Abstract:

Graphene has a unique two-dimensional crystal structure and many excellent features,such as extraordinary mech-anical strength,high charge carrier mobility,and high optical transparency.Graphene,which possesses remarkable mechani-cal,electrical,and optical properties,has become a research hotspot in the fields of chemistry,physics and materials science.Combined with domestic and foreign researches in recent years,three main methods for preparing graphene,including mech-anical stripping,chemical exfoliation and chemical vapor deposition were reviewed.At the same time,the advantages and disadvantages of these methods were discussed.Finally,the research progress of application of graphene was introduced and its future development was prospected.

Key words: graphene preparation, chemical vapor deposition, application research progress