Chemical and Electrochemical Synthesis of Graphene Oxide - A Generalized View
Graphene oxide (GO) is a water soluble carbon material in general suitable for applications in electronics, environment, or biomedicine. GO is yielded by oxidation of abundantly available graphite turning black graphite into water-dispersible single layers of functionalized graphene-related materials. Thereby, oxidation gives chemicals access to the complete surface area of GO. Those fundamentals led to a rich chemistry of GO. Here, we review the progress made in controlling the synthesis of GO, introduce the current structure models used to explain phenomena and present versatile strategies to functionalize the surface of GO. Finally, an outlook is given for future directions.