Fig. 2: Physical structure characterizations of Pt/MoO3 and SA-Ru@Pt/MoCx.
a, b TEM and HAADF image of the initial Pt/MoO3. c–e Corresponding EDX elementary mapping of Pt/MoO3. f Illustration of the formation mechanism of SA-Ru@Pt/MoCx. g High-resolution HAADF-STEM image of SA-Ru@Pt/MoCx. h–k Corresponding elemental mappings of SA-Ru@Pt/MoCx.
