Pearl Necklace Fibrous Carbon Sharing Fe–N/Fe–P Dual Active Sites as Efficient Oxygen Reduction Catalyst in Broad Media and for Liquid/Solid‐State Rechargeable Zn–Air Battery

Flexible nanofiber assembled zinc–air battery: carbonization–phosphidation of metal–organic framework (MOF)/polyacrylonitrile nanofibers gives rise to a pearl necklace fibrous carbon catalyst with Fe-N/Fe-P dual active sites (Fe-P/NHCF). This strategy puts forward a protocol to develop tailored geometries with dual active sites for the oxygen reduction reaction in alkaline/acid media, which is expected to promote devices of practical significance. More details can be found in article number 1901263 by Rui Liu and Mengchen Wu.