fig12

Figure 12. (A) In-situ XRD during 1st and 2nd charge-discharge cycles, (B) atomic structure model, (C) density of states, (D) Na⁺ ions adsorption energies, and (E) diffusion energy barriers of Na⁺ ions of NiCoSe₂ and CoSe. (F) Top/side view of most stable adsorption sites, (G) charge density differences of each structure and (H) simulated density of states of VS₄/SnS₂/MXene, VS₄/MXene and SnS₂/MXene. This figure is adapted from Ref.^[123,124] Copyright permission 2024 Elsevier.