Investigation of the usability of nitric acid electrolyte in graphene production by electrochemical method

Abstract

Electrochemical exfoliation method, which is one of the methods of producing graphene, is a suitable technique for the mass production of graphene in the industrial sense. However, the correct selection of electrochemical process inputs (electrolyte, applied voltage, etc.) is very important for graphene formation. Otherwise, thick fragmented graphites are formed. In this study, a method for producing ultrathin layer graphene using dilute nitric acid has been presented. The properties of the produced graphene were characterized. Structural analysis was done with X-Ray diffraction device, Raman Spectroscopy, energy dispersive x-ray spectrometry. The morphological structure of the surface was performed using scanning electron microscopy. The data obtaining were discussed together with the literature and the results were evaluated. In addition to being a good electrolyte in the production of graphene, nitric acid is determined to be a good candidate for the production of graphene oxide in one step with this method with its high oxidation level.

Keywords:

• Graphene
• exfoliation graphene
• intercalation graphene
• nitric acid electrolyte
• graphene nanosheet