fig6
Figure 6. (A) Illustration and (B) chemical structure of Co-CoO/NPCF[120]; (C) Graphical abstract of h-Ti3C2Tx@Co-NCNT[121]; (D) Illustration and (E) ZABs performance of Co/CoO@HNC[122]; (F) Schematic illustrating the preparation of the P-CoSe2/C@CC catalyst; (G) SEM images of Co-MOF@CC, Co/C@CC, CoSe2/C@CC, and P-CoSe2/C@CC[124]. NPCF: N-doped porous carbon foam; ZABs: zinc-air batteries; ORR: oxygen reduction reaction; OER: oxygen evolution reaction.
