Researchers from the UK and Sweden have investigated how graphene nanoribbons grow from an anthracene polymer on a gold substrate, using simluations on a supercomputer. They discovered that in the most likely nanoribbon growth process, the gold substrate acts as more than just a support where the reaction can take place. The gold actually catalyzes the reaction.

It turns out that the graphene nanoribbons grow in a way that resembles the domino effect.

read more over at PhysOrg.