Graphene has been around for a little while now. Little take up because it's hard to manufacture. They're working on it at a lab scale to my mind along with thin film solar developments pose a tantalising chance to tackle global CO2. I suspect military applications will be the first. I am invested in Cu don't think those two will upset the supply demand situation quickly enough nor will hydrogen cells. (I looked hard at graphene when I was doing my MSc in Mineral Economics 2012 now nearly a decade ago).
