凯发

The talk will provide a quick overview of research activities in the speakers group, and then focus on the remarkable corrosion resistance due to ultra-thin graphene coating.

Monolayer or a few atomic layer thick graphene coatings on metals (Figure (left)) have been shown to improve their corrosion resistance by nearly two orders of magnitude (Figure (right)).  Though there are very few studies reported on the topic of corrosion resistance due to graphene coating, there is still considerable variability in the degree of improvement.  For example, improvement in aqueous corrosion resistance of copper due to graphene coating is reported to vary from insignificant to nearly 2 orders of magnitude, whereas the improvement for nickel can be in excess of an order of magnitude. This presentation will review the most recent research on graphene that has been claimed as ‘the thinnest known corrosion-protecting coating’, and examine the potential application of such disruptive approach to corrosion resistance of common engineering alloys such as mild steels.