Formation of gas hydrate during crystallization of ethane-saturated amorphous ice / Faizullin M. Z.,Vinogradov A. V.,Skokov V. N.,Koverda V. P. // RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A. - 2014. - V. 88, l. 10. - P. 1706-1711.

ISSN/EISSN:

0036-0244 / 1531-863X

Type:

Article

Abstract:

Layers of ethane-saturated amorphous ice were prepared by depositing molecular beams of water and gas on a substrate cooled with liquid nitrogen. The heating of the layers was accompanied by vitrification (softening) followed by spontaneous crystallization. Crystallization of condensates under the conditions of deep metastability proceeded with gas hydrate formation. The vitrification and crystallization temperatures of the condensates were determined from the changes in their dielectric properties on heating. The thermal effects of transformations were recorded by differential thermal analysis. The crystallization of the amorphous water layers was studied by electron diffraction. Formation of a metastable packing with elements of a cubic diamond-like structure was noted.

Author keywords:

amorphous ice; vitrification; crystallization; gas hydrates DIFFERENTIAL SCANNING CALORIMETRY; UNEXPECTEDLY STABLE NITROGEN; GLASS-TRANSITION; AQUEOUS-SOLUTIONS; SOLID WATER; MOLECULAR-BEAMS; X-RAY; TEMPERATURE; CONDENSATION; DIFFRACTION

DOI:

10.1134/S0036024414100124

Web of Science ID:

ISI:000341490800015

Соавторы в МНС:

Другие поля

Поле	Значение
Month	OCT
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1531-863X
Keywords-Plus	DIFFERENTIAL SCANNING CALORIMETRY; UNEXPECTEDLY STABLE NITROGEN; GLASS-TRANSITION; AQUEOUS-SOLUTIONS; SOLID WATER; MOLECULAR-BEAMS; X-RAY; TEMPERATURE; CONDENSATION; DIFFRACTION
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Physical
Author-Email	faizullin@itp.uran.ru
Funding-Acknowledgement	Russian Foundation for Basic Research {[}12-08-00017-a]; Ural Branch of the Russian Academy of Sciences {[}12-C-2-1001]
Funding-Text	This study was financially supported by the Russian Foundation for Basic Research (project no. 12-08-00017-a) and the Fundamental Research Program of the Ural Branch of the Russian Academy of Sciences (project no. 12-C-2-1001).
Number-of-Cited-References	24
Usage-Count-Since-2013	12
Journal-ISO	Russ. J. Phys. Chem. A
Doc-Delivery-Number	AO6VR