Szczegóły publikacji
Opis bibliograficzny
Electrical properties of $BaCeO_{3}$-based electrolytes for use in dual protonic ceramic-solid oxide fuel cells / R. GAWEŁ, K. PRZYBYLSKI // Acta Physica Polonica. A ; ISSN 0587-4246. — 2017 — vol. 131 no. 5, s. 1361–1366. — Bibliogr. s. 1365–1366. — 11th Polish-Japanese joint seminar on Micro and nano analysis : Gniew, September 11–14, 2016
Autorzy (2)
Dane bibliometryczne
| ID BaDAP | 119031 |
|---|---|
| Data dodania do BaDAP | 2019-01-10 |
| Tekst źródłowy | URL |
| DOI | 10.12693/APhysPolA.131.1361 |
| Rok publikacji | 2017 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Acta Physica Polonica, A |
Abstract
Bulk samples consisting of BaCe0.85Y0.15O3-delta (BCY15) and Ce0.85Y0.15O2-delta (YDC15) compounds, mixed together in different ratios, were studied as potential electrolytes in dual protonic ceramic-solid oxide fuel cells and compared with non-composite BCY15 and YDC15. The microstructures of the sintered materials indicate that BCY15 exhibits the largest grains, whereas composites have greater visible porosity than the non-composite samples. From X-ray diffraction studies it follows that BCY15 and YDC15 consist mainly of one phase, whereas the composites are two-phase materials. Electrochemical impedance spectroscopy studies at different temperatures show that the composite materials are capable of conduction the order of 10(-3) S/cm at temperatures above 500 degrees C in a hydrogen-containing atmosphere. Furthermore, activation energy values of the conductivity determined for the composites in air atmosphere are between those obtained for BCY15 (E-a = 0.590 +/- 0.017 eV) and YDC15 (E-a = 1.132N +/- 0.008 eV). From this it follows that both phases of the composites influence the electrical conductivity of the materials. In conclusion, BCY15 and the BCY15-YDC15 composites show promise for future use as electrolytes in dual protonic ceramic-solid oxide fuel cells.