Abstract
The vibrational frequencies and diffusivities of N2 and O2 adsorbed in LiLSX have been studied by neutron scattering. Experiments were performed with the single components at 260 K, at various loadings. The stretching frequency of N2 in interaction with Li cations, as observed by inelastic neutron scattering, is compared with quantum chemical calculations. The transport diffusivities of N2 and O2 are derived from quasi-elastic neutron scattering, O2 diffusing faster than N2. The Darken approximation is found to be inexact, the corrected diffusivities of O2 and N2 decreasing with increasing loading.
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