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Solidified fillings of nanopores
Publikationstyp
Conference Paper
Date Issued
2005-03
Sprache
English
Author(s)
First published in
Number in series
876
Start Page
26
End Page
39
Citation
Materials Research Society Symposium Proceedings 876: 26-39 (2005)
Contribution to Conference
Publisher DOI
Scopus ID
Publisher
MRS
We present a selection of x-ray diffraction patterns of spherical (He, Ar), dumbbell- (N2, CO), and chain-like molecules (n-C9H 20, n-C19H40) solidified in nanopores of silica glass (mean pore diameter 7nm). These patterns allow us to demonstrate how key principles governing crystallization have to be adapted in order to accomplish solidification in restricted geometries. 4He, Ar, and the spherical close packed phases of CO and N2 adjust to the pore geometry by introducing a sizeable amount of stacking faults. For the pore solidified, medium-length chain-like n-C19H40 we observe a close packed structure without lamellar ordering, whereas for the short-chain C 9H20 the layering principle survives, albeit in a modified fashion compared to the bulk phase.
DDC Class
530: Physik