fig15

Figure 15. (A) Schematic of the preparation process of V₂C@Se. (B) XPS spectra of Se 3d in V₂C@Se during charging and discharging process. This figure is quoted with permission from Lv et al. Copyright (2022) Elsevier^[122]. (C) Theoretical simulation analysis with AlCl^-₄, Cl^-, and Al³⁺ entering CoSe₂. This figure is quoted with permission from Yuan et al. Copyright (2023) John Wiley and Sons^[124]. (D) Schematic illustration of the Ti₃C₂/CoSe₂ synthesis and electrochemical performance. This figure is quoted with permission from Liu et al. Copyright (2021) Elsevier^[125]. (E) Schematic illustration of the NCSe@TiVC heterostructure. This figure is quoted with permission from Zhang et al. Copyright (2022) John Wiley and Sons^[126].