Colloidal Suspensions of Highly Reduced Graphene Oxide in a Wide Variety of Organic Solvents

We report that homogeneous colloidal suspensions of chemically modified graphene sheets were readily produced in a wide variety of organic solvent systems

Sungjin Park; Jinho An; Inhwa Jung; Richard D. Piner; Sung Jin An; Xuesong Li; Aruna Velamakanni; Rodney S. Ruoff

2009

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  • The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online
  • We report that homogeneous colloidal suspensions of chemically modified graphene sheets were readily produced in a wide variety of organic solvent systems
  • Two different sets of solubility parameters are used to rationalize when stable colloidal suspensions of graphene oxide sheets and, separately, of reduced graphene oxide sheets in a given solvent type are possible and when they are not
  • As an example of the utility of such colloidal suspensions, “paperlike” materials generated by very simple filtration of the reduced graphene oxide sheets had electrical conductivity values as high as 16 000 S/m
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