Abstract
The 2-D structure of graphene, an allotrope of carbon with remarkable
characteristics, is revolutionizing the technology world. This article
provides a synopsis of three popular methods for graphene synthesis. The
mechanical exfoliation method attempts to separate graphene layers from
bulk graphite and is used for small-scale production. The next method is
the chemical vapor deposition (CVD) synthesis, which uses a reaction
between a gaseous hydrocarbon and a solid substrate to promote graphene
growth. Finally, the modified Hummer’s method involves the use of
oxidizing and reducing agents to obtain graphene oxide (GO) from
graphene flakes under low-temperature conditions from which graphene is
synthesized as the final product.