Abstract
We report that natrolite,Na16Al16Si24O48 center dot 16H(2)O, a small pore auxetic zeolite can incorporate significant amounts of Argon under moderate pressure- and temperature conditions resulting in Na16Al16Si24O80 center dot 16H(2)O center dot 6Ar. This material has a similar to 6.5% larger unit cell than natrolite at ambient conditions and its structure is related to Na16Al16Si24O80 center dot 24H(2)O, an intermediate superhydrated natrolite referred to as para-natrolite. Argon insertion under pressure into auxetic frameworks such as natrolites is an important and overlooked confinement mechanism with potential applications and implications.
Original language | English |
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Pages (from-to) | 6922-6927 |
Number of pages | 6 |
Journal | Journal of Physical Chemistry C |
Volume | 114 |
Issue number | 15 |
DOIs | |
Publication status | Published - 1 Apr 2010 |