Nitrogen doped graphene material and preparation method thereof

Nitrogen doped graphene material and preparation method thereof

CN
  • CN 102,757,029 B
  • Filed: 04/26/2011
  • Issued: 11/05/2014
  • Est. Priority Date: 04/26/2011
  • Status: Active Grant
First Claim
Patent Images

1. a preparation method for nitrogen-doped graphene material, is characterized in that, the method comprises the steps:

  • S21, graphite oxide is added to the water, ultrasonic dispersion 0.5~

    2h, obtains graphene oxide solution;

    In S22, the graphene oxide solution that obtains toward step S21, add soluble ammonium salts solution, stir, obtain mixing solutions;

    Solvent in S23, removal step S22 gained mixing solutions, obtains solid mixture;

    S24, the solid mixture in step S23 is placed at 550~

    1000 ℃

    to insulation calcining 0.5~

    5h, cooling, obtain described nitrogen-doped graphene material;

    In described solubility solution, the concentration of ammonium salt is 10-50wt%;

    In described step S24, described solid mixture is incubated calcining in oxygen-free atmosphere.

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