期刊
JOURNAL OF FLUORINE CHEMISTRY
卷 129, 期 8, 页码 720-724出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jfluchem.2008.05.020
关键词
graphite fluoride; eutectic NaOH-KOH; graphitization; water-soluble carbon; fluorescence; carbon morphology
资金
- DOE [03EDelta581]
- Ministry of education of the Czech Republic [1M6198952901, MSM6198959218]
Graphite fluoride has been generally considered chemically inert against strong alkalis under ambient conditions. In the present study we demonstrate that treatment of graphite fluoride with eutectic NaOH-KOH mixture at 250 degrees C induces dramatic structural and textural changes in the solid as evidenced by XRD, FT-IR, Raman, UV-vis absorption and fluorescence and microscopy techniques (TEM, AFM). The reaction proceeds in the molten state leading to water-soluble, graphitized carbon particles which unlike graphite fluoride, adopt a variety of morphologies, like platy, tetragonal, triangular, discoid and spherical. The resulting carbon particles are dispersible in water and fluoresce under UV excitation. (c) 2008 Elsevier B.V. All rights reserved.
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