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The phase diagram of fullerene C60 at high temperatures and pressures

  • Chemical Thermodynamics and Thermochemistry
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Abstract

Experimental and literature data were used to calculate the Gibbs energies of polymerized C60 phases and construct the equilibrium T-p phase diagram of fullerene C60 at temperatures from 0 to 1000 K and pressures from 0 to 8 GPa. The diagram contains stability regions of the orthorhombic, tetragonal, and rhombohedral polymerized C60 phases and primitive cubic (PC) and face-centered cubic (FCC) nonpolymerized C60 phases. The orthorhombic phase (linear polymer) is an equilibrium phase at 298 K and 1 bar and in the adjacent region. The equilibrium line observed experimentally (FCC C60—orthorhombic phase) is well described by the phase diagram. The optimum temperatures and pressures of the synthesis of polymerized phases are determined by kinetic rather than thermodynamic parameters.

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Authors and Affiliations

  1. Faculty of Chemistry, Moscow State University, Leninskie gory, Moscow, 119899, Russia

    A. G. Bogachev, M. V. Korobov & V. M. Senyavin

  2. Research Institute of Chemistry, Nizhni Novgorod State University, pr. Gagarina 23/5, Nizhni Novgorod, 603600, Russia

    A. V. Markin

  3. Vereshchagin Institute of High-Pressure Physics, Russian Academy of Sciences, Troitsk, Moscow oblast, 142190, Russia

    V. A. Davydov & A. V. Rakhmanina

Authors
  1. A. G. Bogachev
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  2. M. V. Korobov
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  3. V. M. Senyavin
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  4. A. V. Markin
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  5. V. A. Davydov
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  6. A. V. Rakhmanina
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Additional information

Original Russian Text © A.G. Bogachev, M.V. Korobov, V.M. Senyavin, A.V. Markin, V.A. Davydov, A.V. Rakhmanina, 2006, published in Zhurnal Fizicheskoi Khimii, 2006, Vol. 80, No. 5, pp. 803–807.

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Bogachev, A.G., Korobov, M.V., Senyavin, V.M. et al. The phase diagram of fullerene C60 at high temperatures and pressures. Russ. J. Phys. Chem. 80, 693–696 (2006). https://doi.org/10.1134/S0036024406050050

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  • DOI: https://doi.org/10.1134/S0036024406050050

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