ABSTRACT
Emerging graphene is of considerable interest in scientic research because of its fascinating physical and chemical properties such as high carrier mobility and large theoretical specic surface area. Various approaches have been used to produce graphene materials. Each method has its own advantages and disadvantages in terms of the resultant material quality and property. For example, the sole scalable production has been realized in producing chemically converted graphene using an oxidation method, but the superior properties of pristine graphene are lost due to structural damage. Direct liquid-phase exfoliation of graphite powder in organic solvents results in high-quality graphene layers but with limited yield. Here, we review a newly developed chemical method to produce pure graphene layers on a large scale by employing exfoliation of graphite via intercalation. The process for fabricating few-layer graphene preserves the basal plane structure with negligible functional groups as compared to the conventional chemical methods. The structure, properties, and potential applications of graphene will be presented and discussed. This simple and scalable technique for high-quality graphene
fabrication offers considerable potential for mass production and practical applications. Graphene layers produced by other procedures are also included for comparison.
