Reaction of graphite fluoride with NaOH-KOH eutectic

被引:23
作者
Bourlinos, Athanasios B. [1 ]
Georgakilas, Vasilios [1 ]
Zboril, Radek [2 ]
Jancik, Dalibor [2 ]
Karakassides, Michael A. [3 ]
Stassinopoulos, Andreas [4 ]
Anglos, Demetrios [4 ]
Giannelis, Emmanuel P. [5 ]
机构
[1] NCSR Demokritos, Inst Mat Sci, Athens 15310, Greece
[2] Palacky Univ, Dept Phys Chem & Expt Phys, Olomouc 77146, Czech Republic
[3] Univ Ioannina, Dept Mat Sci & Engn, GR-45110 Ioannina, Greece
[4] Fdn Res & Technol Hellas, Inst Elect Struct & Laser, GR-71110 Iraklion, Crete, Greece
[5] Cornell Univ, Dept Mat Sci & Engn, Ithaca, NY 14853 USA
关键词
graphite fluoride; eutectic NaOH-KOH; graphitization; water-soluble carbon; fluorescence; carbon morphology;
D O I
10.1016/j.jfluchem.2008.05.020
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
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.
引用
收藏
页码:720 / 724
页数:5
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