Radio frequency heating and reduction of Graphene Oxide and Graphene Oxide - Polyvinyl Alcohol Composites Academic Article uri icon


  • Graphene oxide (GO) is one of the most frequently-used graphene-family materials, but it must often be reduced in order to restore electrical conductivity for the target applications. We have demonstrated the use of non-contact fringing field RF applicators to rapidly heat and reduce GO, both in its neat form and inside a polymer matrix like polyvinyl alcohol (PVA). For this study, GO and GO-PVA films were prepared by the vacuum filtration method. The results demonstrate quick non-contact heating of GO and GO-PVA composite films by application of RF fields. Heating rates as high as 10.9 C/s and 1.5 C/s have been observed for GO and GO-PVA, respectively. RF-reduced GO and GO-PVA samples have shown a reasonable conductivities of 10^2 S/m and 10^-1 S/m, respectively. In addition, C/O ratio has increased from 2.44 to 5.22 when GO is exposed to RF waves which confirm that GO samples are reduced by the RF treatment. Unlike time-consuming or hazardous conventional reduction methods, RF resistively heats GO with electric fields in seconds to form reduced GO.

published proceedings


altmetric score

  • 0.5

author list (cited authors)

  • Debnath, D., Zhao, X., Anas, M., Kulhanek, D. L., Oh, J. H., & Green, M. J.

citation count

  • 12

complete list of authors

  • Debnath, Debopamaa||Zhao, Xiaofei||Anas, Muhammad||Kulhanek, Devon L||Oh, Ju Hyun||Green, Micah J

publication date

  • November 2020

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