Journal
NANOSCALE
Volume 7, Issue 26, Pages 11386-11392Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5nr02840j
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Funding
- Faculty of Engineering AMP
- Physical Sciences, University of Manchester
- UMIP
- EPSRC [EP/I023879/1, EP/K016954/1]
- Engineering and Physical Sciences Research Council [EP/K016954/1, EP/I023879/1] Funding Source: researchfish
- EPSRC [EP/K016954/1, EP/I023879/1] Funding Source: UKRI
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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 sp(3) 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 (similar to 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.
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