fig10

Figure 10. (A) Synthesis path diagram of N-Co₉S₈/Ni₃S₂/NF^[122]; The ball-and-bat model of H₂O adsorbed on (B) Co-NiOOH, (C) Cu-Co-NiOOH, (D) Fe-Co-NiOOH, (E) Zn-Co-NiOOH; (F) Adsorption free energy bar diagram of H₂O on Co NiOOH, Fe-Co-NiOOH, Cu-Co-NiOOH, and Zn-Co-NiOOH; (G) Schematic diagram of calculated state density of Co NiOOH, Fe-Co-NiOOH, Cu-Co-NiOOH, and Zn-Co-NiOOH^[123].