Abstract
The solid-phase transformations of polyhedral nanoparticles at a pressure of 8.0 GPa and various temperatures have been investigated by X-ray diffraction, small-angle X-ray scattering, and transmission electron microscopy. It has been found that the graphene layers of the inner cavities of polyhedral particles are transformed into onion-like structures at temperatures above ∼1000°C. This transformation gives rise to the formation of hybrid-type sp2 carbon nanoparticles, which combine the outer polyhedral shape with the quasispherical onion-like core. Polyhedral nanoparticles smaller than ∼40 nm are completely transformed into onion-like particles at 1600°C.
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References
V. V. Pokropivnyi and A. L. Ivanovskii, Usp. Khim. 77, 899 (2008).
Q. Jiang and Z. P. Chen, Carbon 44, 79 (2006).
R. D. Heidenreich, W. M. Hess, and L. L. Ban, J. Appl. Cryst. 1, 1 (1968).
S. Iijima, J. Cryst Growth 50, 675 (1980).
D. Ugarte, Carbon 32, 1245 (1994).
V. L. Kuznetsov, A. L. Chuvilin, Yu. V. Butenko, et al., Chem. Phys. Lett. 222, 343 (1994).
S. Tomita, A. Burian, J. C. Dore, et al., Carbon 40, 1469 (2002).
R. L. Vander Wal, A. J. Tomasek, K. Street, et al., Appl. Spectrosc. 58, 230 (2004).
L. G. Khvostantsev, L. F. Vereshchagin, and A. P. Novikov, High Temp. High Press. 9, 637 (1977).
D. I. Svergun, J. Appl. Cryst. 25, 495 (1992).
F. Banhart and P. M. Ajayan, Nature 382, 433 (1996).
A. S. Barnard, S. P. Russo, and I. K. Snook, Phys. Rev. B 68, 073406 (2003).
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Original Russian Text © V.A. Davydov, A.A. Shiryaev, A.V. Rakhmanina, V.P. Filonenko, A.L. Vasil’ev, C. Autret, V.N. Agafonov, V.N. Khabashesku, 2009, published in Pis’ma v Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2009, Vol. 90, No. 12, pp. 861–865.
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Davydov, V.A., Shiryaev, A.A., Rakhmanina, A.V. et al. Polyhedral carbon nanoparticles at high pressures. Jetp Lett. 90, 763–767 (2010). https://doi.org/10.1134/S0021364009240060
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DOI: https://doi.org/10.1134/S0021364009240060