Abstract
As an emerging material, graphene has become a research hotspot in the field of anti-corrosion because of its excellent chemical inertia and permeability resistance. In this paper, combined with the latest research results, the applications of graphene film and graphene powders in the field of anti-corrosion are discussed more comprehensively. First, the anti-corrosion mechanisms of graphene (mainly including barrier effect, shielding effect, corrosion inhibition synergy, enhancement of coating adhesion, cathodic protection, and self-healing effect) and its corresponding coating preparation methods (graphene film prepared by chemical vapor deposition method and composite coatings prepared with graphene powders) are introduced. Then, the influences of different factors such as defects, conductivity, oxidation degree, flake size, and content of graphene on the anti-corrosion performance are discussed. Finally, various methods are comprehensively compared with each other, and future development is prospected. This paper not only reviews the existing work, but also has a certain reference value for preparing graphene materials with better corrosion resistance in the future.
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