Abstract:
The electric-arc-produced graphene materials were characterized and evaluated by a series of methods such as X-ray photoelectron spectroscopy, Raman spectra, infrared spectroscopy and scanning electron microscope analysis. Results show that the content of C element in graphene is 89.77%, and those of O and N elements are 3.03% and 7.21%. The sample has been identified as multilayer graphene-based Raman spectra G peak and 2D peak position. Adsorption of water in graphene sample is also detected by infrared spectroscopy. The layer number and size of graphene layer structure are observed through microscopic observation. This paper summarized a series of test schemes to characterize graphene,which provides a basis of evaluation for the dissemination and application of graphene in composites.