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The moment of initial crystallization captured on functionalized nanoparticles
Hironobu Machida, Takeshi Sugahara, Izumi Hirasawa
Communications Materials Vol. 2 No. 1 p. 66-1-66-7 2021年6月18日 研究論文(学術雑誌)
出版者・発行元:Springer Science and Business Media {LLC}
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Colossal barocaloric effects in plastic crystals.
Nature Vol. 567 No. 7749 p. 506-510 2019年3月 研究論文(学術雑誌)
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Enclathration of Ethane, Propane, and Propylene into Urea Clathrates and Roles of Methanol on Urea Clathrate Formation
Takahiro Yamazaki, Tomohiro Tanabe, Takeshi Sugahara
ACS Omega Vol. 3 No. 10 p. 13154-13159 2018年10月31日 研究論文(学術雑誌)
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Large-Cage Occupancies of Hydrogen in Binary Clathrate Hydrates Dependent on Pressures and Guest Concentrations
Takeshi Sugahara, Joanna C. Haag, Ashleigh A. Warntjes, Pinnelli S. R. Prasad, E. Dendy Sloan, Carolyn A. Koh, Amadeu K. Sum
JOURNAL OF PHYSICAL CHEMISTRY C Vol. 114 No. 35 p. 15218-15222 2010年9月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Increasing Hydrogen Storage Capacity Using Tetrahydrofuran
Takeshi Sugahara, Joanna C. Haag, Pinnelli S. R. Prasad, Ashleigh A. Warntjes, E. Dendy Sloan, Amadeu K. Sum, Carolyn A. Koh
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY Vol. 131 No. 41 p. 14616-+ 2009年10月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Effect of Anions on the Memory Effect in the Tetra-n-butylammonium Dicarboxylate Semiclathrate Hydrate Reformation
Kazuhiro Minamikawa, Jin Shimada, Takeshi Sugahara, Takayuki Hirai
Industrial & Engineering Chemistry Research Vol. 63 No. 43 p. 18435-18440 2024年10月21日 研究論文(学術雑誌)
出版者・発行元:
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Introduction of Cyclic Structures into Phosphonium Salts As Potential Guest Substances for Ionic Clathrate Hydrates
Keigo Kawabata, Sakura Azuma, Jin Shimada, Yusuke Tsuchida, Katsuhiko Tsunashima, Takeshi Sugahara, Atsushi Tani
ECS Transactions Vol. 114 No. 6 p. 75-79 2024年9月27日 研究論文(学術雑誌)
出版者・発行元:The Electrochemical Society
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Isothermal Phase Equilibria of the CH4+CO2 Mixed-Gas Hydrate System for CO2 Capture and Storage in a Reservoir after CH4 Hydrate Exploitation
Rintaro Miyatake, Takeshi Sugahara, Tasuku Ishikawa, Motoi Oshima, Yusuke Jin, Takayuki Hirai
Journal of Chemical & Engineering Data Vol. 69 p. 3210-3216 2024年8月29日 研究論文(学術雑誌)
出版者・発行元:
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Effects of Halide Anions on the Electrical Conductivity in Single-Crystalline Tetra-n-butylammonium Salt Semiclathrate Hydrates
Jin Shimada, Takeshi Sugahara, Atsushi Tani, Takahiro Ueda, Riko Tsugaya, Katsuhiko Tsunashima, Takayuki Hirai
Energy & Fuels Vol. 38 p. 6471-6477 2024年4月4日 研究論文(学術雑誌)
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Giant adiabatic temperature change and its direct measurement of a barocaloric effect in a charge-transfer solid
Shin-ichi Ohkoshi, Kosuke Nakagawa, Marie Yoshikiyo, Asuka Namai, Kenta Imoto, Yugo Nagane, Fangda Jia, Olaf Stefanczyk, Hiroko Tokoro, Junhao Wang, Takeshi Sugahara, Kouji Chiba, Kazuhiko Motodohi, Kazuo Isogai, Koki Nishioka, Takashi Momiki, Ryu Hatano
Nature Communications Vol. 14 No. 1 2023年12月27日 研究論文(学術雑誌)
出版者・発行元:
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Separation of Propane and Propylene by Urea Clathrate Formation
Ryosuke Kobatake, Takeshi Sugahara, Takayuki Hirai
Industrial & Engineering Chemistry Research Vol. 62 p. 21380-21384 2023年12月13日 研究論文(学術雑誌)
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Thermodynamic Properties of Tetra-n-butylammonium and Tetra-n-butylphosphonium Hydroxycarboxylate Semiclathrate Hydrates
Kazuhiro Minamikawa, Jin Shimada, Takeshi Sugahara, Takayuki Hirai
Journal of Chemical & Engineering Data Vol. 68 No. 12 p. 3492-3498 2023年11月30日 研究論文(学術雑誌)
出版者・発行元:
-
Quasi-Elastic Neutron Scattering Studies on Fast Dynamics of Water Molecules in Tetra-n-butylammonium Bromide Semiclathrate Hydrate
Jin Shimada, Atsushi Tani, Takeshi Yamada, Takeshi Sugahara, Takayuki Hirai, Takuo Okuchi
Applied Physics Letters Vol. 123 No. 4 p. 044104-1-6 2023年7月26日 研究論文(学術雑誌)
出版者・発行元:
-
Proton conduction in tetra-n-butylammonium bromide semiclathrate hydrate
Jin Shimada, Yuta Takaoka, Takahiro Ueda, Atsushi Tani, Takeshi Sugahara, Katsuhiko Tsunashima, Hirohisa Yamada, Takayuki Hirai
Solid State Ionics Vol. 393 p. 116188-116188 2023年5月 研究論文(学術雑誌)
出版者・発行元:
-
Peritectic phase behavior of tetra-n-butylphosphonium trifluoroacetate semiclathrate hydrate
Jin Shimada, Masami Shimada, Sakura Azuma, Takeshi Sugahara, Katsuhiko Tsunashima, Takayuki Hirai
Fluid Phase Equilibria Vol. 567 p. 113727-113727 2023年4月 研究論文(学術雑誌)
出版者・発行元:Elsevier BV
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Effect of introducing a cyclobutylmethyl group into an onium cation on the thermodynamic properties of ionic clathrate hydrates
Sakura Azuma, Jin Shimada, Katsuhiko Tsunashima, Takeshi Sugahara, Takayuki Hirai
New Journal of Chemistry Vol. 47 No. 1 p. 231-237 2023年1月 研究論文(学術雑誌)
出版者・発行元:Royal Society of Chemistry (RSC)
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Supercooling suppression in the tetrahydrofuran clathrate hydrate formation
Hironobu Machida, Takeshi Sugahara, Izumi Hirasawa
CrystEngComm Vol. 24 No. 38 p. 6730-6738 2022年10月 研究論文(学術雑誌)
出版者・発行元:Royal Society of Chemistry (RSC)
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Equilibrium Phase Relations and Dissociation Enthalpies of Tri-n-butylalkenylphosphonium Bromide Semiclathrate Hydrates
Sakura Azuma, Jin Shimada, Katsuhiko Tsunashima, Takeshi Sugahara, Atsushi Tani, Takayuki Hirai
Journal of Chemical & Engineering Data Vol. 67 No. 6 p. 1415-1420 2022年6月9日 研究論文(学術雑誌)
出版者・発行元:American Chemical Society (ACS)
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Pressure-induced evolution in the durability of nickel–metal hydride batteries under high-current charge
Kouji Maeda, Masato Moritoki, Shinji Yae, Keisuke Fukui, Naoki Fukumuro, Takeshi Sugahara
Physical Chemistry Chemical Physics Vol. 24 No. 22 p. 14085-14091 2022年6月 研究論文(学術雑誌)
出版者・発行元:
-
Thermodynamic Properties of Tetra-n-butylphosphonium Dicarboxylate Semiclathrate Hydrates
Jin Shimada, Moe Yamada, Atsushi Tani, Takeshi Sugahara, Katsuhiko Tsunashima, Yusuke Tsuchida, Takayuki Hirai
Journal of Chemical & Engineering Data Vol. 67 No. 1 p. 67-73 2022年1月 研究論文(学術雑誌)
出版者・発行元:
-
Phase equilibrium temperature and dissociation enthalpy in the tri-n-butylalkylphosphonium bromide semiclathrate hydrate systems
Jin Shimada, Masami Shimada, Takeshi Sugahara, Katsuhiko Tsunashima, Yuta Takaoka, Atsushi Tani
Chemical Engineering Science Vol. 236 p. 116514-116514 2021年6月 研究論文(学術雑誌)
出版者・発行元:Elsevier {BV}
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Calorimetric and Small-Angle X-ray Scattering Studies on the Memory Effect in the Tetra-n-butylammonium Bromide Semiclathrate Hydrate System
Hironobu Machida, Takeshi Sugahara, Hiroyasu Masunaga, Izumi Hirasawa
Journal of Crystal Growth Vol. 533 p. 125476-1-6 2020年3月 研究論文(学術雑誌)
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Thermodynamic Properties of Tetra-n-butylammonium 2-Ethylbutyrate Semiclathrate Hydrate for Latent Heat Storage
Takeshi Sugahara, Hironobu Machida, Sanehiro Muromachi, Norio Tenma
International Journal of Refrigeration Vol. 106 p. 113-119 2019年10月 研究論文(学術雑誌)
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Phase Equilibrium Relations for Tetra-n-Butylphosphonium Acetate Semiclathrate Hydrate Systems in the Presence of Methane, Carbon Dioxide, Nitrogen, or Ethane
Masami Shimada, Jin Shimada, Takeshi Sugahara, Katsuhiko Tsunashima
Fluid Phase Equilibria Vol. 488 p. 48-53 2019年6月 研究論文(学術雑誌)
-
Preparation of Dispersed Metal Nanoparticles in the Aqueous Solution of Metal Carboxylate and the Tetra-n-butylammonium Carboxylate
Hironobu Machida, Takeshi Sugahara, Izumi Hirasawa
Journal of Crystal Growth Vol. 514 p. 14-20 2019年5月 研究論文(学術雑誌)
-
Phase equilibrium relations of tetra-n-butylphosphonium propionate and butyrate semiclathrate hydrates
Jin Shimada, Masami Shimada, Takeshi Sugahara, Katsuhiko Tsunashima
Fluid Phase Equilibria Vol. 485 p. 61-66 2019年4月 研究論文(学術雑誌)
出版者・発行元:Elsevier {BV}
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Phase Equilibrium Relations of Semiclathrate Hydrates Based on Tetra-n-butylphosphonium Formate, Acetate, and Lactate
Jin Shimada, Masami Shimada, Takeshi Sugahara, Katsuhiko Tsunashima, Atsushi Tani, Yusuke Tsuchida, Masahiko Matsumiya
Journal of Chemical & Engineering Data Vol. 63 No. 9 p. 3615-3620 2018年9月 研究論文(学術雑誌)
出版者・発行元:ACS Publications
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Memory effect in tetra-: N -butyl ammonium bromide semiclathrate hydrate reformation: The existence of solution structures after hydrate decomposition
Hironobu Machida, Takeshi Sugahara, Izumi Hirasawa
CrystEngComm Vol. 20 No. 24 p. 3328-3334 2018年 研究論文(学術雑誌)
出版者・発行元:Royal Society of Chemistry
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Scanning Electron Microscopic Studies on the Methane Hydrate Decomposition Using the Freeze-Fracture Replica Method
Ayumi Fujimoto, Takeshi Sugahara
Bulletin of Glaciological Research Vol. 35 p. 39-45 2017年12月 研究論文(学術雑誌)
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Relationship between supercooling stability and solution structure in sodium acetate aqueous solution
Hironobu Machida, Takeshi Sugahara, Izumi Hirasawa
JOURNAL OF CRYSTAL GROWTH Vol. 475 p. 295-299 2017年10月 研究論文(学術雑誌)
出版者・発行元:ELSEVIER SCIENCE BV
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Dissociation and Nucleation of Tetra-n-butyl Ammonium Bromide Semi-Clathrate Hydrates at High Pressures
Takeshi Sugahara, Hironobu Machida
JOURNAL OF CHEMICAL AND ENGINEERING DATA Vol. 62 No. 9 p. 2721-2725 2017年9月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Four-Phase Equilibrium Relations Including Clathrate Hydrate Phase in a Ternary System of Xenon, Benzene, and Water
Takeshi Sugahara
JOURNAL OF CHEMICAL AND ENGINEERING DATA Vol. 61 No. 12 p. 4057-4060 2016年12月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Phase behavior of ethane hydrate system in the presence of ammonium bromide
Tatsuya Bando, Takeshi Sugahara
FLUID PHASE EQUILIBRIA Vol. 413 p. 36-40 2016年4月 研究論文(学術雑誌)
出版者・発行元:ELSEVIER SCIENCE BV
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In Situ Raman Spectroscopic Studies on Small-Cage Occupancy of Methane in the Simple Methane and Methane plus Deuterated Tetrahydrofuran Mixed Hydrates
Caroline T. Moryama, Takeshi Sugahara, Danilo Y. Yatabe Franco, Hiroko Mimachi
JOURNAL OF CHEMICAL AND ENGINEERING DATA Vol. 60 No. 12 p. 3581-3587 2015年12月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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High-Pressure Phase Equilibria of Tertiary-Butylamine Hydrates with and without Hydrogen
Tomohiro Tanabe, Takeshi Sugahara, Kazuma Kitamura, Takahiro Yamazaki, Takashi Fujimoto, Kazunari Ohgaki
JOURNAL OF CHEMICAL AND ENGINEERING DATA Vol. 60 No. 2 p. 222-227 2015年2月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Blue-Colored tert-Butylamine Clathrate Hydrate
Atsushi Tani, Satoshi Koyama, Yusuke Urabe, Kenji Takato, Takeshi Sugahara, Kazunari Ohgaki
JOURNAL OF PHYSICAL CHEMISTRY B Vol. 118 No. 47 p. 13409-13413 2014年11月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Synergistic Formation of Carboxyl and Methyl Radicals in CO2 + Methane Mixed Gas Hydrates
Motoi Oshima, Kazuma Kitamura, Atsushi Tani, Takeshi Sugahara, Kazunari Ohgaki
JOURNAL OF PHYSICAL CHEMISTRY B Vol. 118 No. 47 p. 13435-13439 2014年11月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Nucleophilic Reactions of Bromocyclopentane in the Structure-H Methane plus Bromocyclopentane Mixed Hydrate System at High Pressures
Yuuki Matsumoto, Yoshito Katsuta, Fumitaka Kamo, Tatsuya Bando, Takashi Makino, Takeshi Sugahara, Kazunari Ohgaki
JOURNAL OF PHYSICAL CHEMISTRY B Vol. 118 No. 47 p. 13404-13408 2014年11月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Thermodynamic Stability Boundaries and Structures of Methane plus Monohalogenated Cyclopentane Mixed Hydrates
Yuuki Matsumoto, Hiroaki Matsukawa, Fumitaka Karno, Young Bae Jeon, Yoshito Katsuta, Tatsuya Bando, Takashi Makino, Takeshi Sugahara, Kazunari Ohgaki
JOURNAL OF CHEMICAL AND ENGINEERING DATA Vol. 59 No. 7 p. 2294-2297 2014年7月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Investigating the Thermodynamic Stabilities of Hydrogen and Methane Binary Gas Hydrates
Yuuki Matsumoto, R. Gary Grim, Naveed M. Khan, Takeshi Sugahara, Kazunari Ohgaki, E. Dendy Sloan, Carolyn A. Koh, Amadeu K. Sum
JOURNAL OF PHYSICAL CHEMISTRY C Vol. 118 No. 7 p. 3783-3788 2014年2月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Reactions of HOCO radicals through hydrogen-atom hopping utilizing clathrate hydrates as an observational matrix
Motoi Oshima, Atsushi Tani, Takeshi Sugahara, Katsuhisa Kitano, Kazunari Ohgaki
PHYSICAL CHEMISTRY CHEMICAL PHYSICS Vol. 16 No. 8 p. 3792-3797 2014年 研究論文(学術雑誌)
出版者・発行元:ROYAL SOC CHEMISTRY
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Phase equilibrium relations for binary mixed hydrate systems composed of carbon dioxide and cyclopentane derivatives
Yuuki Matsumoto, Takashi Makino, Takeshi Sugahara, Kazunari Ohgaki
FLUID PHASE EQUILIBRIA Vol. 362 p. 379-382 2014年1月 研究論文(学術雑誌)
出版者・発行元:ELSEVIER SCIENCE BV
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In situ Raman spectra of hydrogen in large cages of hydrogen+tetrahydrofuran mixed hydrates
Akio Nishikawa, Tomohiro Tanabe, Kazuma Kitamura, Yuuki Matsumoto, Kazunari Ohgaki, Takeshi Sugahara
Chemical Engineering Science Vol. 101 p. 1-4 2013年9月20日 研究論文(学術雑誌)
出版者・発行元:Elsevier Ltd
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Enclathration of 2,3,3,3-tetrafluoropropene into structure-II hydrate with methane
Yoshito Katsuta, Shunsuke Hashimoto, Teruo Kido, Takeshi Sugahara, Kazunari Ohgaki
Journal of Chemical and Engineering Data Vol. 58 No. 9 p. 2596-2599 2013年9月12日 研究論文(学術雑誌)
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Structure-H methane + 1,1,2,2,3,3,4-heptafluorocyclopentane mixed hydrate at pressures up to 373 MPa
Sumihiro Suzuki, Yuuki Matsumoto, Yoshito Katsuta, Shunsuke Hashimoto, Takeshi Sugahara, Kazunari Ohgaki
Journal of Physical Chemistry A Vol. 117 No. 20 p. 4338-4341 2013年5月23日 研究論文(学術雑誌)
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Phase equilibrium relations and structural transition in the 1,1,1,2-tetrafluoroethane hydrate system
Yoshito Katsuta, Sumihiro Suzuki, Yuuki Matsumoto, Shunsuke Hashimoto, Takeshi Sugahara, Kazunari Ohgaki
Journal of Chemical and Engineering Data Vol. 58 No. 5 p. 1378-1381 2013年5月9日 研究論文(学術雑誌)
-
Isothermal Phase Equilibria for the CO2+1,1,1,2-Tetrafluoroethane and CO2+1,1-Difluoroethane Mixed-Gas Hydrate Systems
Sumihiro Suzuki, Kenjiro Yasuda, Yoshito Katsuta, Yuuki Matsumoto, Shunsuke Hashimoto, Takeshi Sugahara, Kazunari Ohgaki
JOURNAL OF CHEMICAL AND ENGINEERING DATA Vol. 58 No. 3 p. 780-784 2013年3月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Fast and reversible hydrogen storage in channel cages of hydroquinone clathrate
Kyu Won Han, Yun-Je Lee, Jin Seok Jang, Tae-In Jeon, Jeasung Park, Taro Kawamura, Yoshitaka Yamamoto, Takeshi Sugahara, Thomas Vogt, Jong-Won Lee, Yongjae Lee, Ji-Ho Yoon
CHEMICAL PHYSICS LETTERS Vol. 546 p. 120-124 2012年9月 研究論文(学術雑誌)
出版者・発行元:ELSEVIER SCIENCE BV
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Intermolecular Hydrogen Transfer in Isobutane Hydrate
Naohiro Kobayashi, Takashi Minami, Atsushi Tani, Mikio Nakagoshi, Takeshi Sugahara, Kei Takeya, Kazunari Ohgaki
ENERGIES Vol. 5 No. 6 p. 1705-1712 2012年6月 研究論文(学術雑誌)
出版者・発行元:MDPI AG
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Isothermal phase equilibria for the (HFC-32+HFC-134a) mixed-gas hydrate system
Hiroshi Miyauchi, Kenjiro Yasuda, Yuuki Matsumoto, Shunsuke Hashimoto, Takeshi Sugahara, Kazunari Ohgaki
JOURNAL OF CHEMICAL THERMODYNAMICS Vol. 47 p. 1-5 2012年4月 研究論文(学術雑誌)
出版者・発行元:ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
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Isothermal phase equilibria for the (xenon plus cyclopropane) mixed-gas hydrate system
Takeshi Sugahara, Hiroshi Miyauchi, Sumihiro Suzuki, Yuuki Matsumoto, Kenjiro Yasuda, Takashi Makino, Kazunari Ohgaki
JOURNAL OF CHEMICAL THERMODYNAMICS Vol. 47 p. 13-16 2012年4月 研究論文(学術雑誌)
出版者・発行元:ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
-
Intermolecular Hydrogen Transfer between Guest Species in Small and Large Cages of Methane plus Propane Mixed Gas Hydrates
Takeshi Sugahara, Yusuke Kobayashi, Atsushi Tani, Tatsuya Inoue, Kazunari Ohgaki
JOURNAL OF PHYSICAL CHEMISTRY A Vol. 116 No. 10 p. 2405-2408 2012年3月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
-
Thermodynamic stability of hydrogen plus tetra-n-butyl phosphonium bromide mixed semi-clathrate hydrate
Yuuya Fujisawa, Takaaki Tsuda, Shunsuke Hashimoto, Takeshi Sugahara, Kazunari Ohgaki
CHEMICAL ENGINEERING SCIENCE Vol. 68 No. 1 p. 660-662 2012年1月 研究論文(学術雑誌)
出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD
-
High-Pressure Phase Equilibrium and Raman Spectroscopic Studies on the 1,1-Difluoroethane (HFC-152a) Hydrate System
Takeshi Sugahara, Aki Endo, Hiroshi Miyauchi, Seung An Choi, Yuuki Matsumoto, Kenjiro Yasuda, Shunsuke Hashimoto, Kazunari Ohgaki
JOURNAL OF CHEMICAL AND ENGINEERING DATA Vol. 56 No. 12 p. 4592-4596 2011年12月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
-
Structural phase transitions of methane+ethane mixed-gas hydrate induced by 1,1-dimethylcyclohexane
Yuuki Matsumoto, Hiroshi Miyauchi, Takashi Makino, Takeshi Sugahara, Kazunari Ohgaki
CHEMICAL ENGINEERING SCIENCE Vol. 66 No. 12 p. 2672-2676 2011年6月 研究論文(学術雑誌)
出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD
-
In-situ ESR Observation of Free Radicals in Gas Hydrates under High Pressure
Atsushi Tani, Kenji Takato, Takeshi Sugahara, Kazunari Ohgaki, Kei Takeya
Physics and Chemistry of Ice 2010 Vol. 2010 p. 273-276 2011年4月 研究論文(学術雑誌)
出版者・発行元:Hokkaido University Press
-
Thermal Stability of Radicals Induced in Xenon Hydrate
Kei Takeya, Atsushi Tani, Takeshi Sugahara, Kazunari Ohgaki
Physics and Chemistry of Ice 2010 Vol. 2010 p. 267-271 2011年4月 研究論文(学術雑誌)
出版者・発行元:Hokkaido University Press
-
Decay Mechanisms of Radiation-Induced Radicals in Sulfur Hexafluoride Clathrate Hydrate
Kenji Takato, Atsushi Tani, Takeshi Sugahara, Kei Takeya, Kazunari Ohgaki
Physics and Chemistry of Ice 2010 Vol. 2010 p. 261-266 2011年4月 研究論文(学術雑誌)
出版者・発行元:Hokkaido University Press
-
Effect of Cyclopentane on Cage Occupancy of Hydrogen in Clathrate Hydrates
Takaaki Tsuda, Shunsuke Hashimoto, Takeshi Sugahara, Kazunari Ohgaki
Physics and Chemistry of Ice Vol. 2010 p. 277-281 2011年4月 研究論文(学術雑誌)
出版者・発行元:Hokkaido University Press
-
Large-Cage Occupancies of Molecular Hydrogen in Binary Clathrate Hydrates Dependent on Pressures
Takeshi Sugahara, Pinnelli S.R. Prasad, E. Dendy Sloan, Amadeu K. Sum, Carolyn A. Koh, Kazunari Ohgaki
Physicas and Chemistry of Ice Vol. 2010 p. 117-125 2011年4月 研究論文(学術雑誌)
出版者・発行元:Hokkaido University Press
-
Raman Spectroscopic Analysis of Mixed Gas Hydrate Crystals
Hiroko Mimachi, Masahiro Takahashi, Toru Iwasaki, Takahiro Kinoshita, Takeshi Sugahara, Hiroshi Sato, Kazunari Ohgaki
Physicas and Chemistry of Ice Vol. 2010 p. 243-247 2011年4月 研究論文(学術雑誌)
出版者・発行元:Hokkaido University Press
-
In-situ Raman Observation on Aqueous Solution around Tetra-n-Butyl Ammonium Bromide Semi-Clathrate Hydrate
Motoi Oshima, Shunsuke Hashimoto, Wataru Shimada, Atsushi Tani, Takeshi Sugahara, Kazunari Ohgaki
Physics and Chemistry of Ice 2010 Vol. 2010 p. 141-146 2011年4月 研究論文(学術雑誌)
出版者・発行元:Hokkaido University Press
-
Selective CO2 Trapping in Guest-Free Hydroquinone Clathrate Prepared by Gas-Phase Synthesis
Yun-Je Lee, Kyu Won Han, Jin Seok Jang, Tae-In Jeon, Jeasung Park, Taro Kawamura, Yoshitaka Yamamoto, Takeshi Sugahara, Thomas Vogt, Jong-Won Lee, Yongjae Lee, Ji-Ho Yoon
CHEMPHYSCHEM Vol. 12 No. 6 p. 1056-1059 2011年4月 研究論文(学術雑誌)
出版者・発行元:WILEY-BLACKWELL
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Competitive cage occupancy of hydrogen and argon in structure-II hydrates
Shingo Amano, Takaaki Tsuda, Shunsuke Hashimoto, Takeshi Sugahara, Kazunari Ohgaki
FLUID PHASE EQUILIBRIA Vol. 298 No. 1 p. 113-116 2010年11月 研究論文(学術雑誌)
出版者・発行元:ELSEVIER SCIENCE BV
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Isothermal Phase Equilibria for Binary Hydrate Systems of Carbon Dioxide plus Ethane and Carbon Dioxide plus Tetrafluoromethane
Yuuki Matsui, Yoshihiro Ogura, Hiroshi Miyauchi, Takashi Makino, Takeshi Sugahara, Kazunari Ohgaki
JOURNAL OF CHEMICAL AND ENGINEERING DATA Vol. 55 No. 9 p. 3297-3301 2010年9月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Hydrogen storage in trimethylamine hydrate: Thermodynamic stability and hydrogen storage capacity of hydrogen plus trimethylamine mixed semi-clathrate hydrate
Kyohei Ogata, Takaaki Tsuda, Shingo Amano, Shunsuke Hashimoto, Takeshi Sugahara, Kazunari Ohgaki
CHEMICAL ENGINEERING SCIENCE Vol. 65 No. 5 p. 1616-1620 2010年3月 研究論文(学術雑誌)
出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD
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Thermodynamic Stabilities of Tetra-n-butyl Ammonium Chloride + H(2), N(2), CH(4), CO(2), or C(2)H(6) Semiclathrate Hydrate Systems
Takashi Makino, Tomoyo Yamamoto, Kento Nagata, Hiromi Sakamoto, Shunsuke Hashimoto, Takeshi Sugahara, Kazunari Ohgaki
JOURNAL OF CHEMICAL AND ENGINEERING DATA Vol. 55 No. 2 p. 839-841 2010年2月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Thermodynamic Properties of Hydrogen + Tetra-n-Butyl Ammonium Bromide Semi-Clathrate Hydrate
Shunsuke Hashimoto, Takaaki Tsuda, Kyohei Ogata, Takeshi Sugahara, Yoshiro Inoue, Kazunari Ohgaki
Journal of Thermodynamics Vol. 2010 p. 1-5 2010年 研究論文(学術雑誌)
出版者・発行元:Hindawi Publishing Corporation
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Structural Transformations of sVI tert-Butylamine Hydrates to sII Binary Hydrates with Methane
Pinnelli S. R. Prasad, Takeshi Sugahara, E. Dendy Sloan, Amadeu K. Sum, Carolyn A. Koh
JOURNAL OF PHYSICAL CHEMISTRY A Vol. 113 No. 42 p. 11311-11315 2009年10月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Storage capacity of hydrogen in tetrahydrothiophene and furan clathrate hydrates
Takaaki Tsuda, Kyohei Ogata, Shunsuke Hashimoto, Takeshi Sugahara, Masato Moritoki, Kazunari Ohgaki
CHEMICAL ENGINEERING SCIENCE Vol. 64 No. 19 p. 4150-4154 2009年10月 研究論文(学術雑誌)
出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD
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Isothermal phase equilibria and structural phase transition in the carbon dioxide plus cyclopropane mixed-gas hydrate system
Takashi Makino, Yoshihiro Ogura, Yuuki Matsui, Takeshi Sugahara, Kazunari Ohgaki
FLUID PHASE EQUILIBRIA Vol. 284 No. 1 p. 19-25 2009年10月 研究論文(学術雑誌)
出版者・発行元:ELSEVIER SCIENCE BV
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High-Pressure Phase Equilibrium and Raman Spectroscopic Studies on the Nitrous Oxide Hydrate System
Takeshi Sugahara, Akira Kawazoe, Keisuke Sugahara, Kazunari Ohgaki
JOURNAL OF CHEMICAL AND ENGINEERING DATA Vol. 54 No. 8 p. 2301-2303 2009年8月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Tetra-n-butylammonium Borohydride Semiclathrate: A Hybrid Material for Hydrogen Storage
Kyuchul Shin, Yongkwan Kim, Timothy A. Strobel, P. S. R. Prasad, Takeshi Sugahara, Huen Lee, E. Dendy Sloan, Amadeu K. Sum, Carolyn A. Koh
JOURNAL OF PHYSICAL CHEMISTRY A Vol. 113 No. 23 p. 6415-6418 2009年6月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Hydrogen Storage in Double Clathrates with tert-Butylamine
Pinnelli S. R. Prasad, Takeshi Sugahara, Amadeu K. Sum, E. Dendy Sloan, Carolyn A. Koh
JOURNAL OF PHYSICAL CHEMISTRY A Vol. 113 No. 24 p. 6540-6543 2009年6月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Four-Phase Equilibrium Relations of Methane plus Methylcyclohexanol Stereoisomer plus Water Systems Containing Gas Hydrate
Takashi Makino, Michiko Mori, Yasutaka Mutou, Takeshi Sugahara, Kazunari Ohgaki
JOURNAL OF CHEMICAL AND ENGINEERING DATA Vol. 54 No. 3 p. 996-999 2009年3月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Thermodynamic and Raman spectroscopic studies on hydrogen plus tetra-n-butyl ammonium fluoride semi-clathrate hydrates
Jun Sakamoto, Shunsuke Hashimoto, Takaaki Tsuda, Takeshi Sugahara, Yoshiro Inoue, Kazunari Ohgaki
CHEMICAL ENGINEERING SCIENCE Vol. 63 No. 24 p. 5789-5794 2008年12月 研究論文(学術雑誌)
出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD
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Storage capacity of hydrogen in tetrahydrofuran hydrate
Kyohei Ogata, Shunsuke Hashimoto, Takeshi Sugahara, Masato Moritoki, Hiroshi Sato, Kazunari Ohgaki
CHEMICAL ENGINEERING SCIENCE Vol. 63 No. 23 p. 5714-5718 2008年12月 研究論文(学術雑誌)
出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD
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Isothermal Phase Equilibria for Methane + Ethane + Water Ternary System Containing Gas Hydrates
Shunsuke Hashimoto, Arata Sasatani, Yuuki Matsui, Takeshi Sugahara, Kazunari Ohgaki
The Open Thermodynamics Journal Vol. 2 No. 1 p. 100-105 2008年10月 研究論文(学術雑誌)
出版者・発行元:Bentham Science Publishers Ltd.
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Thermodynamic and Raman Spectroscopic Studies of Ar Hydrate System
Keisuke Sugahara, Ryuji Kaneko, Arata Sasatani, Takeshi Sugahara, Kazunari Ohgaki
The Open Thermodynamics Journal Vol. 2 No. 1 p. 95-99 2008年10月 研究論文(学術雑誌)
出版者・発行元:Bentham Science Publishers Ltd.
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Isothermal Phase Equilibria and Cage Occupancies for CH4 + CHF3 Mixed-Gas Hydrate System
Takashi Makino, Yuuki Kunita, Takeshi Sugahara, Kazunari Ohgaki
The Open Thermodynamics Journal Vol. 2 No. 1 p. 17-21 2008年4月7日 研究論文(学術雑誌)
出版者・発行元:Bentham Science Publishers Ltd.
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Thermodynamic stability of hydrogen plus tetra-n-butyl ammonium bromide mixed gas hydrate in nonstoichiometric aqueous solutions
Shunsuke Hashimoto, Takeshi Sugahara, Masato Moritoki, Hiroshi Sato, Kazunari Ohgaki
CHEMICAL ENGINEERING SCIENCE Vol. 63 No. 4 p. 1092-1097 2008年2月 研究論文(学術雑誌)
出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD
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Cage Occupancy of Hydrogen in Carbon Dioxide, Ethane, Cyclopropane, and Propane Hydrates
Kazunari Ohgaki, Takeshi Sugahara, Hiroki Mori, Jun Sakamoto, Shunsuke Hashimoto, Kyohei Ogata
The Open Thermodynamics Journal Vol. 2 No. 1 p. 1-6 2008年2月 研究論文(学術雑誌)
出版者・発行元:Bentham Science Publishers Ltd.
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Hydrogen transfer from guest molecule to radical in adjacent hydrate-cages
Kazunari Ohgaki, Kentaro Nakatsuji, Kei Takeya, Atsushi Tani, Takeshi Sugahara
PHYSICAL CHEMISTRY CHEMICAL PHYSICS Vol. 10 No. 1 p. 80-82 2008年 研究論文(学術雑誌)
出版者・発行元:ROYAL SOC CHEMISTRY
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Electron spin resonance study on gamma-ray-induced radical species in ethylene hydrate
Kei Takeya, Takeshi Sugahara, Kazunari Ohgaki, Atsushi Tani
RADIATION MEASUREMENTS Vol. 42 No. 8 p. 1301-1306 2007年9月 研究論文(学術雑誌)
出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD
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Fundamental Studies for a New H2 Separation Method Using Gas Hydrates
Shunsuke Hashimoto, Shu Murayama, Takeshi Sugahara, Kazunari Ohgaki
Physics and Chemistry of Ice Vol. 2006 p. 209-216 2007年5月 研究論文(学術雑誌)
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Effects of Large Guest Species on Thermodynamic Properties of Structure-H Hydrates
Takashi Makino, Takeshi Sugahara, Kazunari Ohgaki
Physics and Chemistry of Ice Vol. 2006 p. 363-370 2007年5月 研究論文(学術雑誌)
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ESR Observation of Self-Preservation Effect of Methane Hydrate
Kei Takeya, Kouhei Nango, Takeshi Sugahara, Atsushi Tani, Kazunari Ohgaki
Physics and Chemistry of Ice Vol. 2006 p. 585-591 2007年5月 研究論文(学術雑誌)
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Electron spin resonance study on gamma-ray-induced ethyl radical in ethane hydrate
Kei Takeya, Kouhei Nango, Takeshi Sugahara, Kazunari Ohgaki, Atsushi Tano, Hironori Ito, Michio Okada, Toshio Kasa
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS Vol. 46 No. 5A p. 3066-3070 2007年5月 研究論文(学術雑誌)
出版者・発行元:INST PURE APPLIED PHYSICS
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Thermodynamic stability of H2 + tetrahydrofuran mixed gas hydrate in nonstoichiometric aqueous solutions
Shunsuke Hashimoto, Takeshi Sugahara, Hiroshi Sato, Kazunari Ohgaki
JOURNAL OF CHEMICAL AND ENGINEERING DATA Vol. 52 No. 2 p. 517-520 2007年3月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Raman spectroscopic studies on methane plus tetrafluoromethane mixed-gas hydrate system
Yuuki Kunita, Takashi Makino, Takeshi Sugahara, Kazunari Ohgaki
FLUID PHASE EQUILIBRIA Vol. 251 No. 2 p. 145-148 2007年2月 研究論文(学術雑誌)
出版者・発行元:ELSEVIER SCIENCE BV
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Thermodynamic and Raman spectroscopic studies on H2+tetrahydrofuran+water and H2+tetra-n-butyl ammonium bromide+water mixtures containing gas hydrates
Shunsuke Hashimoto, Shu Murayama, Takeshi Sugahara, Hiroshi Sato, Kazunari Ohgaki
CHEMICAL ENGINEERING SCIENCE Vol. 61 No. 24 p. 7884-7888 2006年12月 研究論文(学術雑誌)
出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD
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Phase equilibria for H2 + CO2 plus tetrahydrofuran plus water mixtures containing gas hydrates
Shunsuke Hashimoto, Shu Murayama, Takeshi Sugahara, Kazunari Ohgaki
JOURNAL OF CHEMICAL AND ENGINEERING DATA Vol. 51 No. 5 p. 1884-1886 2006年9月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Thermodynamic and Raman spectroscopic studies on pressure-induced structural transition of SF6 hydrate
K Sugahara, M Yoshida, T Sugahara, K Ohgaki
JOURNAL OF CHEMICAL AND ENGINEERING DATA Vol. 51 No. 1 p. 301-304 2006年1月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Stability boundaries of tetrahydrofuran plus water system
T Makino, T Sugahara, K Ohgaki
JOURNAL OF CHEMICAL AND ENGINEERING DATA Vol. 50 No. 6 p. 2058-2060 2005年11月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Activation energy of methyl radical decay in methane hydrate
K Takeya, K Nango, T Sugahara, K Ohgaki, A Tani
JOURNAL OF PHYSICAL CHEMISTRY B Vol. 109 No. 44 p. 21086-21088 2005年11月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Phase equilibria for H2+CO2+H2O system containing gas hydrates
T Sugahara, S Murayama, S Hashimoto, K Ohgaki
FLUID PHASE EQUILIBRIA Vol. 233 No. 2 p. 190-193 2005年6月 研究論文(学術雑誌)
出版者・発行元:ELSEVIER SCIENCE BV
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Hydrate structural transition depending on the composition of methane plus cyclopropane mixed gas hydrate
T Makino, M Tongu, T Sugahara, K Ohgaki
FLUID PHASE EQUILIBRIA Vol. 233 No. 2 p. 129-133 2005年6月 研究論文(学術雑誌)
出版者・発行元:ELSEVIER SCIENCE BV
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Large pressure depression of methane hydrate by adding 1,1- dimethylcyclohexane
Tsutomu Hara, Shunsuke Hashimoto, Takeshi Sugahara, Kazunari Ohgaki
Chemical Engineering Science Vol. 60 No. 11 p. 3117-3119 2005年6月 研究論文(学術雑誌)
出版者・発行元:Elsevier
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Icosahedron cage occupancy of structure-H hydrate helped by Xe-1,1-, cis-1,2-, trans-1,2-, and cis-1,4-dimethylcyclohexanes
T Sugahara, T Hara, S Hashimoto, K Ohgaki
CHEMICAL ENGINEERING SCIENCE Vol. 60 No. 6 p. 1783-1786 2005年3月 研究論文(学術雑誌)
出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD
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Thermodynamic and Raman spectroscopic studies of Xe and Kr hydrates
K Sugahara, T Sugahara, K Ohgaki
JOURNAL OF CHEMICAL AND ENGINEERING DATA Vol. 50 No. 1 p. 274-277 2005年1月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Thermodynamic stability of structure-H hydrates of methylcyclopentane and cyclooctane helped by methane
T Makino, T Nakamura, T Sugahara, K Ohgaki
FLUID PHASE EQUILIBRIA Vol. 218 No. 2 p. 235-238 2004年4月 研究論文(学術雑誌)
出版者・発行元:ELSEVIER SCIENCE BV
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High-pressure phase behavior and cage occupancy for the CF4 hydrate system
K Sugahara, M Yoshida, T Sugahara, K Ohgaki
JOURNAL OF CHEMICAL AND ENGINEERING DATA Vol. 49 No. 2 p. 326-329 2004年3月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Gas hydration of trans-1,2-dimethylcyclohexane with cooperative assistance of methane and cis-1,2-dimethylcyclohexane
T Nakamura, T Makino, T Sugahara, K Ohgaki
CHEMICAL ENGINEERING SCIENCE Vol. 59 No. 1 p. 163-165 2004年1月 研究論文(学術雑誌)
出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD
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Stability boundary of the structure-H hydrate of cis-1,4-dimethyleyclohexane helped by methane
T Nakamura, T Sugahara, K Ohgaki
JOURNAL OF CHEMICAL AND ENGINEERING DATA Vol. 49 No. 1 p. 99-100 2004年1月 研究論文(学術雑誌)
出版者・発行元:AMER CHEMICAL SOC
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Thermodynamic stability and structure of nitrogen hydrate crystal
Keisuke Sugahara, Yuuki Tanaka, Takeshi Sugahara, Kazunari Ohgaki
Journal of Supramolecular Chemistry Vol. 2 No. 4-5 p. 365-368 2003年8月 研究論文(学術雑誌)
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Isothermal phase equilibria for the methane + ethylene mixed gas hydrate system
Takeshi Sugahara, Takashi Makino, Kazunari Ohgaki
Fluid Phase Equilibria Vol. 206 No. 1-2 p. 117-126 2003年4月30日 研究論文(学術雑誌)
出版者・発行元:Elsevier
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Phase transition from structure-H to structure-I in the methylcyclohexane plus xenon hydrate system
N Shimada, K Sugahara, T Sugahara, K Ohgaki
FLUID PHASE EQUILIBRIA Vol. 205 No. 1 p. 17-23 2003年3月 研究論文(学術雑誌)
出版者・発行元:ELSEVIER SCIENCE BV
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Thermodynamic Stability and Cage-Occupancy Limit for Structure-H Hydrates
Takeshi SUGAHARA, Toshiyuki NAKAMURA, Noriyuki SHIMADA, Keisuke SUGAHARA, Takashi MAKINO, Kazunari OHGAKI
The proceedings of the JSME annual meeting Vol. 2003.3 p. 365-366 2003年 研究論文(学術雑誌)
出版者・発行元:Japan Society of Mechanical Engineers
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Stability boundaries of gas hydrates helped by methane-structure-H hydrates of methylcyclohexane and cis-1,2-dimethylcyclohexane
T Nakamura, T Makino, T Sugahara, K Ohgaki
CHEMICAL ENGINEERING SCIENCE Vol. 58 No. 2 p. 269-273 2003年1月 研究論文(学術雑誌)
出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD
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Pressure dependence of small-cage occupancy in the cyclopropane hydrate system
Masaru Suzuki, Yuuki Tanaka, Takeshi Sugahara, Kazunari Ohgaki
Chemical Engineering Science Vol. 56 No. 6 p. 2063-2067 2001年4月10日 研究論文(学術雑誌)
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Stability boundaries and small hydrate-cage occupancy of ethylene hydrate system
T Sugahara, K Morita, K Ohgaki
CHEMICAL ENGINEERING SCIENCE Vol. 55 No. 24 p. 6015-6020 2000年12月 研究論文(学術雑誌)
出版者・発行元:PERGAMON-ELSEVIER SCIENCE LTD
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Border gas hydrate system having quadruple point of hydrate plus two liquids plus gas phases
T Sugahara, K Ohgaki
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN Vol. 33 No. 1 p. 174-176 2000年2月 研究論文(学術雑誌)
出版者・発行元:SOC CHEMICAL ENG JAPAN
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Phase behavior of xenon hydrate system
Kazunari Ohgaki, Takeshi Sugahara, Masaru Suzuki, Hitoshi Jindai
Fluid Phase Equilibria Vol. 175 No. 1-2 p. 1-6 2000年 研究論文(学術雑誌)
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Hysteresis in dissociation and reformation of methane hydrate crystal
K Ohgaki, T Sugahara, S Nakano
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN Vol. 32 No. 2 p. 235-236 1999年4月 研究論文(学術雑誌)
出版者・発行元:SOC CHEMICAL ENG JAPAN
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Non-equilibrium MD studies on gas permeation through carbon membranes with belt-like heterogeneous surfaces
S Furukawa, T Sugahara, T Nitta
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN Vol. 32 No. 2 p. 223-228 1999年4月 研究論文(学術雑誌)
出版者・発行元:SOC CHEMICAL ENG JAPAN