Low-Temperature Dehydrogenation of LiBH4 through Destabilization with TiO2

The hydrogen desorption properties of lithium borohydride, LiBH 4, ball milled with titania, TiO 2, in varying proportions have been investigated. The multicomponent LiBH 4 −TiO 2 materials have been found to dehydrogenate at much lower temperatures. For example, the onset of dehydrogenation was 150 °C for a LiBH 4 −TiO 2 mixture with a mass ratio of 1:4 and the majority of the hydrogen could be released below 220 °C. XRD and in situ neutron diffraction results revealed that the destabilization of LiBH 4 by the oxide resulted from the formation of lithium titanate.