Basal Plane Fluorination of Graphene by XeF<sub>2</sub> via a Radical
Cation Mechanism
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Abstract
Graphene
fluorination with XeF<sub>2</sub> is an attractive method
to introduce a nonzero bandgap to graphene under mild conditions for
potential electro-optical applications. Herein, we use well-defined
graphene nanostructures as a model system to study the reaction mechanism
of graphene fluorination by XeF<sub>2</sub>. Our combined experimental
and theoretical studies show that the reaction can proceed through
a radical cation mechanism, leading to fluorination and sp<sup>3</sup>-hybridized carbon in the basal plane