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Chemistry under Cover: Tuning Metal—Graphene Interaction by Reactive Intercalation.

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Title: Chemistry under Cover: Tuning Metal—Graphene Interaction by Reactive Intercalation.
Authors: Sutter, Peter1 psutter@bnl.gov, Sadowski, Jerzy T.1, Suffer, Eli A.1
Source: Journal of the American Chemical Society. 6/16/2010, Vol. 132 Issue 23, p8175-8179. 5p.
Subjects: Graphene, Oxygen, Oxidation, Ruthenium, Experiments, Chemical reactions
Abstract: Intercalation of metal atoms is an established route for tuning the coupling of graphene to a substrate. The extension to reactive species such as oxygen would set the stage for a wide spectrum of interfacial chemistry. Here we demonstrate the controlled modification of a macroscopic graphene–metal interface by oxygen intercalation. The selective oxidation of a ruthenium surface beneath graphene lifts the strong metal–carbon coupling and restores the characteristic Dirac cones of isolated monolayer graphene. Our experiments establish the competition between low–temperature oxygen intercalation and grapherie etching at higher temperatures and suggest that small molecules can populate the space between graphene and metals, with the adsorbate–metal interaction being modified significantly by the presence of graphene. These findings open up new avenues for the processing of graphene for device applications and for performing chemical reactions in the confined space between a metal surface and a graphene sheet. [ABSTRACT FROM AUTHOR]
Copyright of Journal of the American Chemical Society is the property of American Chemical Society 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.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 51796653
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PubType: Academic Journal
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  Data: Chemistry under Cover: Tuning Metal—Graphene Interaction by Reactive Intercalation.
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  Data: <searchLink fieldCode="AR" term="%22Sutter%2C+Peter%22">Sutter, Peter</searchLink><relatesTo>1</relatesTo><i> psutter@bnl.gov</i><br /><searchLink fieldCode="AR" term="%22Sadowski%2C+Jerzy+T%2E%22">Sadowski, Jerzy T.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Suffer%2C+Eli+A%2E%22">Suffer, Eli A.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+the+American+Chemical+Society%22">Journal of the American Chemical Society</searchLink>. 6/16/2010, Vol. 132 Issue 23, p8175-8179. 5p.
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  Data: <searchLink fieldCode="DE" term="%22Graphene%22">Graphene</searchLink><br /><searchLink fieldCode="DE" term="%22Oxygen%22">Oxygen</searchLink><br /><searchLink fieldCode="DE" term="%22Oxidation%22">Oxidation</searchLink><br /><searchLink fieldCode="DE" term="%22Ruthenium%22">Ruthenium</searchLink><br /><searchLink fieldCode="DE" term="%22Experiments%22">Experiments</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+reactions%22">Chemical reactions</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Intercalation of metal atoms is an established route for tuning the coupling of graphene to a substrate. The extension to reactive species such as oxygen would set the stage for a wide spectrum of interfacial chemistry. Here we demonstrate the controlled modification of a macroscopic graphene–metal interface by oxygen intercalation. The selective oxidation of a ruthenium surface beneath graphene lifts the strong metal–carbon coupling and restores the characteristic Dirac cones of isolated monolayer graphene. Our experiments establish the competition between low–temperature oxygen intercalation and grapherie etching at higher temperatures and suggest that small molecules can populate the space between graphene and metals, with the adsorbate–metal interaction being modified significantly by the presence of graphene. These findings open up new avenues for the processing of graphene for device applications and for performing chemical reactions in the confined space between a metal surface and a graphene sheet. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of the American Chemical Society is the property of American Chemical Society 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: 10.1021/Ja102398n
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      – Code: eng
        Text: English
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      – SubjectFull: Graphene
        Type: general
      – SubjectFull: Oxygen
        Type: general
      – SubjectFull: Oxidation
        Type: general
      – SubjectFull: Ruthenium
        Type: general
      – SubjectFull: Experiments
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      – SubjectFull: Chemical reactions
        Type: general
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      – TitleFull: Chemistry under Cover: Tuning Metal—Graphene Interaction by Reactive Intercalation.
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              Text: 6/16/2010
              Type: published
              Y: 2010
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