free catalysts with excellent activity is essential. Herein we report the development of a novel two-step heating route to produce metal-free N-doped carbon blacks. The prepared materials exhibit superior electrocatalytic performance for ORRs in a basic media, which is comparable to...