fig6

Figure 6. (A) (a) TEM image of the hybrid nanosheets; (b) ORR and OER polarization curves; (c) Discharge and charge polarization curves of the ZABs^[119]. Copyright 2018, Wiley-VCH. (B) (a) SEM image of CoO NSs; (b) ORR polarization curves of pristine CoO NSs, CoO NSs with different Ni dopant concentrations and Pt/C; (c) Polarization curves and corresponding power density plots^[43]. Copyright 2018, Wiley-VCH. (C) (a) TEM image of NiCo_2.148O₄ PNSs; (b) ORR polarization curves of Pt/C, Ir/C, NiCo_2.148O₄, NiCo_2.150O₄, and NiCo_2.137O₄ PNSs; (c) Discharge voltage curve corresponding power density plot of NiCo_2.148O₄, NiCo_2.150O₄, and NiCo_2.137O₄ PNSs^[49]. Copyright 2020, Wiley-VCH. (D) (a) SEM image of S-LDH/NG; (b) ORR and OER polarization curves of S-LDH/NG, LDH/NG, Pt/C + IrO₂, and NG; (c) Charge/discharge polarization curves and power density plots of the S-LDH/NG- and Pt/C+IrO₂-based ZABs^[51]. Copyright 2023, Wiley-VCH.