Chainmail catalysts: Carbon-encapsulated FeNi alloys for enhanced oxygen electrocatalysis

Rapid growth in global energy demand has caused massive depletion of traditional fossil fuels and serious environmental problems, and there is no doubt that the development of efficient energy storage and conversion technologies is an essential field of research. Rechargeable Zn-air batteries have attracted great research interest due to their high energy density, low cost, environmental friendliness, and safety.