Benel, Cahit ; Darbandi, Azad J. ; Djenadic, Ruzica ; Evans, Anna ; Tölke, René ; Prestat, Michel ; Hahn, Horst (2013)
Synthesis and characterization of nanoparticulate La0.6Sr0.4CoO3−δ cathodes for thin-film solid oxide fuel cells.
In: Journal of Power Sources, 229
doi: 10.1016/j.jpowsour.2012.11.149
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Nanocrystalline La0.6Sr0.4CoO3−δ (LSC) powder with an ultrafine microstructure is synthesized via salt-assisted spray pyrolysis and subsequently stabilized in water-based dispersions. Nanoparticulate cathode thin films of LSC and LSC–GDC (gadolinium doped ceria) nanocomposites (with 10–40 wt% of GDC) are prepared via single step spin coating on yttria stabilized zirconia (YSZ) substrates. In order to prevent the chemical reaction between the cathode and the electrolyte, a thin buffer layer of GDC is deposited using spin coating on the YSZ substrates. The electrochemical performance of the thin film cathodes is measured by impedance spectroscopy on symmetrical cells in the temperature range of 450–650 °C. LSC cathode thin films (250 nm thick) with 30 wt% GDC content exhibit the lowest area specific resistance (ASR) values of 0.32, 0.78 and 2.04 Ω cm2 in ambient air at 650, 600 and 550 °C, respectively.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2013 |
| Autor(en): | Benel, Cahit ; Darbandi, Azad J. ; Djenadic, Ruzica ; Evans, Anna ; Tölke, René ; Prestat, Michel ; Hahn, Horst |
| Art des Eintrags: | Bibliographie |
| Titel: | Synthesis and characterization of nanoparticulate La0.6Sr0.4CoO3−δ cathodes for thin-film solid oxide fuel cells |
| Sprache: | Englisch |
| Publikationsjahr: | 1 Mai 2013 |
| Verlag: | Elsevier Science Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Power Sources |
| Jahrgang/Volume einer Zeitschrift: | 229 |
| DOI: | 10.1016/j.jpowsour.2012.11.149 |
| Kurzbeschreibung (Abstract): | Nanocrystalline La0.6Sr0.4CoO3−δ (LSC) powder with an ultrafine microstructure is synthesized via salt-assisted spray pyrolysis and subsequently stabilized in water-based dispersions. Nanoparticulate cathode thin films of LSC and LSC–GDC (gadolinium doped ceria) nanocomposites (with 10–40 wt% of GDC) are prepared via single step spin coating on yttria stabilized zirconia (YSZ) substrates. In order to prevent the chemical reaction between the cathode and the electrolyte, a thin buffer layer of GDC is deposited using spin coating on the YSZ substrates. The electrochemical performance of the thin film cathodes is measured by impedance spectroscopy on symmetrical cells in the temperature range of 450–650 °C. LSC cathode thin films (250 nm thick) with 30 wt% GDC content exhibit the lowest area specific resistance (ASR) values of 0.32, 0.78 and 2.04 Ω cm2 in ambient air at 650, 600 and 550 °C, respectively. |
| Freie Schlagworte: | Solid oxide fuel cell (SOFC), Micro-SOFC, La0.6Sr0.4CoO3−δ (LSC), Thin film, Cathode, Salt-assisted spray pyrolysis |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Gemeinschaftslabor Nanomaterialien 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 06 Feb 2014 08:57 |
| Letzte Änderung: | 06 Feb 2014 08:57 |
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