Exfoliation of graphite into graphene in aqueous solutions of inorganic salts.

  title={Exfoliation of graphite into graphene in aqueous solutions of inorganic salts.},
  author={Khaled Parvez and Zhong-Shuai Wu and Rongjin Li and Xianjie Liu and Robert Graf and Xinliang Feng and Klaus M{\"u}llen},
  journal={Journal of the American Chemical Society},
  volume={136 16},
Mass production of high-quality graphene sheets is essential for their practical application in electronics, optoelectronics, composite materials, and energy-storage devices. Here we report a prompt electrochemical exfoliation of graphene sheets into aqueous solutions of different inorganic salts ((NH4)2SO4, Na2SO4, K2SO4, etc.). Exfoliation in these electrolytes leads to graphene with a high yield (>85%, ≤3 layers), large lateral size (up to 44 μm), low oxidation degree (a C/O ratio of 17.2… CONTINUE READING
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