Crystal structure and proton conductivity of BaZr0.9Sc0
Journal article, 2008

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

Author

Istaq Ahmed

Chalmers, Chemical and Biological Engineering, Environmental Inorganic Chemistry

Maths Karlsson

Chalmers, Applied Physics, Condensed Matter Physics

Sten Eriksson

Chalmers, Chemical and Biological Engineering, Environmental Inorganic Chemistry

Elisabet Ahlberg

University of Gothenburg

Christopher Knee

Chalmers, Applied Physics, Condensed Matter Physics

Kristian Larsson

Chalmers, Chemical and Biological Engineering, Environmental Inorganic Chemistry

A.K. Azad

University of St Andrews

Aleksandar Matic

Chalmers, Applied Physics, Condensed Matter Physics

Lars Börjesson

Chalmers, Applied Physics, Condensed Matter Physics

Journal of the American Ceramic Society

0002-7820 (ISSN)

Vol. 91 9 3039-3044

Subject Categories

Inorganic Chemistry

Other Engineering and Technologies not elsewhere specified

Other Materials Engineering

Condensed Matter Physics

Areas of Advance

Materials Science

DOI

10.1111/j.1551-2916.2008.02547.x

More information

Latest update

2/28/2018