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Issue 26, 2015
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Electrochemical exfoliation of graphite in quaternary ammonium-based deep eutectic solvents: a route for the mass production of graphane

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Abstract

We demonstrate a facile and scalable electrochemical approach to exfoliate graphite, which permits in situ hydrogenation of the resultant graphene via a solvated NR4+ graphite compound in quaternary ammonium-based deep eutectic solvents. Spectroscopic studies reveal the presence of sp3 C–H bonds in the hydrogenated graphene. The resulting materials consist of micrometre-sized and predominantly monolayer to few layers thick hydrogenated graphenic flakes. A large band gap (∼4 eV) further establishes the high level of hydrogenation. It is also possible to tune the band gap introduced to the graphene by controlling the level of hydrogenation. The mechanism of the exfoliation and hydrogenation is also discussed.

Graphical abstract: Electrochemical exfoliation of graphite in quaternary ammonium-based deep eutectic solvents: a route for the mass production of graphane

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Article information


Submitted
01 May 2015
Accepted
30 May 2015
First published
03 Jun 2015

Nanoscale, 2015,7, 11386-11392
Article type
Paper

Electrochemical exfoliation of graphite in quaternary ammonium-based deep eutectic solvents: a route for the mass production of graphane

A. M. Abdelkader, H. V. Patten, Z. Li, Y. Chen and I. A. Kinloch, Nanoscale, 2015, 7, 11386
DOI: 10.1039/C5NR02840J

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