Reaction of graphite fluoride with NaOH-KOH eutectic
Reaction of graphite fluoride with NaOH-KOH eutectic
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DOI：
10.1016/j.jfluchem.2008.05.020
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发表时间：
2008-08-01
影响因子：
1.9
通讯作者：
Giannelis, Emmanuel P.
中科院分区：
文献类型：
--
作者：
Bourlinos, Athanasios B.;Georgakilas, Vasilios;Giannelis, Emmanuel P.
氟化石墨通常被认为在环境条件下对强碱呈化学惰性。在本研究中，我们证明，在 250 摄氏度下用低共熔 NaOH-KOH 混合物处理氟化石墨会引起固体中结构和结构的显着变化，这一点由 XRD、FT-IR、拉曼、紫外-可见吸收以及荧光和显微镜技术（TEM、AFM）证明。该反应在熔融状态下进行，产生水溶性石墨化碳颗粒，与氟化石墨不同，该碳颗粒具有多种形态，如板状、四边形、三角形、盘状和球形。所得碳颗粒可分散在水中并在紫外线激发下发出荧光。 (c) 2008 Elsevier B.V. 保留所有权利。
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.