Boosting Electrocatalytic Activity of Single Atom Iron Catalysts through Sulfur-Doping Engineering for Liquid and Flexible Rechargeable Zn-air Batteries

A practical strategy is reported to design single-Fe atom decorated S/N-doped C (Fe SAs@S/N–C) catalysts with a high Fe loading of 5.45 wt%. The prepared catalysts exhibit excellent performances for liquid and all-solid-state Zn–air batteries.