Observation of Hydride Mobility in the Transition‐Metal Oxide Hydride LaSrCoO₃H0.7

The diffusion of hydride anions in LaSrCoO3H0.7 is measured for the first time. High-resolution quasielastic neutron scattering (QENS) data reveals the onset of mobility above 675 K, associated with hopping between vacant sites in the hydride anion sublattice (see figure). The temperature range at which hopping takes place is similar to the temperature used for the synthesis of the material, and is associated with loss of hydrogen gas from the sample. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2089/2006/c1266_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.