Abstract:

Graphene has unique structure and excellent performance，and its preparation methods are presented. The emphasis is focused on the major doping methods of graphene nanocomposites，such as element doping methods，including non-metallic elements and metallic elements doping methods，compounds doping methods and carbon materials doping methods. These nanocomposite materials are widely used，especially in the supercapacitor，sensor，hydrogen storage，and biomedical areas. Some problems about the processing of grapheme are presented，such as easily getting folded，instability of dispersion and so on. The future trend of application is discussed，for example magnetism and optical property.