Abstract
Nanocrystalline graphite samples obtained by the sonication of TEG in water and glycerol have been investigated by XPS and AES. The ultrasonic treatment of graphite leads to the loosening of its edges, increases the number of defects in layers, and promotes the penetration of a modifying fluid into the interlayer space in the peripheral areas. The dissociation on internal defects with the formation of C–OH groups is possible in the case of water. In friction against a thoroughly polished steel surface, modified graphite particles have demonstrated a lower coefficient of friction but a shorter lifetime than original graphite.
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Pertsin, A. and Grunze, M., Water-graphite interaction and behavior of water near the graphite surface, J. Phys. Chem. B, 2004, vol. 108, pp. 1357–1364.
Gordillo, M.C. and Marti, J., Structure of water adsorbed on a single graphene sheet, Phys. Rev. B, 2008, vol. 78, no. 7.
Cabrera-Sanfelix, P. and Darling, G.R., Dissociative adsorption of water at vacancy defects in graphite, J. Phys. Chem. C, 2007, vol. 111, pp. 18258–18263.
Cicero, G., Grossman, J.C., Schwegler, E., Gydi, F., and Galli, G., Water confined in nanotubes and between graphene sheets: a first principle study, J. Am. Chem. Soc., 2008, vol. 130, pp. 1871–1878.
Xu, S., Irle, S., Musaev, D. G., and Lin, M.C., Water clusters on graphite: methodology for quantum chemical a priori prediction of reaction rate constants, J. Phys. Chem. A, 2005, vol. 109, pp. 9563–9572.
Pertsin, A. and Grunze, M., Nanotribology of confined water by quasistatic computer simulations: effect of impurities, Tribol. Lett., 2010, vol. 40, pp. 167–173.
Wang, S., Zhang, Y., Adidi, N., and Cabrales, L., Wettability and surface free energy of graphene films, Langmuir, 2009, vol. 25, pp. 11078–11081.
Stempfle, P. and von Stebut, J., Nano-mechanical behaviour of the 3rd body generated in dry friction— feedback effect of the 3rd body and influence of the surrounding environment on the tribology of graphite, Wear, 2006, vol. 260, pp. 601–614.
Beamson, G. and Briggs, D., High Resolution XPS of Organic Polymers, New York: Wiley, 1992.
Dementjev, A.P., Maslakov, K.I., and Naumkin, A.V., Relationship between the C KVV Auger line shape and layered structure of graphite, Appl. Surf. Sci., 2005, vol. 245, pp. 128–134.
Nakajima, T. and Tamura, T., The c-axis structures of stage 1 and 2 fluorine-graphite intercalation compounds prepared from highly oriented pyrolytic graphite and natural graphite flake, Synth. Met., 1995, vol. 73, pp. 63–67.
Krasnov, A.P., Naumkin, A.V., Aderikha, V.N., Yudin, A.S., Afonicheva, O.V., Maslakov, K.I., Goloveshkin, A.S., Lenenko, N.D., Bushmarinov, I.S., Pesetsky, S.S., and Golub’, A.S., Effect of particle size and composition of powdered nanocrystalline molybdenum disulfide on its tribological behavior, J. Frict. Wear, 2014, vol. 35, no. 4, pp. 330–338.
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Original Russian Text © A.P. Krasnov, A.V. Naumkin, V.N. Aderikha, D.I. Buyaev, I.O. Volkov, A.S. Yudin, M.V. Goroshkov, 2017, published in Trenie i Iznos, 2017, Vol. 38, No. 3, pp. 217–224.
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Krasnov, A.P., Naumkin, A.V., Aderikha, V.N. et al. Structural and frictional peculiarities of nanocrystalline thermally expanded graphite particles sonicated in water and glycerol. J. Frict. Wear 38, 202–207 (2017). https://doi.org/10.3103/S1068366617030084
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DOI: https://doi.org/10.3103/S1068366617030084