Pt基有序金属间化合物氧还原催化剂研究进展

Recent Advances in Pt-Based Ordered Intermetallic Catalysts for Oxygen Reduction Reaction

质子交换膜燃料电池作为新型绿色能源技术,在未来电动汽车及分散式电站等领域将有非常广阔的应用前景。但目前制约燃料电池商业化的主要瓶颈是其高成本和低寿命,而贵金属氧还原催化剂的使用是成本的主要来源,也是决定燃料电池性能的关键因素。本文综述了一种新型的氧还原催化剂——铂基金属间化合物,介绍其结构特性以及过渡金属组成对氧还原催化反应活性和稳定性的影响,最后对铂基催化剂的发展给出了展望。

Proton exchange membrane fuel cells(PEMFCs),as a new type of environmentally friendly tech-nology,will have widespread applications in the field of automobiles,distributed power stations and so on.However,high cost and low stability are the main issues,which block the further com-mercialization of PEMFCs.The high cost originates from the usage of Pt noble metal as oxygen re-duction reaction(ORR)catalysts,which is the crucial factor on the performance of fuel cell.Herein,we review a novel kind of ORR catalysts,intermetallic compounds.The specific structural proper-ties and the effect of transition metals composition on the catalytic activity and stability are in-troduced.Finally,the perspective on the development of Pt-based intermetallic catalysts and their application in PEMFCs are provided.