We thank W. S. Howells for assistance with preliminary data collection, and C. M. Goodway, J. W. Dreyer, and A. D. Church for technical assistance with the furnace apparatus during the neutron experiments. Supporting Information is available online from Wiley InterScience or from the author.
Observation of Hydride Mobility in the Transition-Metal Oxide Hydride LaSrCoO3H0.7†
Article first published online: 24 NOV 2006
Copyright © 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 18, Issue 24, pages 3304–3308, December, 2006
How to Cite
Bridges, C. A., Fernandez-Alonso, F., Goff, J. P. and Rosseinsky, M. J. (2006), Observation of Hydride Mobility in the Transition-Metal Oxide Hydride LaSrCoO3H0.7. Adv. Mater., 18: 3304–3308. doi: 10.1002/adma.200601266
- Issue published online: 11 DEC 2006
- Article first published online: 24 NOV 2006
- Manuscript Revised: 4 AUG 2006
- Manuscript Received: 9 JUN 2006
- Conductivity, ionic;
- Fuel cells;
- Hydrogen storage;
- Ion mobility;
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.