In this work we report on the development of an eco-friendly method for the chemical exfoliation of graphite in order to produce high-quality graphene for sensing applications. A mixture of low-boiling-point solvents, such as 1-butanol and 2-propanol, was employed for this purpose. The resulting colloidal suspension was a stable dispersion of few-layer flakes. This material was employed to fabricate chemiresistor devices that showed a remarkable variation of conductance when exposed to 350 ppb of NO2. © 2014 Springer International Publishing Switzerland.
Exfoliation of graphite and dispersion of graphene in solutions of low-boiling-point solvents for use in gas sensors
Di Francia, G.;Massera, E.;Miglietta, M.L.;Polichetti, T.
2014-01-01
Abstract
In this work we report on the development of an eco-friendly method for the chemical exfoliation of graphite in order to produce high-quality graphene for sensing applications. A mixture of low-boiling-point solvents, such as 1-butanol and 2-propanol, was employed for this purpose. The resulting colloidal suspension was a stable dispersion of few-layer flakes. This material was employed to fabricate chemiresistor devices that showed a remarkable variation of conductance when exposed to 350 ppb of NO2. © 2014 Springer International Publishing Switzerland.File in questo prodotto:
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