OI and OII belong to the water molecules or hydroxyl groups adsorbed on the surface. The binding energy peak of lattice oxygen (OIII) at 529.88eV is the characteristic peak of Co3O4, which further confirms the existence of Co3O4.
OI and OII belong to surface adsorption of water molecules or hydroxyls. The combined energy peak of lattic oxygen (OIII) at 529.88eV is the characteristic peak of Co3O4, which further confirms the existence of Co3O4.
OI and oii belong to surface adsorbed water molecules or hydroxyl groups. The binding energy peak of oiii at 529.88ev is the characteristic peak of Co3O4, which further confirms the existence of Co3O4.<br>