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

doi:10.1016/j.cplett.2010.10.051

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

Chemistry and Biochemistry

Research output: Contribution to journal › Article › peer-review

225 Scopus citations

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 language	English
Pages (from-to)	68-74
Number of pages	7
Journal	Chemical Physics Letters
Volume	501
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cplett.2010.10.051
State	Published - 6 Dec 2010

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10.1016/j.cplett.2010.10.051

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title = "Formation of highly stable dispersions of silane-functionalized reduced graphene oxide",

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.",

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AU - Hou, Shifeng

AU - Su, Shujun

AU - Kasner, Marc L.

AU - Shah, Pratik

AU - Patel, Krutika

AU - Madarang, Clemonne John

PY - 2010/12/6

Y1 - 2010/12/6

N2 - 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.

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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VL - 501

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

Abstract

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