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Electrophoretic stabilization of freestanding pristine graphene foams with carbon nanotubes for enhanced optical and electrical response.

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Title: Electrophoretic stabilization of freestanding pristine graphene foams with carbon nanotubes for enhanced optical and electrical response.
Authors: Oakes, Landon1,2, Cohn, Adam P.1, Westover, Andrew S.1,2, Pint, Cary L.1,2 Cary.L.Pint@Vanderbilt.edu
Source: Materials Letters. Nov2015, Vol. 159, p261-264. 4p.
Subjects: Electrophoresis, Chemical stability, Graphene, Metal foams, Carbon nanotubes
Abstract: Graphene materials, including three-dimensional foams, are commonly transferred from growth substrates using polymer stabilization processes. Even after harsh chemical and annealing treatments to remove the polymer, residues remain which compromise the electronic, thermal, gravimetric, and chemical properties of the graphene. To overcome this, we present a scalable, clean approach to stabilize graphene foams by conformal electrophoretic deposition of web-like networks of surfactant-free single-walled carbon nanotubes directly from polar solvents. We demonstrate these coatings to yield a pristine stabilized graphene material exhibiting 50x lower electrical resistance and a 10 cm −1 optical red-shift in the Raman G′ double resonance mode in comparison to polymer-stabilized graphene. This approach enables the formation of three-dimensional architectures of nanomaterials without the adverse effects associated with residual impurities from polymer and chemical processing. [ABSTRACT FROM AUTHOR]
Copyright of Materials Letters is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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An: 109551856
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  Data: Electrophoretic stabilization of freestanding pristine graphene foams with carbon nanotubes for enhanced optical and electrical response.
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  Data: <searchLink fieldCode="AR" term="%22Oakes%2C+Landon%22">Oakes, Landon</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Cohn%2C+Adam+P%2E%22">Cohn, Adam P.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Westover%2C+Andrew+S%2E%22">Westover, Andrew S.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Pint%2C+Cary+L%2E%22">Pint, Cary L.</searchLink><relatesTo>1,2</relatesTo><i> Cary.L.Pint@Vanderbilt.edu</i>
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  Data: <searchLink fieldCode="JN" term="%22Materials+Letters%22">Materials Letters</searchLink>. Nov2015, Vol. 159, p261-264. 4p.
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  Data: Graphene materials, including three-dimensional foams, are commonly transferred from growth substrates using polymer stabilization processes. Even after harsh chemical and annealing treatments to remove the polymer, residues remain which compromise the electronic, thermal, gravimetric, and chemical properties of the graphene. To overcome this, we present a scalable, clean approach to stabilize graphene foams by conformal electrophoretic deposition of web-like networks of surfactant-free single-walled carbon nanotubes directly from polar solvents. We demonstrate these coatings to yield a pristine stabilized graphene material exhibiting 50x lower electrical resistance and a 10 cm −1 optical red-shift in the Raman G′ double resonance mode in comparison to polymer-stabilized graphene. This approach enables the formation of three-dimensional architectures of nanomaterials without the adverse effects associated with residual impurities from polymer and chemical processing. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Materials Letters is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.matlet.2015.06.117
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        Text: English
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      – SubjectFull: Chemical stability
        Type: general
      – SubjectFull: Graphene
        Type: general
      – SubjectFull: Metal foams
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      – SubjectFull: Carbon nanotubes
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      – TitleFull: Electrophoretic stabilization of freestanding pristine graphene foams with carbon nanotubes for enhanced optical and electrical response.
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              Text: Nov2015
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