Nanoscale ionic graphene material with liquid-like behavior in the absence of solvent

Peipei Li; Yaping Zheng; Yiwei Wu; Ping Qu; Ruilu Yang; Aibo Zhang

doi:10.1016/j.apsusc.2014.06.131

Nanoscale ionic graphene material with liquid-like behavior in the absence of solvent

Peipei Li, Yaping Zheng, Yiwei Wu, Ping Qu, Ruilu Yang, Aibo Zhang

School of Chemistry and Chemical Engineering

Northwestern Polytechnical University Xian

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

26 Scopus citations

Abstract

A nanoscale ionic graphene hybrid material with liquid-like behavior was obtained by using tertiary amine as corona and sulfonate anions as canopy. The microstructures and the rheological property of the solvent-free graphene nanofluid (G-PEGs) had been extensively characterized by various analytical techniques. The content of graphene was up to 12.05 wt%. The thickness of G-PEGs ranged from 2 nm to 5 nm. The conductivity of G-PEGs exhibited that the percolation threshold was about 0.99 vol%. In addition, the G-PEGs had relative low viscosity at room temperature (67.6 pa s at 20 °C). Most importantly, the G-PEGs showed excellent dispersion in solvents, such as water and ethanol. Those unique properties of G-PEGs may offer new scientific and technical opportunities for the applications of graphene. At the same time, the facile route to G-PEGs can be used in the fabrication of various GO or graphene based composite materials.

Original language	English
Pages (from-to)	983-990
Number of pages	8
Journal	Applied Surface Science
Volume	314
DOIs	https://doi.org/10.1016/j.apsusc.2014.06.131
State	Published - 30 Sep 2014

Keywords

Amphiphilicity
Graphene
Hybrid material
Liquid-like behaviour
Solvent-free nanofluid

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10.1016/j.apsusc.2014.06.131

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title = "Nanoscale ionic graphene material with liquid-like behavior in the absence of solvent",

abstract = "A nanoscale ionic graphene hybrid material with liquid-like behavior was obtained by using tertiary amine as corona and sulfonate anions as canopy. The microstructures and the rheological property of the solvent-free graphene nanofluid (G-PEGs) had been extensively characterized by various analytical techniques. The content of graphene was up to 12.05 wt%. The thickness of G-PEGs ranged from 2 nm to 5 nm. The conductivity of G-PEGs exhibited that the percolation threshold was about 0.99 vol%. In addition, the G-PEGs had relative low viscosity at room temperature (67.6 pa s at 20 °C). Most importantly, the G-PEGs showed excellent dispersion in solvents, such as water and ethanol. Those unique properties of G-PEGs may offer new scientific and technical opportunities for the applications of graphene. At the same time, the facile route to G-PEGs can be used in the fabrication of various GO or graphene based composite materials.",

keywords = "Amphiphilicity, Graphene, Hybrid material, Liquid-like behaviour, Solvent-free nanofluid",

author = "Peipei Li and Yaping Zheng and Yiwei Wu and Ping Qu and Ruilu Yang and Aibo Zhang",

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doi = "10.1016/j.apsusc.2014.06.131",

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T1 - Nanoscale ionic graphene material with liquid-like behavior in the absence of solvent

AU - Li, Peipei

AU - Zheng, Yaping

AU - Wu, Yiwei

AU - Qu, Ping

AU - Yang, Ruilu

AU - Zhang, Aibo

PY - 2014/9/30

Y1 - 2014/9/30

N2 - A nanoscale ionic graphene hybrid material with liquid-like behavior was obtained by using tertiary amine as corona and sulfonate anions as canopy. The microstructures and the rheological property of the solvent-free graphene nanofluid (G-PEGs) had been extensively characterized by various analytical techniques. The content of graphene was up to 12.05 wt%. The thickness of G-PEGs ranged from 2 nm to 5 nm. The conductivity of G-PEGs exhibited that the percolation threshold was about 0.99 vol%. In addition, the G-PEGs had relative low viscosity at room temperature (67.6 pa s at 20 °C). Most importantly, the G-PEGs showed excellent dispersion in solvents, such as water and ethanol. Those unique properties of G-PEGs may offer new scientific and technical opportunities for the applications of graphene. At the same time, the facile route to G-PEGs can be used in the fabrication of various GO or graphene based composite materials.

AB - A nanoscale ionic graphene hybrid material with liquid-like behavior was obtained by using tertiary amine as corona and sulfonate anions as canopy. The microstructures and the rheological property of the solvent-free graphene nanofluid (G-PEGs) had been extensively characterized by various analytical techniques. The content of graphene was up to 12.05 wt%. The thickness of G-PEGs ranged from 2 nm to 5 nm. The conductivity of G-PEGs exhibited that the percolation threshold was about 0.99 vol%. In addition, the G-PEGs had relative low viscosity at room temperature (67.6 pa s at 20 °C). Most importantly, the G-PEGs showed excellent dispersion in solvents, such as water and ethanol. Those unique properties of G-PEGs may offer new scientific and technical opportunities for the applications of graphene. At the same time, the facile route to G-PEGs can be used in the fabrication of various GO or graphene based composite materials.

KW - Amphiphilicity

KW - Graphene

KW - Hybrid material

KW - Liquid-like behaviour

KW - Solvent-free nanofluid

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DO - 10.1016/j.apsusc.2014.06.131

M3 - 文章

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SN - 0169-4332

VL - 314

SP - 983

EP - 990

JO - Applied Surface Science

JF - Applied Surface Science

ER -

Nanoscale ionic graphene material with liquid-like behavior in the absence of solvent

Abstract

Keywords

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