Process of intercalation of C60 with molecular hydrogen according to X-ray diffraction data

Author(s)
Konstantin Yagotintsev, Yu. E. Stetsenko, I.V. Legchenkova, A.I. Prokhvatilov, Mikhail Strzhemechny, Erhard Schafler, Michael Zehetbauer
Abstract

The process of normal hydrogen infusion into a C60powder at 1bar and room temperature is monitored using x-ray diffraction. The effect of the intercalation on the lattice proves to be rather weak: the volume expansion upon complete saturation does not exceed 0.13%. The characteristic saturation time is found to be 320h; the corresponding diffusion coefficient amounts to (2.8±0.8)×10−14cm2/s. The integrated reflection intensity calculations for a completely saturated sample suggest that only octahedral voids are filled under the conditions of the experiment. Complete saturation has only a weak effect on the rotational subsystem of the C60fullerite: the orientational phase transition shifts by 6to7K to lower temperatures; no substantial hysteresis is noticed. The dopant shows reluctance to leave the sample under a vacuum of 10−3Torr at room temperature.

Organisation(s)
Physics of Nanostructured Materials
External organisation(s)
National Academy of Sciences of Ukraine (NASU)
Journal
Low Temperature Physics
Volume
35
Pages
238-242
No. of pages
5
ISSN
1063-777X
DOI
https://doi.org/10.1063/1.3081158
Publication date
2009
Peer reviewed
Yes
Austrian Fields of Science 2012
103023 Polymer physics, 210006 Nanotechnology, 103018 Materials physics
Portal url
https://ucris.univie.ac.at/portal/en/publications/process-of-intercalation-of-c60-with-molecular-hydrogen-according-to-xray-diffraction-data(05ce9314-ece0-44ab-80f7-7d564c546244).html