X-Ray diffraction study of high-pressure gas clathrates

This proposal aims to investigate mixed gas clathrates of CH4 and CO2 at high-pressure conditions relevant for icy moons of Jupiter and Saturn. The samples will be synthesized at and characterised by Raman spectroscopy at Laboratory of Geosciences and Planetology (LPG, Nantes) while powder and single-crystal X-Ray diffraction will be collected at ID27 at several pressure steps up to 3 GPa. This experiment will allow to define the correlation between chemistry of gas clathrates and the pressure-induced transitional pathway.