A Simple Route towards High-Concentration Surfactant-Free Graphene Dispersions

Jiantong Li; Fei Ye; Sam Vaziri; Mamoun Muhammed; Max C. Lemme; Mikael Östling

doi:10.1016/j.carbon.2012.03.011

A Simple Route towards High-Concentration Surfactant-Free Graphene Dispersions

Materials Science 2012-05-10 v1

Authors: Jiantong Li , Fei Ye , Sam Vaziri , Mamoun Muhammed , Max C. Lemme , Mikael Östling

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

A simple solvent exchange method is introduced to prepare high-concentration and surfactant-free graphene liquid dispersion. Natural graphite flakes are first exfoliated into graphene in dimethylformamide (DMF). DMF is then exchanged by terpineol through distillation, relying on their large difference in boiling points. Graphene can then be concentrated thanks to the volume difference between DMF and terpineol. The concentrated graphene dispersions are used to fabricate transparent conductive thin films, which possess comparable properties to those prepared by more complex methods.

Keywords

graphene dispersion solvent exchange high-concentration surfactant-free transparent conductive thin film exfoliation terpineol

Cite

@article{arxiv.1203.1884,
  title  = {A Simple Route towards High-Concentration Surfactant-Free Graphene Dispersions},
  author = {Jiantong Li and Fei Ye and Sam Vaziri and Mamoun Muhammed and Max C. Lemme and Mikael Östling},
  journal= {arXiv preprint arXiv:1203.1884},
  year   = {2012}
}

Comments

9 pages, 3 figures

A Simple Route towards High-Concentration Surfactant-Free Graphene Dispersions

Abstract

Keywords

Cite

Comments

Related papers