Electrical conductivity of the proton conductor BaZr&lt;SUB&gt;0.9&lt;/SUB&gt;Y&lt;SUB&gt;0.1&lt;/SUB&gt;O&lt;SUB&gt;3-δ&lt;/SUB&gt; obtained by high temperature annealing

Duval, S.B.C.; Holtappels, P.; Vogt, U.F.; Pomjakushina, E.; Conder, K.; Stimming, U.; Graule, T.

doi:10.1016/j.ssi.2007.08.006

Electrical conductivity of the proton conductor BaZr_0.9Y_0.1O_3-δ obtained by high temperature annealing

Duval SBC, Holtappels P, Vogt UF, Pomjakushina E, Conder K, Stimming U & Graule T

Citation

Duval, S. B. C., Holtappels, P., Vogt, U. F., Pomjakushina, E., Conder, K., Stimming, U., & Graule, T. (2007). Electrical conductivity of the proton conductor BaZr_0.9Y_0.1O_3-δ obtained by high temperature annealing. Solid State Ionics, 178(25-26), 1437-1441. https://doi.org/10.1016/j.ssi.2007.08.006

Persistent URL https://www.dora.lib4ri.ch/empa/islandora/object/empa:1929

The influence of a high temperature annealing (∼ 2200 °C) on the microstructure and the electrical properties of BaZr_0.9Y_0.1O_3-δ has been examined. The high temperature annealing was achieved using an optical floating zone furnace. The obtained sample is homogeneous with an average grain size of about 5 μm. No additional phases were found in the XRD pattern and the structure was identified to be cubic. After the high temperature annealing, the grain boundary conductivity is increased by approximately two orders of magnitude, while the bulk conductivity remains the same.

Details

Publication Type

Journal Article

Title

Electrical conductivity of the proton conductor BaZr_0.9Y_0.1O_3-δ obtained by high temperature annealing

Author(s)

Duval, S.B.C. (201 High Performance Ceramics)

Holtappels, P. (201 High Performance Ceramics)

Vogt, U.F. (201 High Performance Ceramics)

Pomjakushina, E.

Conder, K.

Stimming, U.