Journal
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
Volume 91, Issue 9, Pages 3039-3044Publisher
WILEY
DOI: 10.1111/j.1551-2916.2008.02547.x
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Funding
- Swedish Research Council
- National Graduate School in Material Science
- Chalmers University of Technology, Gothenburg, Sweden
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Solid-state sintering has been used to prepare the perovskite BaZr0.9Sc0.1O3-delta. Analysis of X-ray powder diffraction data shows that an increase of the unit cell parameter, a, was observed after deuteration. Rietveld analysis of room-temperature neutron powder diffraction data confirmed cubic symmetry (space group Pm-3m). Dynamic thermogravimetric analysis indicates that the hydration process occurs below 335 degrees C and approximately 58% of the theoretical number of protonic defects can be filled. The presence of protons/deutrons is seen from the strong O-H/O-D stretch band in the infrared spectrum of the hydrated/deuterated samples. The proton conductivity of a prehydrated sample was investigated under dry and wet Ar atmospheres.
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