Synthesis of Fe3C@Porous Carbon Nanorods via Carbonization of Fe complexes for Oxygen Reduction Reaction and Zn-air Battery
Fe-based electrocatalysts on carbon substrate was consider one kind of candidate to apply on Zn-air battery due to their ORR performance. Herein, unique Fe3C@N-doped porous carbon nanorods are synthesized using a soft template method and carbonization. The structural is proved as porous hetero-structure which brings advantages and effective electrocatalysis performance on oxygen reduction reaction, providing broad prospects for the development of non-precious metal electrocatalysts and metal-air batteries. The oxygen reduction reaction performances on 0.83 V which is closed to commercial Pt/C catalysts. Using the as-prepared Fe3C@N-doped porous carbon nanorods, the open pertentail and power density of Zn-air battery is measured as 1.42 V and 126.4 mW cm-2, which is better than that of the commercial Pt/C. This work presents a novel strategy to prepare Fe3C@N-doped porous carbon nanorods, which can be used as the highly effective oxygen reduction reaction catalyst for Zn-air battery.