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

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

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144 Citations (Scopus)

Abstract

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
Volume501
Issue number1-3
DOIs
StatePublished - 6 Dec 2010

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Silanes
Graphite
Dispersions
silanes
Oxides
graphene
ethylenediaminetetraacetic acids
Edetic Acid
oxides
ethylenediamine
Water
water
Surface morphology
X ray photoelectron spectroscopy
infrared spectroscopy
photoelectron spectroscopy
Derivatives
conductivity
Scanning electron microscopy
acids

Cite this

Hou, Shifeng ; Su, Shujun ; Kasner, Marc ; Shah, Pratik ; Patel, Krutika ; Madarang, Clemonne John. / Formation of highly stable dispersions of silane-functionalized reduced graphene oxide. In: Chemical Physics Letters. 2010 ; Vol. 501, No. 1-3. pp. 68-74.
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Formation of highly stable dispersions of silane-functionalized reduced graphene oxide. / Hou, Shifeng; Su, Shujun; Kasner, Marc; Shah, Pratik; Patel, Krutika; Madarang, Clemonne John.

In: Chemical Physics Letters, Vol. 501, No. 1-3, 06.12.2010, p. 68-74.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Madarang, Clemonne John

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AB - 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.

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