Zinc-air battery is one of the most promising next-generation energy conversion and storage systems. Green and low-cost catalysts with high oxygen reduction reaction (ORR) catalytic activity are desired to meet the requirements of Zinc-air batteries. Herein, poly-active centric Co₃O₄-CeO₂/Co-N-C (ketjenblack carbon) catalysts were prepared by a facile method. The Co₃O₄ and CeO₂ nanoparticles are uniformly anchored on the surface of Co and N doped carbon support. The half-wave potential of Co₃O₄-CeO₂/Co-N-C in the rotating disk electrode testing is close to that of Pt/C. The Zn-air battery using Co₃O₄-CeO₂/Co-N-C as the cathode catalyst can provide a high specific capacity of 728 mA h g⁻¹ at 20 mA cm⁻² and maintain a stable discharge voltage. The remarkable catalytic performance is mainly attributed to the synergistic effect among Co₃O₄, CeO₂ and Co-N-C, the outstanding electrical conductivity and the large surface area. Benefitting from the high catalytic activity, environmental friendliness and the facile synthesis process, Co₃O₄-CeO₂/Co-N-C catalyst lends itself well to a great prospect in the application of metal-air batteries.

锌空气电池是最有前途的下一代能量转换和存储系统之一。需要具有高氧还原反应（ORR）催化活性的绿色和低成本催化剂以满足锌空气电池的要求。在此，通过简便的方法制备了多活性中心Co ₃ O ₄ -CeO ₂ / Co-NC（科琴黑炭）催化剂。Co ₃ O ₄和CeO ₂纳米颗粒均匀地锚固在Co和N掺杂的碳载体表面上。转盘电极测试中Co ₃ O ₄ -CeO ₂ / Co-NC的半波电势接近于Pt / C。使用Co的锌空气电池₃ O ₄ -CeO ₂ / Co-NC作为阴极催化剂可以在20 mA cm ^{-2的条件下}提供728 mA hg ^-1的高比容量，并保持稳定的放电电压。优异的催化性能主要归因于Co ₃ O ₄，CeO ₂和Co-NC的协同作用，出色的电导率和较大的表面积。Co ₃ O ₄ -CeO ₂ / Co-NC催化剂具有高催化活性，环境友好和易于合成的优点，因此在金属空气电池的应用中具有广阔的前景。