A novel ‘bottom-up’ synthesis of few- and multi-layer graphene platelets with partial oxidation via cavitation
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University of Chester (Price, Davies, Smith), Thomas Swan Ltd (Ladislaus)Publication Date
2019-03-28
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The transient cavitation of diaromatic components such as 1-methylnaphthalene has been used to produce graphene platelets in a ‘bottom-up’ synthesis via the high temperature (>5000 K) conditions that are generated inside collapsing bubbles. Acoustic cavitation produced yields of 5.7×10−11 kgJ−1 at a production rate of 2.2×10−9 kgs−1. This can be improved by generating cavitation hydrodynamically, thus making commercial scale production viable. Hydrodynamic cavitation produced platelets with larger lateral dimensions (≥2 μm) than those formed by acoustic cavitation (10–200 nm). The partially oxidised nature of the platelets enables their covalent chemical functionalisation, which was achieved by combining suitable molecules in the reaction medium to affect a one-pot formation and functionalisation of grapheneCitation
R.J. Price, P.I Ladislaus, G.C. Smith & T.J. Davies (2019). A novel bottom-up synthesis of few and multi-layer graphene platelets with partial oxidation via cavitation. Ultrasonics Sonochemistry, 56, 466-473.Publisher
ElsevierJournal
Ultrasonics SonochemistryType
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enEISSN
1873-2828ae974a485f413a2113503eed53cd6c53
10.1016/j.ultsonch.2019.03.020
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