Abstract
Three recent studies of the high-pressure transformations of methane hydrate [Chem. Phys. Lett. 325 (2000) 490; Proc. Natl. Acad. Sci. 97 (2000) 13484; Nature 410 (2001) 661] have reported apparently different behaviours. Detailed comparison of our X-ray and neutron diffraction data with those obtained in earlier work shows that there is in fact consistent behaviour on isothermal compression at room temperature with a transition from the clathrate I structure hydrate to a hexagonal hydrate with an unknown structure at ~0.9 GPa.
| Original language | English |
|---|---|
| Pages (from-to) | 459-465 |
| Number of pages | 7 |
| Journal | Chemical Physics Letters |
| Volume | 350 |
| Issue number | 5-6 |
| DOIs | |
| State | Published - Dec 28 2001 |
| Externally published | Yes |
Funding
We thank S.A. Belmonte, D.R. Allan, D.J. Francis and M. Hanfland for assistance with experiments and Y.P. Handa and D.D. Klug for sample preparation. This work is funded by the U.K. EPSRC and supported by the U.K. CLRC through access to beamtime at ISIS and SRS, and other resources. We also acknowledge support from the British Council via a Researcher Exchange Award and from the ESRF through the award of beamtime.
| Funders | Funder number |
|---|---|
| CLRC | |
| ISIS | |
| Scoliosis Research Society | |
| Engineering and Physical Sciences Research Council | |
| British Council | |
| European Synchrotron Radiation Facility |