One way to make graphene is to heat silicon carbide, SiC, causing the more volatile elemental carbon to undergo sublimation, after which it is collected and purified.

Name: One way to make graphene is to heat silicon carbide, SiC, causing the more volatile elemental carbon to undergo sublimation, after which it is collected and purified.
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Graphene is made by heating silicon carbide, but it is the silicon that sublimates, leaving behind a layer of carbon atoms that form graphene.

One Way to Make Graphene Is to Heat Silicon Carbide