- Tytuł:
- Dual Pore Cathode Materials for Solid Oxide Fuel Cells
- Autorzy:
-
Mosiałek, M.
Zimowska, M.
Kharitonov, D.
Górski, M.
Krzan, M.
Komenda, A. - Powiązania:
- https://bibliotekanauki.pl/articles/354965.pdf
- Data publikacji:
- 2020
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
solid oxide fuel cell
yttrium iron cobaltite
lanthanum strontium cobalt ferrite
composite cathode
electrochemical impedance spectroscopy - Opis:
- In this work, we developed the lanthanum strontium cobalt ferrite and it’s composite with yttrium iron cobaltite (mass ratio of 1:1) cathodes as a thin layer on Ce0.8Sm0.2O1.9 electrolyte. Two kinds of electrode pastes were prepared, with and without 6 mm polystyrene beads as an additional pore former. The performance of cathode materials was investigated by electrochemical impedance spectroscopy as a function of electrode morphology, oxygen partial pressure, potential, and temperature. The polarization resistance of the more porous electrodes was lower than those electrodes prepared without additional pore former in the whole potential range at 800°C, slightly lower at 700°C and 600°C. The addition of yttrium iron cobaltite decreased the performance of both types of cathodes. The lower polarization resistance of porous cathodes is due to the facilitated gas diffusion through their structure.
- Źródło:
-
Archives of Metallurgy and Materials; 2020, 65, 3; 1217-1221
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł