| Autor: |
Miruszewski, Tadeusz, Strandbakke, Ragnar, Dzierzgowski, Kacper, Szpunar, Iga, Mielewczyk-Gryń, Aleksandra, Wachowski, Sebastian, Gazda, Maria |
| Zdroj: |
Journal of Materials Chemistry A; 6/14/2024, Vol. 12 Issue 22, p13488-13497, 10p |
| Abstrakt: |
In this work, partial protonic conductivity in mixed conducting (BZCY721) and BaGd0.3La0.7Co2O6-δ (BGLC137) was studied. For this purpose, a modified DC Hebb-Wagner polarization method was used. A four-wire type of galvanic cell as well as a suitable calculation model was applied. The method was validated using proton conducting electrolyte - BaZr0.7Ce0.2Y0.1O3-δ - as a reference material. For the first time, protonic partial conductivity in BaGd0.3La0.7Co2O6-d was determined. It was found that at 600 °C its total conductivity was ~550 S cm-1, whereas the partial protonic conductivity under the same conditions was 4.4 × 10-5 S cm-1 (protonic transference number of 7.6 × 10-8). Therefore, the proposed measurement cell and the applied model allowed for the determination of a minor protonic conductivity in the BGLC137 electronic conductor. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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