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包接水和物の熱力学的安定性 : 空洞の多重占有

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Title: 包接水和物の熱力学的安定性 : 空洞の多重占有
Other Titles: Thermodynamic stability of clathrate hydrates
Authors: 田中, 秀樹1 Browse this author →KAKEN DB
甲賀, 研一郎2 Browse this author
Authors(alt): Tanaka, Hideki1
Koga, Kenichiro2
Issue Date: 22-Mar-2006
Publisher: 北海道大学低温科学研究所
Journal Title: 低温科学
Journal Title(alt): Low temperature science
Volume: 64
Start Page: 183
End Page: 189
Abstract: van der Waals and Platteeuw理論を拡張して,空洞の多重占有を理論的に取り扱えるようにした.空洞の多重占有の自由エネルギーの簡単な計算法を示し,それをアルゴン包接水和物構造IIの大きい空洞の二重占有に適用した.二重占有は270MPa以上で重要になることが示された.
We have extended the van der Waals and Platteeuw theory to treat multiple occupancy of a single cage of clathrate hydrates. We propose a simple way to calculate the free energy of multiple cage occupancy,and then apply it to an argon clathrate structure II in which a larger cage can be occupied by two argon atoms. It is found that double occupancy dominates over single occupancy when the guest pressure in equilibrium with the clathrate hydrate exceeds 270 MPa.
Description: 3章 クラスレートハイドレート研究のフロンティア
Type: bulletin (article)
URI: http://hdl.handle.net/2115/8332
Appears in Collections:低温科学 = Low Temperature Science > 第64巻

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