Improved synthesis of graphene oxide.

  title={Improved synthesis of graphene oxide.},
  author={Daniela C. Marcano and Dmitry V. Kosynkin and Jacob M Berlin and Alexander Sinitskii and Zhengzong Sun and Alexander S Slesarev and Lawrence B. Alemany and Wei Lu and James M. Tour},
  journal={ACS nano},
  volume={4 8},
An improved method for the preparation of graphene oxide (GO) is described. Currently, Hummers' method (KMnO(4), NaNO(3), H(2)SO(4)) is the most common method used for preparing graphene oxide. We have found that excluding the NaNO(3), increasing the amount of KMnO(4), and performing the reaction in a 9:1 mixture of H(2)SO(4)/H(3)PO(4) improves the efficiency of the oxidation process. This improved method provides a greater amount of hydrophilic oxidized graphene material as compared to Hummers… CONTINUE READING
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