钴基氧还原电催化材料研究进展

氧还原反应(oxygen reduction reaction，ORR)是能量转换和储存系统的关键电极反应。目前，贵金属基材料，如铂和钯，是ORR最有效的催化剂，但其地球储量稀少、价格昂贵，且抗甲醇和CO性能差。因此，开发新型、低成本、高性能的氧还原电催化剂对能源转化和储存具有重要意义。综述了近年来非贵金属钴(Co)基氧还原电催化材料的研究进展及其性能调控策略，分为Co合金、Co-N-C、Co纳米粒子、Co基氧化物、Co基磷化物和Co基硫化物等多种形式，并对未来开发低成本、高性能的氧还原催化剂进行了展望。

Progress on Co-Based Electrocatalytic Materials for Oxygen Reduction

Oxygen reduction reaction (ORR) is the key electrode reaction in energy conversion and storage system. At present, precious metal based materials, such as platinum and palladium, are the most effective electrocatalysts for ORR, but they are rare in earth reserves, expensive in price, and poor resistance to methanol and CO. Therefore, it is of great significance to develop a new type of electrocatalyst with low cost and high performance for oxygen reduction reaction. The research progress and performance control strategy of non-precious metal Co-based electrocatalytic materials for oxygen reduction are reviewed, such as Co alloys, Co-N-C, Co nanoparticle, Co-based oxide, Co-based phosphide, Co-based sulfide and other various forms. The future development of low-cost and high-performance electrocatalytic materials for oxygen reduction is also prospected.