Szczegóły publikacji
Opis bibliograficzny
$Ba_{0.95}Ca_{0.05}Ce_{0.9}Y_{0.1}O_{3}$ as an electrolyte for proton-conducting ceramic fuel cells / M. DUDEK, B. LIS, R. LACH, [et al.], M. GAJEK, M. SITARZ, M. ZIĄBKA // Electrochimica Acta : Journal of the International Society of Electrochemistry ; ISSN 0013-4686 . — 2019 — vol. 304, s. 70–79. — Bibliogr. s. 78–79, Abstr. — Publikacja dostępna online od: 2019-02-27
Autorzy (12)
- AGHDudek Magdalena
- AGHLis Bartłomiej J.
- AGHLach Radosław
- Daugėla Salius
- Šalkus Tomas
- Kežionis Algimantas
- Mosiałek M.
- Socha Robert P.
- Morgiel Jerzy
- AGHGajek Marcin
- AGHSitarz Maciej
- AGHZiąbka Magdalena
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 120527 |
|---|---|
| Data dodania do BaDAP | 2019-03-18 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.electacta.2019.02.112 |
| Rok publikacji | 2019 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Electrochimica Acta |
Abstract
Comparative studies of the physicochemical and electrochemical properties of BaCe 0.9 Y 0.1 O 3 and Ba 0.95 Ca 0.05 Ce 0.9 Y 0.1 O 3 sintered ceramics are described. The orthorhombic (Pnma) space group was determined for both investigated samples within the temperature range 25–800 °C, using the X-ray diffraction method. A decrease in the cell volume of Ba 0.95 Ca 0.05 Ce 0.9 Y 0.1 O 3 compared to that of BaCe 0.9 Y 0.1 O 3 was observed within the investigated temperature range. It was found that the partial substitution of calcium for barium, resulting in Ba 0.95 Ca 0.05 Ce 0.9 Y 0.1 O 3 , caused an increase in specific free volume and global instability index compared to the original composition BaCe 0.9 Y 0.1 O 3 . Improvement of the chemical resistance of Ba 0.95 Ca 0.05 Ce 0.9 Y 0.1 O 3 in a CO 2 gas atmosphere was observed. It was found that Ba 0.95 Ca 0.05 Ce 0.9 Y 0.1 O 3 exhibited a slightly lower level of electrical conductivity than BaCe 0.9 Y 0.1 O 3 in air as well as in Ar–H 2 gas atmospheres. The greater chemical resistance of Ba 0.95 Ca 0.05 Ce 0.9 Y 0.1 O 3 in a CO 2 gas atmosphere enhances the suitability of the modified material as an electrolyte for fuel cells with proton-conducting ceramics. The electrochemical response of the interface (La 0.60 Sr 0.40 ) 0.95 Co 0.20 Fe 0.80 O 3−δ |Ba 0.95 Ca 0.05 C e0.9 Y 0.1 O 3 was also investigated within the applied potential range from −0.05 to −0.5 V in SOFC mode as well as from 0.05 to 0.5 V in SOEC mode); it was found that the current reached a fairly stable value over time. © 2019 Elsevier Ltd
