fig4
From: Two-dimensional materials: synthesis and applications in the electro-reduction of carbon dioxide
Figure 4. Synthesis of 2D metal oxide nanosheets by the hydrothermal method. (A) Schematic diagram of the synthesis route. TEM images of (B) Co3O4, (C) TiO2, (D) ZnO, and (E) WO3[79]. 2D: 2-dimensional; TEM: transmission electron microscopy.
