Inhibited corrosion-promotion activity of graphene encapsulated in nanosized silicon oxide

• DOI: 10.1039/c5ta04236d
• Publication Date: 2015-07-15T14:30:59Z
• Authors: Wen Sun; Lida Wang; Tingting Wu; Yanqiu Pan; Guichang Liu
• Keywords: Galvanic corrosion; Galvanic cell

The corrosion-promotion activity of graphene is inhibited when encapsulated in insulating SiO₂ because can act as a spacer isolating from the metal substrate so to prevent graphene–metal micro-galvanic corrosion. Incorporating rGO@SiO₂ nanosheets into polymer coating also greatly enhances corrosion resistance coating.