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Issue 67, 2020
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Imaging the reactivity and width of graphene's boundary region

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Abstract

The reactivity of graphene at its boundary region has been imaged using non-linear spectroscopy to address the controversy whether the terraces of graphene or its edges are more reactive. Graphene was functionalised with phenyl groups, and we subsequently scanned our vibrational sum-frequency generation setup from the functionalised graphene terraces across the edges. A greater phenyl signal is clearly observed at the edges, showing evidence of increased reactivity in the boundary region. We estimate an upper limit of 1 mm for the width of the CVD graphene boundary region.

Graphical abstract: Imaging the reactivity and width of graphene's boundary region

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Supplementary files

Article information


Submitted
14 Apr 2020
Accepted
27 Jul 2020
First published
28 Jul 2020

This article is Open Access

Chem. Commun., 2020,56, 9612-9615
Article type
Communication

Imaging the reactivity and width of graphene's boundary region

H. S. AlSalem, S. T. Al-Goul, A. García-Miranda Ferrari, D. A. C. Brownson, L. Velarde and S. P. K. Koehler, Chem. Commun., 2020, 56, 9612
DOI: 10.1039/D0CC02675A

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