A one-step, solvothermal reduction method for producing reduced graphene oxide dispersions in organic solvents

Sergey Dubin; Scott Gilje; Kan Wang; Vincent C. Tung; Kitty Cha; Anthony S. Hall; Jabari Farrar; Rupal Varshneya; Yang Yang; Richard B. Kaner

doi:10.1021/nn100511a

A one-step, solvothermal reduction method for producing reduced graphene oxide dispersions in organic solvents

Sergey Dubin, Scott Gilje^*, Kan Wang, Vincent C. Tung, Kitty Cha, Anthony S. Hall, Jabari Farrar, Rupal Varshneya, Yang Yang, Richard B. Kaner

^*Corresponding author for this work

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

576 Scopus citations

Abstract

Refluxing graphene oxide (GO) in N-methyl-2-pyrrolidinone (NMP) results in deoxygenation and reduction to yield a stable colloidal dispersion. The solvothermal reduction is accompanied by a color change from light brown to black. Atomic force microscopy (AFM) and scanning electron microscopy (SEM) images of the product confirm the presence of single sheets of the solvothermally reduced graphene oxide (SRGO). X-ray photoelectron spectroscopy (XPS) of SRGO indicates a significant increase in intensity of the C=C bond character, while the oxygen content decreases markedly after the reduction is complete. X-ray diffraction analysis of SRGO shows a single broad peak at 26.24° 2θ (3.4 Å), confirming the presence of graphitic stacking of reduced sheets. SRGO sheets are redispersible in a variety of organic solvents, which may hold promise as an acceptor material for bulk heterojunction photovoltaic cells, or electromagnetic interference shielding applications.

Original language	English (US)
Pages (from-to)	3845-3852
Number of pages	8
Journal	ACS Nano
Volume	4
Issue number	7
DOIs	https://doi.org/10.1021/nn100511a
State	Published - Jul 27 2010
Externally published	Yes

Keywords

composite
graphene
graphite oxide
reduced graphene oxide
reduction
solar cell
solvothermal

ASJC Scopus subject areas

General Materials Science
General Engineering
General Physics and Astronomy

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1021/nn100511a

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title = "A one-step, solvothermal reduction method for producing reduced graphene oxide dispersions in organic solvents",

abstract = "Refluxing graphene oxide (GO) in N-methyl-2-pyrrolidinone (NMP) results in deoxygenation and reduction to yield a stable colloidal dispersion. The solvothermal reduction is accompanied by a color change from light brown to black. Atomic force microscopy (AFM) and scanning electron microscopy (SEM) images of the product confirm the presence of single sheets of the solvothermally reduced graphene oxide (SRGO). X-ray photoelectron spectroscopy (XPS) of SRGO indicates a significant increase in intensity of the C=C bond character, while the oxygen content decreases markedly after the reduction is complete. X-ray diffraction analysis of SRGO shows a single broad peak at 26.24° 2θ (3.4 {\AA}), confirming the presence of graphitic stacking of reduced sheets. SRGO sheets are redispersible in a variety of organic solvents, which may hold promise as an acceptor material for bulk heterojunction photovoltaic cells, or electromagnetic interference shielding applications.",

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author = "Sergey Dubin and Scott Gilje and Kan Wang and Tung, {Vincent C.} and Kitty Cha and Hall, {Anthony S.} and Jabari Farrar and Rupal Varshneya and Yang Yang and Kaner, {Richard B.}",

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doi = "10.1021/nn100511a",

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T1 - A one-step, solvothermal reduction method for producing reduced graphene oxide dispersions in organic solvents

AU - Dubin, Sergey

AU - Gilje, Scott

AU - Wang, Kan

AU - Tung, Vincent C.

AU - Cha, Kitty

AU - Hall, Anthony S.

AU - Farrar, Jabari

AU - Varshneya, Rupal

AU - Yang, Yang

AU - Kaner, Richard B.

PY - 2010/7/27

Y1 - 2010/7/27

N2 - Refluxing graphene oxide (GO) in N-methyl-2-pyrrolidinone (NMP) results in deoxygenation and reduction to yield a stable colloidal dispersion. The solvothermal reduction is accompanied by a color change from light brown to black. Atomic force microscopy (AFM) and scanning electron microscopy (SEM) images of the product confirm the presence of single sheets of the solvothermally reduced graphene oxide (SRGO). X-ray photoelectron spectroscopy (XPS) of SRGO indicates a significant increase in intensity of the C=C bond character, while the oxygen content decreases markedly after the reduction is complete. X-ray diffraction analysis of SRGO shows a single broad peak at 26.24° 2θ (3.4 Å), confirming the presence of graphitic stacking of reduced sheets. SRGO sheets are redispersible in a variety of organic solvents, which may hold promise as an acceptor material for bulk heterojunction photovoltaic cells, or electromagnetic interference shielding applications.

AB - Refluxing graphene oxide (GO) in N-methyl-2-pyrrolidinone (NMP) results in deoxygenation and reduction to yield a stable colloidal dispersion. The solvothermal reduction is accompanied by a color change from light brown to black. Atomic force microscopy (AFM) and scanning electron microscopy (SEM) images of the product confirm the presence of single sheets of the solvothermally reduced graphene oxide (SRGO). X-ray photoelectron spectroscopy (XPS) of SRGO indicates a significant increase in intensity of the C=C bond character, while the oxygen content decreases markedly after the reduction is complete. X-ray diffraction analysis of SRGO shows a single broad peak at 26.24° 2θ (3.4 Å), confirming the presence of graphitic stacking of reduced sheets. SRGO sheets are redispersible in a variety of organic solvents, which may hold promise as an acceptor material for bulk heterojunction photovoltaic cells, or electromagnetic interference shielding applications.

KW - composite

KW - graphene

KW - graphite oxide

KW - reduced graphene oxide

KW - reduction

KW - solar cell

KW - solvothermal

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SN - 1936-0851

VL - 4

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EP - 3852

JO - ACS Nano

JF - ACS Nano

IS - 7

ER -

A one-step, solvothermal reduction method for producing reduced graphene oxide dispersions in organic solvents

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

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