High specific surface area Fe–N–C electrocatalysts for the oxygen reduction reaction synthesized by a hard-template-assisted ball milling strategy

The single atom Fe–N–C catalyst derived from the ZIF-8 precursor synthesized by a hard-template-assisted ball milling strategy has high specific surface area and shows high ORR activity in acid solutions and 1.5 bar H 2 –O 2 at 80 °C.