The diffusion of H2 in hexagonal ice at low temperatures

The diffusion of H2 in hexagonal ice at low temperatures

The diffusion of hydrogen molecules in hexagonal D2O ice (Ih) in the temperature range of 25–60 K was investigated by quasielastic neutron scattering. The observed spectra consist of a narrow elastic peak and a broad quasielastic component. The single-particle diffusion coefficient for H2 in D2O ice...

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Veröffentlicht in:The Journal of chemical physics 1994-10, Vol.101 (8), p.7177-7180
Hauptverfasser: Strauss, Herbert L., Chen, Zhan, Loong, C.-K.
Format: Artikel
Sprache:eng
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Zusammenfassung:The diffusion of hydrogen molecules in hexagonal D2O ice (Ih) in the temperature range of 25–60 K was investigated by quasielastic neutron scattering. The observed spectra consist of a narrow elastic peak and a broad quasielastic component. The single-particle diffusion coefficient for H2 in D2O ice was obtained using a simple model of diffusion and is remarkably high—comparable to the coefficient of H2 in a liquid.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.468303