Structural properties of graphene oxide materials synthesized accordingly to hummers, tour and modified methods: XRD and Raman study

Abstract

Graphene oxide colloidal solutions were synthesized by Hummers and Tour methods and also accordingly to modified protocol. Hydrazine- and microwave-assisted routs of reduction procedure were used for each type of graphene oxides. A detailed comparative study of the structural arrangement was done for all obtained materials by XRD and Raman spectroscopy. The application of modified method for the graphene oxide synthesis which involves increasing the pH of the reaction medium at the stage of graphite oxidation using microwave-assisted reduction procedure allows obtaining reduced graphene oxide with the particles consisting of 2 - 3 graphene layers (particle's thickness is about 0.8 nm and the lateral size of about 7.6 nm).