Abstract
Structure changes in amorphous phases of different modifications of carbon (diamond, fullerene) have been investigated by means of neutron and x-ray diffraction under irradiation and temperature. Polyamorphic transition (diamond-like – graphite-like phases) was found in irradiated diamonds by density change. It has been found that the amorphous fullerites subjected to high temperature (600–1,700°C) annealing undergo a polyamorphic transition from the molecular glass to the atomic glass, which is accompanied by the disappearance of fullerene halos at small scattering angles. We also studied of structure, sorption properties and thermal stability of intercalation compounds of crystalline and amorphous fullerenes C60 and C70 with saturated and unsaturated molecules. The analysis of structure by neutron scattering and precise thermogravimetry shows that sorption is determined by formation of solid solutions, superstructures or compounds on base of initial fullerenes.
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Acknowledgements
This work has been supported by the Russian Foundation for Basic Research: grants 09-02-00464a, 10-02-00176a.
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Somenkov, V.A. (2011). Neutron Studies of Nanoscale Fullerenes and Fullerene Hydrides. In: Zaginaichenko, S., Schur, D., Skorokhod, V., Veziroglu, A., İbrahimoğlu, B. (eds) Carbon Nanomaterials in Clean Energy Hydrogen Systems - II. NATO Science for Peace and Security Series C: Environmental Security, vol 2. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0899-0_22
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