▎ 摘　　要

Employing the first principle calculation, we investigate oxygen adsorption and incorporation into the subsurface of the graphene-coated Cu(111) considering various oxygen coverages. The obtained binding energies for different configurations reflect the fact that addition of graphene monolayer in both adsorptive and incorporative sites remarkably weakens the nature of binding, thus results in lower probability for oxygen permeation which is sensitive to the coverage. Additionally, comparison of potential averages of different mid-layer and over-layer graphene configurations confirms that graphene coating strongly increases the corrosion resistance of Cu surface in good agreement with available electrochemical measurements. Our results might be generalized and validated to designing new anti-corrosion coatings for other transition metal surfaces.