Dual Pore Cathode Materials for Solid Oxide Fuel Cells

• Autorzy: Mosiałek M. , Zimowska M. , Kharitonov D. , Górski M. , Krzan M. , Komenda A.

Identyfikatory

DOI

10.24425/amm.2020.133241

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

solid oxide fuel cell; yttrium iron cobaltite; lanthanum strontium cobalt ferrite; composite cathode; electrochemical impedance spectroscopy

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2020
• Tom: Vol. 65, iss. 3
• Strony: 1217--1221
• Opis fizyczny: Bibliogr. 22 poz., fot., rys., wzory

Twórcy

autor

Mosiałek M.

• Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, Pl-30239 Kraków, Poland

autor

Zimowska M.

• Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, Pl-30239 Kraków, Poland

autor

Kharitonov D.

• Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, Pl-30239 Kraków, Poland

autor

Górski M.

• Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, Pl-30239 Kraków, Poland

autor

Krzan M.

• Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, Pl-30239 Kraków, Poland

autor

Komenda A.

• Research and Development Center of Technology for Industry, 59 Złota Str., 00-120 Warszawa, Poland

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).