Cellular nanostructure of gas hydrates

It is found that the hydrates obtained by reaction of liquid water with a hydrate-forming gas have a cellular structure with a cell ∼10-5 cm in size. At T ∼ 274 K, the thickness of the walls of the methane hydrate cell is ∼10-7 cm. Formation of the cellular structure is due to a competition between...

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Bibliographic Details
Published in:Journal of structural chemistry 1997-11, Vol.38 (6), p.925-929
Main Authors: Sukharevskii, B. Ya, Prokhorov, A. Yu, Leontieva, A. V., Vasyukov, V. N.
Format: Article
Language:English
Subjects:
Cellular structure
Elastic deformation
Gas hydrates
Methane hydrates
Specific energy
Water
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Summary:It is found that the hydrates obtained by reaction of liquid water with a hydrate-forming gas have a cellular structure with a cell ∼10-5 cm in size. At T ∼ 274 K, the thickness of the walls of the methane hydrate cell is ∼10-7 cm. Formation of the cellular structure is due to a competition between the bulk (difference between chemical potentials, specific energy of elastic deformation) and surface energies. At positive temperatures, monolithic methane hydrate is formed at pressures higher than 6 MPa.
ISSN:0022-4766
1573-8779
DOI:10.1007/BF02763811