Graphene, method and apparatus for preparing graphene

  • US 9,738,528 B2
  • Filed: 08/20/2014
  • Issued: 08/22/2017
  • Est. Priority Date: 08/21/2013
  • Status: Active Grant
First Claim
Patent Images

1. A method for preparing a graphene comprising:

  • forming a mixed solution including a graphite oxide, a solvent, a first oxidizing agent; and

    a sulfur compound or a nitrogen compound;

    forming the graphene by reacting the mixed solution under a subcritical condition or a supercritical condition of the solvent; and

    recovering the graphenewherein the sulfur compound is represented by the following Chemical Formula 1, and the nitrogen compound is represented by the following Chemical Formula 2;


    HO-A1-Q-A2-OH 



    [Chemical Formula 1]in Chemical Formula 1, A1 and A2 are each independently linear or branched C1-C10alkylene group or C6-C20 arylene group, and Q is a sulfur atom (—

    S—

    ) or a sulfone group(—

    (O═

    S═

    O)—

    ), and

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×