| Publikationstyp: | Beitrag in wissenschaftlicher Zeitschrift |
| Art der Begutachtung: | Peer review (Publikation) |
| Titel: | Influence of strontium-rich pore-filling phase on the performance of La0.6Sr0.4CoO3−δ thin-film cathodes |
| Autor/-in: | Pecho, Omar Holzer, Lorenz Yáng, Zhèn Martynczuk, Julia Hocker, Thomas Flatt, Robert J. Prestat, Michel |
| DOI: | 10.1016/j.jpowsour.2014.10.060 |
| Erschienen in: | Journal of Power Sources |
| Band(Heft): | 274 |
| Seite(n): | 295 |
| Seiten bis: | 303 |
| Erscheinungsdatum: | 15-Jan-2015 |
| Verlag / Hrsg. Institution: | Elsevier |
| ISSN: | 0378-7753 1873-2755 |
| Sprache: | Englisch |
| Schlagwörter: | Map; MIEC; Cathode; SOFC |
| Fachgebiet (DDC): | 540: Chemie 621.3: Elektro-, Kommunikations-, Steuerungs- und Regelungstechnik |
| Zusammenfassung: | Nanoporous 1-μm thin La0.6Sr0.4CoO3−δ (LSC) layers are deposited by spray pyrolysis and subsequently sintered at 600°C, 800°C, and 1000°C. A strontium- and oxygen-rich phase can be found within the pore network, which appears at low sintering temperatures. This so-called “secondary phase” occupies up to 20.7 vol.% of the LSC films for the 600°C annealing process. It does not hinder the electrochemical activity towards oxygen reduction of such layers that exhibit an area-specific resistance (ASR) as low as 0.13 Ω cm2 at 600°C in air. This result makes the spray pyrolysed LSC thin films promising candidates as intermediate-temperature solid oxide fuel cell cathodes. For higher sintering temperatures the secondary phase progressively disappears. A correlation between the inverse of the ASR and the whole LSC surface area (regardless of the presence of the secondary phase or not) is also evidenced. The increase of ASR with increasing sintering temperature is found to be primarily related to the exchange neutral flux density of the Sr-deficient LSC. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/1630 |
| Volltext Version: | Publizierte Version |
| Lizenz (gemäss Verlagsvertrag): | Lizenz gemäss Verlagsvertrag |
| Departement: | School of Engineering |
| Organisationseinheit: | Institute of Computational Physics (ICP) |
| Enthalten in den Sammlungen: | Publikationen School of Engineering |
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Pecho, O., Holzer, L., Yáng, Z., Martynczuk, J., Hocker, T., Flatt, R. J., & Prestat, M. (2015). Influence of strontium-rich pore-filling phase on the performance of La0.6Sr0.4CoO3−δ thin-film cathodes. Journal of Power Sources, 274, 295–303. https://doi.org/10.1016/j.jpowsour.2014.10.060
Pecho, O. et al. (2015) ‘Influence of strontium-rich pore-filling phase on the performance of La0.6Sr0.4CoO3−δ thin-film cathodes’, Journal of Power Sources, 274, pp. 295–303. Available at: https://doi.org/10.1016/j.jpowsour.2014.10.060.
O. Pecho et al., “Influence of strontium-rich pore-filling phase on the performance of La0.6Sr0.4CoO3−δ thin-film cathodes,” Journal of Power Sources, vol. 274, pp. 295–303, Jan. 2015, doi: 10.1016/j.jpowsour.2014.10.060.
PECHO, Omar, Lorenz HOLZER, Zhèn YÁNG, Julia MARTYNCZUK, Thomas HOCKER, Robert J. FLATT und Michel PRESTAT, 2015. Influence of strontium-rich pore-filling phase on the performance of La0.6Sr0.4CoO3−δ thin-film cathodes. Journal of Power Sources. 15 Januar 2015. Bd. 274, S. 295–303. DOI 10.1016/j.jpowsour.2014.10.060
Pecho, Omar, Lorenz Holzer, Zhèn Yáng, Julia Martynczuk, Thomas Hocker, Robert J. Flatt, and Michel Prestat. 2015. “Influence of Strontium-Rich Pore-Filling Phase on the Performance of La0.6Sr0.4CoO3−δ Thin-Film Cathodes.” Journal of Power Sources 274 (January): 295–303. https://doi.org/10.1016/j.jpowsour.2014.10.060.
Pecho, Omar, et al. “Influence of Strontium-Rich Pore-Filling Phase on the Performance of La0.6Sr0.4CoO3−δ Thin-Film Cathodes.” Journal of Power Sources, vol. 274, Jan. 2015, pp. 295–303, https://doi.org/10.1016/j.jpowsour.2014.10.060.
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