 The Oxygen Reduction Reaction, ORR, is the core reaction of numerous sustainable energy conversion technologies such as fuel cells and metal-air batteries. It is crucial to develop a cost-effective, highly active, and durable electro-catalysts for ORR to overcome the sluggish kinetics of four electrons' pathway. This article was authored by Qian Ren, Huihuang, Shuefeng Lu, and others.