Comparative Studies on Three Kinds of Reductants Applicable for the Reduction of Graphene Oxide

그래핀 옥사이드의 환원 반응에 적용되는 3종류 환원제에 관한 비교 연구

  • Received : 2014.12.01
  • Accepted : 2014.12.24
  • Published : 2015.02.10


We conducted reduction reactions of graphene oxide (GO) using three selected reductants. The conductivity and solubility of three kinds of the reduced graphene oxides (RGOs) were examined based on the degree of reduction. When the ethylene glycol (EG) was used as a reductant, the reduction reaction did not sufficiently progress and as a result the conductivity of RGOs was observed to be relatively low. For RGOs made by hydrazine (HZ) and thiourea dioxide (TU), we observed no significant differences in the degree of the reduction, conductivity and dispersity in water. However, RGO prepared by TU showed an exceptionally good solubility in N-methylpyrrolidone, and the solution was stable for more than 4 months.


graphene oxide;reduced graphene oxide;reductant;thiourea dioxide


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Supported by : 한국산업기술평가관리원(KEIT)