High concentration few-layer graphene sheets obtained by liquid phase exfoliation of graphite in ionic liquid
By Daniele Nuvoli, L. Valentini, V. Alzari, Sergio Scognamillo, S. B. Bon, M. Piccinini, J. Illescas, A. Mariani. 2010
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In the present work, the use of a commercial ionic liquid as a convenient solvent medium for graphite exfoliation in mild and easy conditions without any chemical modification is presented. To confirm the presence of few layer graphene, its dispersion, which exhibits Tyndall effect, was characterized by Raman and UV spectroscopies, and atomic force and field emission electron microscopies. It is noteworthy that, by gravimetric analysis, a graphene concentration as high as 5.33 mg ml−1 was determined, which is the highest value reported so far in any solvent.
Subfields: Materials Chemistry, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/6efed77b961e9fcf2b37b7ff7a6b531eec5fa26e
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In Materials Chemistry
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Citations in the corpus
- Graphene synthesis, characterization and its applications in nanophotonics, nanoelectronics, and nanosensing (2015, background): “[57] demonstrated a better result by sonicating a 3.”