New ceramic superionic materials for IT-SOFC applications

• Autorzy: Paściak G. , Chmielowiec J. , Bujło P.
• Konferencja: Sol-Gel Materials Research, Technology, Applications SGM'04, 6-11 june 2004
• Języki publikacji: EN

Abstrakty

EN

The syntheses of new ceramic superionic materials based on Bi2O3 (BIMEVOX and ?-Bi2O3), their elemental analyses, thermodynamical stability, and electrical properties are presented. The materials show high ionic conductivities (ca. 0.1 S/cm) at a relatively low temperature (600 °C), which makes them applicable as electrolytes in IT-SOFC fuel cells. Ionic conductivity measurements of these materials were performed with the DC (four probe configuration) and IS (impedance spectroscopy) methods, whereas structural research was performed using X-ray spectroscopy. Investigations of the thermodynamic stability of the elaborated materials in oxygen-free atmosphere were also performed. Based on the results of the investigations, the most suitable superionic conductors for fuel cell were selected.

Słowa kluczowe

EN

impedance; ionic conductivity; fuel cells; membranes

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2005
• Tom: Vol. 23, No. 1
• Strony: 209--219
• Opis fizyczny: Bibliogr. 12 poz.

Twórcy

autor

Paściak G.

• Electrotechnical Institute Division of Electrotechnology and Materials Science ul. M.Skłodowskiej Curie 55/61, 50-369 Wrocław, Poland

autor

Chmielowiec J.

• Electrotechnical Institute Division of Electrotechnology and Materials Science ul. M.Skłodowskiej Curie 55/61, 50-369 Wrocław, Poland

autor

Bujło P.

• Electrotechnical Institute Division of Electrotechnology and Materials Science ul. M.Skłodowskiej Curie 55/61, 50-369 Wrocław, Poland

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