A Review of Graphene-Based Materials for Marine Corrosion Protection

Abstract

Graphene-based anti-corrosion materials exhibit excellent chemical inertness and impermeability and are promising and emerging materials for the protection of metals. In this review, the recent progress in the production of graphene-based materials for protection against marine corrosion is discussed. Major mechanisms of marine corrosion and strategies for corrosion protection are illustrated. The properties and methods used for the preparation (micromechanical stripping method and chemical vapor deposition) of graphene are introduced. Two fabrication strategies for graphene-based corrosion protection materials are presented. For pure graphene films, fewer defects and low conductivity lead to the enhancement of anti-corrosion properties. For graphene composite coatings, improving the dispersibility of graphene in the coating matrix and strengthening the durability render graphene coatings to be more effective for marine corrosion protection. Insulation is highly desirable for avoiding electrochemical reactions to protect against heavy marine corrosion in the later stages. Finally, we provide perspectives on the future of graphene-based materials for marine corrosion protection, anticipating that a properly prepared graphene composite coating can serve as a long-term anti-corrosive material for marine applications.