Autor: Mosialek, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Ba0.5Sr0.5Co0.8Fe0.2O3-σ and La0.6Sr0.4Co0.8Fe0.2O3-σ composite cathode for solid oxide fuel cell
Autorzy:: Mosiałek, M.
Kędra, A.
Krzan, M.
Bielańska, E.
Tatko, M.
Powiązania:: https://bibliotekanauki.pl/articles/355878.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: barium strontium cobalt ferrite
lanthanum strontium cobalt ferrite
solid oxide fuel cell
oxygen reduction reaction
electrochemical impedance spectroscopy
Opis:: Composite cathodes contain Ba_0.5Sr_0.5Co_0.8Fe_0.2O_3-σ and La_0.6Sr_0.4Co_0.8Fe_0.2O_3-σ were tested in different configuration for achieving cathode of area specific resistance lower than Ba_0.5Sr_0.5Co_0.8Fe_0.2O_3-σ and La_0.6Sr_0.4Co_0.8Fe_0.2O_3-σ cathodes. Electrodes were screen printed on samaria-doped ceria electrolyte half-discs and tested in the three electrode setup by the electrochemical impedance spectroscopy. Microstructure was observed by scanning electron microscopy. The lowest area specific resistance 0.46 and 2.77 Ω cm^-2 at 700 °C and 600 °C respectively revealed composite cathode contain Ba_0.5Sr_0.5Co_0.8Fe_0.2O_3-σ and La_0.6Sr_0.4Co_0.8Fe_0.2O_3-σ in 1:1 weight ratio. The area specific resistance of this cathode is characterized by the lowest activation energy among tested cathodes.
Źródło:: Archives of Metallurgy and Materials; 2016, 61, 3; 1483-1488
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

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 Ce_0.8Sm_0.2O_1.9 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

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