Influences of fluorine containing compounds TiF4
and ZrF4 on hydrogen sorption properties of
LiBH4 have been investigated. Thermovolumetric measurements, titration, and XRD technique
were used to characterize the samples. The results demonstrated a pronounced beneficial effect
of both ZrF4 and TiF4
on the sorption properties of modified LiBH4. After hydrogenation at
400°C and 80 bar, formation of modified LiBH4
was observed as a consequence of F dissolution in LiH (LiH1-zFz). Adding TiF4 and ZrF4 to LiBH4 has been found to modify both
thermodynamic and kinetic properties.
