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

Autor(en)

Konstantin Yagotintsev, Yu. E. Stetsenko, I.V. Legchenkova, A.I. Prokhvatilov, Mikhail Strzhemechny, Erhard Schafler, Michael Zehetbauer

Abstrakt

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(en)

Physik Nanostrukturierter Materialien

Externe Organisation(en)

National Academy of Sciences of Ukraine (NASU)

Journal

Low Temperature Physics

Band

35

Seiten

238-242

Anzahl der Seiten

5

ISSN

1063-777X

DOI

https://doi.org/10.1063/1.3081158

Publikationsdatum

2009

Peer-reviewed

Ja

ÖFOS 2012

103023 Polymerphysik, 210006 Nanotechnologie, 103018 Materialphysik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/05ce9314-ece0-44ab-80f7-7d564c546244