Graphene-coated Cu and Cu/Ni alloys demonstrate exceptional oxidation resistance. This study shows that graphene films grown by chemical vapor deposition (CVD) effectively protect the surfaces of Cu and Cu/Ni alloys from oxidation in air at 200°C for up to 4 hours and from hydrogen peroxide. The protection is attributed to graphene's impermeability and chemical stability, which prevent oxidation and maintain the metal's physical properties. SEM, Raman spectroscopy, and XPS analyses confirm that the metal surfaces remain unoxidized even after prolonged exposure. Graphene also provides effective resistance against hydrogen peroxide. The study highlights that graphene can be used as a protective coating for any metal that catalyzes graphene growth. The results show that graphene-coated Cu and Cu/Ni alloys exhibit significantly better oxidation resistance compared to uncoated alloys. The protection mechanism is due to graphene's ability to act as a diffusion barrier and its chemical inertness. The study also discusses the potential of graphene as a passivation layer for various applications, including nano-electronic devices. However, the protection technique is limited by its deactivation after mechanical damage. The study concludes that graphene is an excellent candidate for a novel protection layer due to its unique physical and chemical properties. The results demonstrate that graphene can be used as a passivation layer for a wide range of applications, including corrosion protection. The study also highlights the importance of further research into graphene growth and transfer techniques to enhance its protective properties.Graphene-coated Cu and Cu/Ni alloys demonstrate exceptional oxidation resistance. This study shows that graphene films grown by chemical vapor deposition (CVD) effectively protect the surfaces of Cu and Cu/Ni alloys from oxidation in air at 200°C for up to 4 hours and from hydrogen peroxide. The protection is attributed to graphene's impermeability and chemical stability, which prevent oxidation and maintain the metal's physical properties. SEM, Raman spectroscopy, and XPS analyses confirm that the metal surfaces remain unoxidized even after prolonged exposure. Graphene also provides effective resistance against hydrogen peroxide. The study highlights that graphene can be used as a protective coating for any metal that catalyzes graphene growth. The results show that graphene-coated Cu and Cu/Ni alloys exhibit significantly better oxidation resistance compared to uncoated alloys. The protection mechanism is due to graphene's ability to act as a diffusion barrier and its chemical inertness. The study also discusses the potential of graphene as a passivation layer for various applications, including nano-electronic devices. However, the protection technique is limited by its deactivation after mechanical damage. The study concludes that graphene is an excellent candidate for a novel protection layer due to its unique physical and chemical properties. The results demonstrate that graphene can be used as a passivation layer for a wide range of applications, including corrosion protection. The study also highlights the importance of further research into graphene growth and transfer techniques to enhance its protective properties.