Astrophysical implications of amorphous ice - A microporous solid

Details Astrophysical implications of amorphous ice - A microporous solid Astrophysical implications of amorphous ice - A microporous solid

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986natur.319..298m&link_type=abstract

Nature (ISSN 0028-0836), vol. 319, Jan. 23, 1986, p. 298-301. FFWF-supported research.

Astronomy and Astrophysics

Astronomy

110

Adsorption, Amorphous Materials, Comet Nuclei, Ice, Interstellar Matter, Microporosity, Hydrogen Recombinations, Infrared Astronomy, Isotherms

Scientific paper

Since the observation of the 3-μm band in interstellar infrared sources, vapour-deposited amorphous ice, H2O(as), has been discussed as a major component of comets, of satellites of the outer planets and of interstellar dust. The authors have reinvestigated adsorption of N2 on H2O(as) and find that it is a microporous solid. The differences between adsorption phenomena taking place in micropores and on the surface of intermediate pores or non-porous adsorbents should be of general importance for the various speculations of the role of H2O(as) in space. In particular, the authors discuss the influence of micropores on the H2 recombination rate on H2O(as) in interstellar dust and on adsorption of volatile gases in comets.

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