Effect of thermal history on lattice expansion and guest distribution of tetrahydrofuran clathrate hydrate with air molecules

被引：3

作者：

Koh, Dong-Yeun ^{[1
]}

Kang, Hyery ^{[1
]}

Park, Youngjune ^{[1
]}

Lee, Huen ^{[1
,2
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Chem & Biomol Engn, Taejon 305701, South Korea

[2] Korea Adv Inst Sci & Technol, Grad Sch EEWS, Taejon 305701, South Korea

来源：

CHEMICAL PHYSICS LETTERS | 2014年 / 597卷

基金：

新加坡国家研究基金会;

关键词：

ANTARCTIC ICE; NEUTRON-DIFFRACTION; CORE; NUCLEATION; NITROGEN; CRYSTAL;

D O I：

10.1016/j.cplett.2014.02.011

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Air hydrates can form under the high-pressure and low-temperature conditions found in deep ice sheets of the Arctic and Antarctic regions. These hydrates can play a major role in the analysis of data gathered in these regions. Through this Letter, we investigate on thermal expansivity and guest-molecule dynamics of THF + air clathrate hydrate provided by a neutron scattering experiment and address two noteworthy features. First is the effect of thermal history on host water-lattice expansion and related gas-inclusion effect on thermal expansion coefficients. Second is the changes in guest-molecule distribution during the degassing process caused by thermal stimulation. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：16 / 19

页数：4

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