Corrosion Control by Carbon-Based Nanomaterials: A Review

Abstract

Corrosion has always been a major issue that restricts social development. The global annual corrosion cost is 2.5 trillion U.S. dollars (approximately 3.4% of the world's gross domestic product). Corrosion can also cause resource waste, environmental pollution, and major safety accidents. In recent years, researchers have utilized various corrosion prevention and control technologies and materials to protect metals and other materials from corrosion and achieved gratifying results. Among them, carbon materials have been applied in anticorrosion treatment due to their unique physical and chemical properties, low price, and environmental friendliness. This review mainly summarizes the structure of carbon-based nanomaterials (such as graphene, graphene oxide, reduced graphene oxide, carbon nanotubes, carbon quantum dots, carbon fiber, graphite, etc.) and their applications in corrosion prevention as coating, corrosion inhibition, photocathodes, etc. It focuses on the current research status and corrosion resistance mechanism of carbon materials such as graphene, graphene oxide, carbon quantum dots, and carbon nanotubes in the field of corrosion prevention and control.

Effects of Nanoadditives on the Anticorrosion Performance of Nanocomposite Coatings: A Review

“…Consequently, straightforward graphene doping is relatively infrequent, with most researchers choosing to introduce GO or partially reduced GO. The surface of GO contains a large amount of oxygen-containing functional groups, which can be mixed with water-based resins to improve the anticorrosion performance of the coating . rGO sheets boast hydroxyl, carboxyl, and epoxy functional groups, affording the opportunity for hybridization with other nanomaterials via π–π and hydrogen-bonding interactions .…”

Nonionic Emulsifier with Lipophilic–Hydrophilic–Lipophilic Structure for Preparing Waterborne Epoxy Coatings with High Corrosion Resistance and Thermal Stability

“…However, the more readily formed polar channels by those hydrophilic groups inevitably decrease the corrosion resistance of the WEP coatings . Although various methods have been attempted to improve the anticorrosion performance of WEP coatings by adding anticorrosion fillers, such as corrosion inhibitors, nanomaterials, and microcapsules, the high costs of those fillers and poor compatibility of resins with those fillers constrain their extensive applications. − From this point of view, designing an inherent WEP with high anticorrosion performance is an effective approach to solve this problem.…”