fig8

Figure 8. (A) Schematic diagram for the synthesis of Sb@Void@GDY nanoboxes. (B) (a) Raman spectrum and (b) XPS spectrum of Cu₂O@GDY NCs. (c) SEM image, (d) TEM image, (e) High-resolution TEM image, and (f-h) Elemental mapping of yolk-shell Sb@Void@GDY NBs. (C) Rate capability and extended cycling comparison of Sb@Void@GDY and Sb@C NB electrodes. (D) (a) Schematic layout of in-situ TEM device. (b) Schematic of structural changes of hollow yolk-shell Sb@Void@GDY NBs during (de)sodiation. (c-t) In-situ TEM images from a time-lapse video of the first four (de)sodiation cycles. Reproduced with permission from^[115]. Copyright © 2023 American Chemical Society.