The highly sluggish kinetics of oxygen reduction/evolution reactions (ORR/OER) at air
cathodes lead to problems such as low power density and unsatisfactory cycling life with
rechargeable Zn–air batteries (RZABs). To engineer the reaction kinetics at the air cathodes,
a hydrophobic–aerophilic strategy is developed to fabricate a self‐supported air cathode
based on CoS/Fe3S4 nanoparticles encapsulated in S, N co‐doped carbon plate arrays
(CoS/Fe3S4@ SNCP). It is experimentally shown that the in situ growth of bimetallic sulfides …

In article number 2204245, Yong Hu and co-workers report an advanced air cathode made
of CoS/Fe 3 S 4 grown on S, N co-doped carbon plate arrays with hydrophobic–aerophilic
properties for high-performance rechargeable Zn–air batteries. The research results show
that Fe 3 S 4 as hydrophobic-aerophilic sites can repel water molecules to create abundant
solid–liquid–gas three-phase reaction interfaces, which promote the diffusion of reactive
molecules/ions across the interface and oxygen adsorption.