Formation of highly stable dispersions of silane-functionalized reduced graphene oxide

Shifeng Hou, Shujun Su, Marc L. Kasner, Pratik Shah, Krutika Patel, Clemonne John Madarang

Research output: Contribution to journalArticlepeer-review

223 Scopus citations


A method was developed to chemically functionalize graphene sheets by silylation. The graphene oxide sheets were silanized with N- (trimethoxysilylpropyl) ethylenediamine triacetic acid. Then the silanized graphene oxide sheets were reduced to produce water-soluble graphene derivatives (EDTA-graphenes). Fourier transform infrared spectroscopy, scanning electron microscopy and X-ray photoelectron spectroscopy were employed to characterize the structures and properties of the EDTA-graphenes and to monitor changes in the surface morphology and chemical and physical characteristics of graphene at different stages of the silylation reaction. The EDTA-graphenes showed improved dispersion in water and an EDTA-graphene film with a well-layered structure and high conductivity was fabricated.

Original languageEnglish
Pages (from-to)68-74
Number of pages7
JournalChemical Physics Letters
Issue number1-3
StatePublished - 6 Dec 2010


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