Phase changes of filled ice Ih methane hydrate under low temperature and high pressure

• Published in: The Journal of Chemical Physics
• Main Authors: Tanaka, Takehiko, Hirai, Hisako, Matsuoka, Takahiro, Ohishi, Yasuo, Yagi, Takehiko, Ohtake, Michika, Yamamoto, Yoshitaka, Nakano, Satoshi, Irifune, Tetsuo
• Format: Article in Journal/Newspaper
• Language: English
• Published: AIP Publishing 2013
• Subjects: Anvil; Methane hydrate
• Online Access: http://dx.doi.org/10.1063/1.4820358; https://pubs.aip.org/aip/jcp/article-pdf/doi/10.1063/1.4820358/13572751/104701_1_online.pdf

Low-temperature and high-pressure experiments were performed with filled ice Ih structure of methane hydrate under 2.0–77.0 GPa and 30–300 K using diamond anvil cells and a helium-refrigeration cryostat. In situ X-ray diffractometry revealed distinct changes in the compressibility of the axial ratio...