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Article Dans Une Revue Journal of Fluorine Chemistry Année : 2016

Electrochemical oxidation of graphite in aqueous hydrofluoric acid solution at high current densities.

Résumé

Electrochemical oxidation of graphite was performed at high current densities in 47% HF aqueous solution. Cyclic voltammetry indicated that covalent Csingle bondF bonding formed above 2.4 V vs Pb/PbF2. The sample obtained at higher current densities than 200 mA cm−2 was stage 1 type material with an interlayer spacing of 0.55 nm and it contained a considerable amount of oxygen, together with the covalently bonded fluorine. The discharge profile of this sample as a cathode of lithium primary battery was similar to that of C2.5F prepared under F2 gas atmosphere and the capacity reached 550 mAh g−1. This strongly indicated that not only fluorine but also oxygen in this sample was utilized.
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Dates et versions

hal-01370215 , version 1 (22-09-2016)

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Yoshiaki Matsuo, Saeko Hirata, Marc Dubois. Electrochemical oxidation of graphite in aqueous hydrofluoric acid solution at high current densities.. Journal of Fluorine Chemistry, 2016, 185, pp.36-41. ⟨10.1016/j.jfluchem.2016.01.015⟩. ⟨hal-01370215⟩
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