• 文献标题:   Synthesis of Multilayer Graphene Oxide in Electrochemical Graphite Dispersion in H2SO4
  • 文献类型:   Article
  • 作  者:   YAKOVLEV AV, YAKOVLEVA EV, TSELUIKIN VN, KRASNOV VV, MOSTOVOY AS, VIKULOVA MA, FROLOV IH, RAKHMETULINA LA
  • 作者关键词:   graphite, sulfuric acid, electrochemical synthesi, oxidized graphite, graphene oxide
  • 出版物名称:   RUSSIAN JOURNAL OF APPLIED CHEMISTRY
  • ISSN:   1070-4272 EI 1608-3296
  • 通讯作者地址:   Yuri Gagarin State Tech Univ Saratov
  • 被引频次:   0
  • DOI:   10.1134/S1070427220020093
  • 出版年:   2020

▎ 摘  要

The possibility of electrochemical dispersion of natural graphite powder in 83% H2SO4 was studied to produce multilayer graphene oxide. It has been shown that the decisive effect on the exfoliation of graphite particles is exerted by the processes of intercalation of graphite and the release of gaseous oxygen. It has been established that coarse-grained graphite powders with a particle size exceeding 200 Mm are more susceptible to electrochemical dispersion. The resulting carbon nanostructured materials tend to agglomerate in an aqueous dispersion. During sonication, the particle size of oxidized graphite decreases markedly with the formation of multilayer graphene oxide.