ZIF‐8‐Derived Dual Metal (Fe, Ni)‐Nitrogen‐Doped Porous Carbon for Superior ORR Performance in Universal Acid‐Base Properties Solutions.

Fe‐N/C catalysts have currently comparable oxygen reduction reaction (ORR) activity to Pt/C catalysts, which are up for consideration as the most promising non‐precious metal material for research. In spite of this, its development and application are limited by the Fenton effect and insufficient stability. Herein, we have fabricated a FeNi‐nitrogen‐doped porous carbon (FeNi‐NPC) catalyst using solvent thermal method, made from the bimetallic (Fe, Ni)‐doped ZIF‐8. A soft template of glucose was used to control the pore structure and active specific surface area of the catalyst. With the benefit of the electronic effect of the bimetal, FeNi‐NPC catalysts exhibit superior ORR activity and stability to Pt/C catalysts in both acidic (E1/2=0.8672 V) and alkaline (E1/2=0.8663 V) conditions. FeNi‐NPC demonstrated peak power densities in proton exchange membrane fuel cells (PEMFC) of up to 865 mW cm−2, which exceeds the currently reported M‐N/C catalysts. The work presented here will lead to the design of efficient ORR electrocatalysts in PEMFC devices. [ABSTRACT FROM AUTHOR]