Geodesic
Synergistic influence of fluorine and hydrogen on processes of thermal transformations of carbon-containing systems under high pressures
Nanosistemy: fizika, himiâ, matematika, Tome 5 (2014) no. 1, pp. 167-171 Cet article a éte moissonné depuis la source Math-Net.Ru

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Thermal transformations of naphthalene (C$_{10}$H$_{8}$), octafluoronaphthalene (C$_{10}$F$_{8}$) and their binary mixtures at 8.0 GPa have been investigated by X-ray diffraction, Raman spectroscopy, scanning and transmission microscopies. As a result, the pronounced synergistic effect of fluorine and hydrogen on mechanisms, $p$, $T$ parameters and products of pressure-temperature-induced transformations of carbon-containing systems has been established. Simultaneous presence of fluorine and hydrogen gives rise to significant reduction of the temperature thresholds (TT) for carbonization, graphitization and diamond formation in C$_{10}$H$_{8}$ – C$_{10}$F$_{8}$ mixtures in comparison with the TT values for pure C$_{10}$H$_{8}$ and C$_{10}$F$_{8}$ at the same pressure. This synergistic effect manifests itself also in the simultaneous presence in the products of transformation of both nano- and micrometer-sized diamond fractions. The reasons of formation of different diamond fractions in the products of binary mixture treatment are discussed in this work.
Keywords: high pressure, high temperature, nanocarbon materials.
Mots-clés : transformations 
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     author = {V. A. Davydov and A. V. Rakhmanina and V. N. Agafonov and V. N. Khabashesku},
     title = {Synergistic influence of fluorine and hydrogen on processes of thermal transformations of carbon-containing systems under high pressures},
     journal = {Nanosistemy: fizika, himi\^a, matematika},
     pages = {167--171},
     year = {2014},
     volume = {5},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/NANO_2014_5_1_a23/}
}
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V. A. Davydov; A. V. Rakhmanina; V. N. Agafonov; V. N. Khabashesku. Synergistic influence of fluorine and hydrogen on processes of thermal transformations of carbon-containing systems under high pressures. Nanosistemy: fizika, himiâ, matematika, Tome 5 (2014) no. 1, pp. 167-171. http://geodesic.mathdoc.fr/item/NANO_2014_5_1_a23/