The structure of thermally reduced graphene oxide

—The paper focuses on the description of the reduced graphene oxide (rGO) structure. This material is obtained from a multistage production process. Each stage of these stages has a large impact on the material structure (the number and type of functional groups, number of defects or size of flakes), which in turn affects its properties. We would like to visualize reduced graphene oxide, by a diagram showing its atomic structure, by imaging it with scanning electron microscopy (SEM) and by atomic force microscopy (AFM). In the paper, an elementary composition of selected elements and data obtained from the X-ray photoelectron spectroscopy technique (XPS) will be also presented.