A study on the formation mechanism of graphite fluorides by Raman spectroscopy |
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| Authors: | Vinay Gupta Tsuyoshi Nakajima Yoshimi Ohzawa Boris
emva |
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| Institution: | a Department of Applied Chemistry, Aichi Institute of Technology, Yakusa-cho, Toyota-shi 470-0392, Japan;b Jo
ef Stefan Institute, Jamova 39, 1000, Ljubljana, Slovenia |
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| Abstract: | Raman spectra were measured of highly fluorinated graphite samples prepared at room temperature, 380 and 515 °C. CxF prepared at room temperature showed a novel downshifted band at 1555–1542 cm?1 along with G band at 1593–1583 cm?1. Similar behavior is also observed for samples prepared at 380 and 515 °C at early stages of fluorination, after which the Raman shifts completely disappeared. Raman spectra as well as X-ray diffraction (XRD) analysis suggest that graphite fluorides, (CF)n and (C2F)n are formed via fluorine-intercalated phase with planar graphene layers. |
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| Keywords: | Graphite fluoride Fluorine–graphite intercalation compound Raman spectroscopy |
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