Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7745054 | Solid State Ionics | 2016 | 6 Pages |
Abstract
The consolidated composites were studied by impedance spectroscopy between 200 and 400 °C and at a fixed temperature of 600 °C with a scan in the partial pressure of oxygen. The composites did not exhibit high levels of ionic conductivity in the grain boundary nor the bulk. The conductivity of Na-free composites shows lower levels of conductivity than pure YSZ, while samples with Na showed increased conductivity. The conductivity of SrTiO3 exhibited an enhancement attributed to p-type conductivity, although contributions from protons cannot be disregarded as some Na doping is present.
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Authors
E. Ruiz-Trejo, K. Thyden, N. Bonanos, M.B. Mogensen,