This is a massive graphene synthesized with InALA process without using substrate/catalyst. It is commercially named “GRAPHENE FLOWER” (registered trademark), since its shape immediately after synthesis looks like flowers. Each piece with the appearance of a flower petal is graphene piece. This is a directly synthesized graphene material based on bottom-up system, not that made by defoliation from graphite, etc. nor that made by expansion from a graphite intercalation compound. InALA process enables the direct synthesis of graphene with between monolayer to several layers.
TEM and electron diffraction Figure: TEM and electron diffraction
Fig. The difference between Graphite and Graphene Flower