▎ 摘　　要

NOVELTY - A graphene oxide-doped passivating agent comprises 10-80 ml/l citric acid, 20-80 ml/l hydrogen peroxide, 2-5 g/l barium nitrate, 0.01-0.1 g/l sodium lauryl sulfate, 0.1-1 ml/l triethanolamine, 1-5 g/l graphene oxide and balance amount of deionized water. USE - The graphene oxide-doped passivating agent is useful for passivating stainless steel surface (claimed). ADVANTAGE - The graphene oxide-doped passivating agent is environmentally-friendly, and has excellent anticorrosion property, oxidation resistance and stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the graphene oxide-doped passivating agent.