| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 73810 | Microporous and Mesoporous Materials | 2013 | 5 Pages |
We present a detailed study of both structural and dynamics properties of methane confined phase in AlPO4-5 model alumino-phosphate, performed by neutron diffraction (CD4) and quasi-elastic incoherent neutron scattering (CH4). Such a system is a unique example of quasi-(1D) phase transition between two commensurate solids. When increasing the methane loading, we observe a first solidification of the CD4 confined phase giving rise to a commensurate methane “dimers” chain and a second one at higher loading giving rise to a commensurate methane “trimers” chain. Between the two methane confined solid phase a “re-entrant” fluid phase is observed.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Confined methane phase on AlPO4-5 model alumino-phosphate. ► Unique example of quasi-(1D) phase transition between two solids A and B. ► Solid-A is a commensurate methane “dimers” chains. ► Solid-B is e semi-commensurate methane “trimers” chains. ► In between the two solids A and B, a “re-entrant” fluid phase is observed.
