
Graphene is a two-dimensional layer of carbon atoms. It is arranged in the form of a honeycomb lattice. Graphene has attracted significant attention in the coatings industry due to its unique electronic, optical, and mechanical properties. Graphene nanocoatings play an important role in the development of new and advanced protective coatings due to their chemical resistance, gas impermeability, adsorption capacity, anti-bacterial properties, mechanical strength, lubricity, and thermal stability. Graphene nanocoatings are hydrophobic, conductive, and chemically resistant; hence, the usage of these nanocoatings is expected to increase significantly in the near future. Hydrophobic graphene nanocoatings are used in ship hulls, glass surfaces, and textiles. Graphene nanocoatings can act as protective coatings with advanced properties. Besides these applications, graphene nanocoatings are used in more efficient and flexible solar cells, nanoelectronic devices, supercapacitors, high sensitivity gas sensors, molecular separators, and medical implants.