Abstract
Graphite intercalation compounds (GICs) of composition C x [FB(C 2F 5) 3] · δF are prepared for the first time by the intercalation of fluoro-tris(pentafluoroethyl)borate anion, [FB(C 2F 5) 3] − , under ambient conditions in 48% hydrofluoric acid containing the oxidant K 2[MnF 6]. Powder XRD data indicate that products are of mixed stages 2 and 3 after reactions for 1–20 h, with a gallery height of 0.87 nm. The intercalate orientation is modeled using an energy-minimized anion structure. Microwave digestion followed by B and F elemental analyses, along with thermogravimetric analyses provide compositional x and δ parameters for the GICs obtained. In addition, C x [FB(C 2F 5) 3] · δCH 3NO 2 with stage 2 is prepared by electrochemical oxidation of graphite in a nitromethane solution and characterized as above.
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