Abstract
An approximate equation of state of nanocarbon is used to estimate changes in the enthalpy of formation of single- and multilayer graphene and the graphene-nanodiamond phase equilibrium pressure as a function of geometrical shape, number of layers, and size of a graphene nanoparticle. It is found that upon an increase in the number of layers in graphene with particle sizes of 100–300 nm, the phase equilibrium pressure falls and tends to that of graphite-diamond equilibrium. An agreement between the estimations, the data from MD simulations of the graphene-nanodiamond phase equilibrium, and experimentally measured parameters of the graphene-nanodiamond phase transition was obtained.
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Original Russian Text © S.A. Gubin, I.V. Maklashova, E.I. Zakatilova, 2015, published in Zhurnal Fizicheskoi Khimii, 2015, Vol. 89, No. 8, pp. 1287–1291.
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Gubin, S.A., Maklashova, I.V. & Zakatilova, E.I. Enthalpy of formation of single- and multilayer graphene. Russ. J. Phys. Chem. 89, 1434–1438 (2015). https://doi.org/10.1134/S0036024415080130
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DOI: https://doi.org/10.1134/S0036024415080130