| Publikationstyp: | Beitrag in wissenschaftlicher Zeitschrift |
| Art der Begutachtung: | Peer review (Publikation) |
| Titel: | Synthesis and performance of A-site deficient lanthanum-doped strontium titanate by nanoparticle based spray pyrolysis |
| Autor/-in: | Burnat, Dariusz Artur Heel, Andre Holzer, Lorenz Kata, Dariusz Lis, Jerzy Graule, Thomas J. |
| DOI: | 10.1016/j.jpowsour.2011.10.088 |
| Erschienen in: | Journal of Power Sources |
| Band(Heft): | 201 |
| Seite(n): | 26 |
| Seiten bis: | 36 |
| Erscheinungsdatum: | Mär-2012 |
| Verlag / Hrsg. Institution: | Elsevier |
| ISSN: | 0378-7753 1873-2755 |
| Sprache: | Englisch |
| Fachgebiet (DDC): | 620.11: Werkstoffe |
| Zusammenfassung: | In this study A-site deficient lanthanum doped strontium titanate, which is considered as a promising, redox-stable candidate for full ceramic anodes in Solid Oxide Fuel Cells (SOFCs), was produced by nanoparticle-based spray pyrolysis. In this process cost-effective nitrate salts and titania nanoparticles are used as precursors. LST with a nominal composition of La_0.2Sr_0.7TiO3 showed limited stability at temperatures higher than 1290°C. It was observed that minor contents of secondary phases, which form at elevated temperatures, invoke a drastic loss of the electrical performance. Thermal stability is significantly increased by a slight enrichment of strontium. The phase pure A-site deficient LST shows remarkably higher electrical performance than similar stoichiometric counterparts. Reductive sintering results in a conductivity as high as 600 S cm−1 at 600°C. Furthermore the A-site deficient LST shows a high redox-stability and fast redox-kinetics. With these properties LST is a suitable material for the fabrication of a new generation of Ni-free ceramic SOFC anodes. Secondary phases have a significant influence on the electrical conductivity and redox behaviour. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/2197 |
| Volltext Version: | Publizierte Version |
| Lizenz (gemäss Verlagsvertrag): | Lizenz gemäss Verlagsvertrag |
| Departement: | School of Engineering |
| Organisationseinheit: | Institute of Computational Physics (ICP) Institute of Materials and Process Engineering (IMPE) |
| Enthalten in den Sammlungen: | Publikationen School of Engineering |
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Burnat, D. A., Heel, A., Holzer, L., Kata, D., Lis, J., & Graule, T. J. (2012). Synthesis and performance of A-site deficient lanthanum-doped strontium titanate by nanoparticle based spray pyrolysis. Journal of Power Sources, 201, 26–36. https://doi.org/10.1016/j.jpowsour.2011.10.088
Burnat, D.A. et al. (2012) ‘Synthesis and performance of A-site deficient lanthanum-doped strontium titanate by nanoparticle based spray pyrolysis’, Journal of Power Sources, 201, pp. 26–36. Available at: https://doi.org/10.1016/j.jpowsour.2011.10.088.
D. A. Burnat, A. Heel, L. Holzer, D. Kata, J. Lis, and T. J. Graule, “Synthesis and performance of A-site deficient lanthanum-doped strontium titanate by nanoparticle based spray pyrolysis,” Journal of Power Sources, vol. 201, pp. 26–36, Mar. 2012, doi: 10.1016/j.jpowsour.2011.10.088.
BURNAT, Dariusz Artur, Andre HEEL, Lorenz HOLZER, Dariusz KATA, Jerzy LIS und Thomas J. GRAULE, 2012. Synthesis and performance of A-site deficient lanthanum-doped strontium titanate by nanoparticle based spray pyrolysis. Journal of Power Sources. März 2012. Bd. 201, S. 26–36. DOI 10.1016/j.jpowsour.2011.10.088
Burnat, Dariusz Artur, Andre Heel, Lorenz Holzer, Dariusz Kata, Jerzy Lis, and Thomas J. Graule. 2012. “Synthesis and Performance of A-Site Deficient Lanthanum-Doped Strontium Titanate by Nanoparticle Based Spray Pyrolysis.” Journal of Power Sources 201 (March): 26–36. https://doi.org/10.1016/j.jpowsour.2011.10.088.
Burnat, Dariusz Artur, et al. “Synthesis and Performance of A-Site Deficient Lanthanum-Doped Strontium Titanate by Nanoparticle Based Spray Pyrolysis.” Journal of Power Sources, vol. 201, Mar. 2012, pp. 26–36, https://doi.org/10.1016/j.jpowsour.2011.10.088.
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