A filled ice methane hydrate stable up to 1.5 Mbar

Conference Abstract International audience Gas hydrates, composed of a water framework filled with neutral guest molecules are important in many fields from energy storage to greenhouse-gas management, but are also considered as constituents of icy moon and planetary interiors. In this contribution...

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Bibliographic Details
Main Authors: Gaal, Richard, Schaack, Sofiane, Ranieri, Umbertoluca, Depondt, Philippe, Gillet, Philippe, Kuhs, W. F., Finocchi, Fabio, Bove, Livia Eleonora
Other Authors: Institut des Nanosciences de Paris (INSP), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Oxydes en basses dimensions (INSP-E9), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)
Format: Conference Object
Language:English
Published: HAL CCSD 2019
Subjects:
[PHYS.COND]Physics [physics]/Condensed Matter [cond-mat]
[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry
Methane hydrate
Online Access:https://hal.science/hal-03029397
Description
Summary:Conference Abstract International audience Gas hydrates, composed of a water framework filled with neutral guest molecules are important in many fields from energy storage to greenhouse-gas management, but are also considered as constituents of icy moon and planetary interiors. In this contribution we present high-pressure Raman spectroscopy data of CH 4-D 2 O hydrate up to 1.5 Mbar. By parallel molecular dynamics simulations we identify phase transitions and show that the stable phase up to the highest observed pressure is filled hexagonal ice Ih.

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