Abstract
A key issue regarding the use of clathrates and semi-clathrate hydrates for practical gas storage is the pressure-temperature stability of the material. For many practical applications, the avoidance of cooling, gas overpressure, and mechanical mixing would be very desirable. Here, we show that porous emulsion-templated polymer supports greatly enhance methane uptake kinetics in tetra-iso-amylammonium bromide semi-clathrate hydrates without introducing complex mixing technologies. These systems show unprecedented thermal stability and can be decomposed upon demand to release the gas. Single crystal X-ray structure analysis of the semi-clathrates loaded with methane or krypton were obtained, confirming that the gases are stored in the dodecahedral A' and A'' cages.
Original language | English |
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Pages (from-to) | 3810-3815 |
Number of pages | 6 |
Journal | Chemistry of Materials |
Volume | 21 |
Issue number | 16 |
DOIs | |
Publication status | Published - 25 Aug 2009 |