Fig. 2: HAADF and elemental mappings of Ga2O3@metal oxides.

HAADF-energy disperse spectroscopy (EDS) images of the Ga2O3@quinary metal oxide (HEO)(MnFeCoNiZn), Ga2O3@quaternary metal oxides (MnFeCoNi, FeCoNiZn), Ga2O3@ternary metal oxides (MnCoNi, FeCoNi), Ga2O3@binary metal oxides (MnFe, FeNi), and Ga2O3@unary metal oxides (Ni, Mn). All the scale bars are 100ānm. All the TEM samples are prepared by using powerful ultrasound to dislodge particles grown on CP. Light blue, dark blue, green, purple, and blue-violet collectively represent Mn, Fe, Co, Ni, and Zn; yellow represents O.