Fe single atoms coupled Fe3C multi-functional catalysts on P, F, N-doped carbon nanotubes for stable Zn-air batteries with ultra-high power densities

Fe-single-atom-coupled Fe 3 C multifunctional catalysts on P-, F-, N-doped CNT deliver comparable OER behavior to RuO 2 , better ORR performance than Pt/C, and better ZAB performance than Pt/C–RuO 2 , due to the nanoarchitecture and abundant active sites.