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Graphene and Its Applications

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Graphene and Its Applications ( graphene-and-its-applications )

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Graphene and Its Derivatives: Synthesis and Applications layers of graphene in graphite are held together by van der Waals forces. GO are synthesized mostly based on widely reported Hummers method in which graphite is oxidized by a solution of potassium permanganate in hydrogen tetraoxosulfate (IV) acid [15]. The diagram in Figure 2 illustrates the processes and stages involved in moving from graphite to graphene, graphene to graphene oxide, and graphene oxide to reduced graphene oxide [14, 16]. Many scientists are confused about the difference between carbon derivatives (Figure 3). Graphene oxide is dispersible in water and other organic solvents like etha- nol, 1-propanol, acetone, methanol, ethylene glycol, pyridine, etc. as well as in different matrixes. This property of GO was due to the presence of the oxygen functionalities. Figure 2. Stages of synthesis of GO and rGO. Reproduced from Ref. [8]. Figure 3. Cycle synthesis of graphene/GO/rGO. Reproduced from Ref. [33]. 4

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