2013 Fiscal Year Final Research Report
The study of structural stability of gas hydrates by using light scattering and NMR spectroscopies
| Project/Area Number |
23340100
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | Gifu University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KUME Tetsuji 岐阜大学, 工学部, 准教授 (30293541)
OKUCHI Takuo 岡山大学, 地球物質科学研究センター, 准教授 (40303599)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 物性実験 / 分子性固体 / ガスハイドレート / ラマン散乱 / ブリュアン散乱 / NMR / 高圧 |
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| Research Abstract |
In order to utilize a large amount of methane hydrate which exists under the deep sea floor and attracts much attention as an alternative energy resource, it is very important to investigate its elastic properties and structural stability. The purpose of the present study is to estimate the gas storage capacities, the pressure-induced phase transformations, and the elastic properties of methane-propane mixed gas hydrate (MPH) and fully deuterated methane hydrate (FDMH) by using high-pressure Raman and Brillouin scattering spectroscopies.
As a result, it is found out that the interaction between methane and water molecules of FDMH is possibly different from that of methane hydrate and the elastic properties of gas hydrates depend on their structures and the encaged gas molecules.
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[Journal Article] Pulsed neutron powder diffraction at high pressure by a capacity-increased sapphire anvil cell2013
Author(s)
T. Okuchi, M. Yoshida, Y. Ohno, N. Tomioka, N. Purevjav, T. Osakabe, S. Harjo, J. Abe, K. Aizawa, S. Sasaki
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Journal Title
High Pressure Research
Volume: Vol. 33, No.4
Pages: 777-786
DOI
Peer Reviewed
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[Journal Article] Neutron powder diffraction of small-volume samples at high pressure using compact opposed-anvil cells and focused beam2012
Author(s)
T. Okuchi, S. Sasaki, Y. Ohno, J. Abe, H. Arima, T. Osakabe, T. Hattori, A. Sano-Furukawa, K. Komatsu, H. Kagi, W. Utsumi, S. Harjo, T. Ito, K. Aizawa
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Journal Title
J. Phys. : Conf. Ser.
Volume: Vol. 377
Pages: 012013/1-6
DOI
Peer Reviewed
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[Presentation] 小型対向アンビルセルによる微小試料の高圧中性子粉末回折実験技術2011
Author(s)
奥地 拓生, 佐々木 重雄, 大野 祥希, 阿部 淳, 有馬 寛, 長壁 豊隆, 佐野 亜沙美, 服部 高典, 内海 渉, 小松 一生, 鍵 裕之
Organizer
第52回高圧討論会
Place of Presentation
沖縄キリスト教学院大学(沖縄県中頭郡西原町)
Year and Date
20111109-11
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[Presentation] Neutron powder diffraction using compact anvil cell and focused beam at J-PARC2011
Author(s)
T. Okuchi, S. Sasaki, Y. Ohno, J. Abe, H. Arima, T. Osakabe, A. Sano, T. Hattori, W. Ustumi, K. Komatsu, H. Kagi
Organizer
AIRAPT-23
Place of Presentation
Bhabha Atomic Research Centre, Mumbai, India
Year and Date
20110925-30
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