Abstract
Porous La0.6Sr0.4CoO3-δ thin films were fabricated by pulsed laser deposition for being used as a cathode for micro solid oxide fuel cell applications as MEMS power generators. Symmetrical La0.6Sr0.4CoO3-δ/ yttria-stabilized zirconia/La0.6Sr0.4CoO3-δ free-standing membranes were fabricated using silicon as a substrate. A novel large-area membrane design based on grids of doped-silicon slabs was used. Thermomechanical stability of the tri-layer membranes was ensured in the intermediate range of temperatures up to 700 °C. In-plane conductivity of ca. 300 S cm-1 was measured for the cathode within the whole range of application temperatures. Finally, area specific resistance values below 0.3 Ω cm2 were measured for the cathode/electrolyte bi-layer at 700 °C in the exact final micro solid oxide fuel cell device configuration, thus presenting La0.6Sr0.4CoO3-δ as a good alternative for fabricating reliable micro solid oxide fuel cells for intermediate temperature applications.
© 2013 Elsevier B.V. All rights reserved.
| Original language | English |
|---|---|
| Journal | Journal of Power Sources |
| Volume | 248 |
| Pages (from-to) | 1042-1049 |
| ISSN | 0378-7753 |
| DOIs | |
| Publication status | Published - 2014 |
Keywords
- Micro solid oxide fuel cell
- Thin film cathode
- Self-supported electrolyte
- Lanthanum strontium cobaltite
- Microelectromechanical systems
Cite this
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Porous La0.6Sr0.4CoO3-δ thin film cathodes for large area micro solid oxide fuel cell power generators. / Garbayo, A.; Esposito, Vincenzo; Sanna, Simone; Morata, A.; Pla, D.; Fonseca, L.; Sabaté, N.
In: Journal of Power Sources, Vol. 248, 2014, p. 1042-1049.Research output: Contribution to journal › Journal article › Research › peer-review
TY - JOUR
T1 - Porous La0.6Sr0.4CoO3-δ thin film cathodes for large area micro solid oxide fuel cell power generators
AU - Garbayo, A.
AU - Esposito, Vincenzo
AU - Sanna, Simone
AU - Morata, A.
AU - Pla, D.
AU - Fonseca, L.
AU - Sabaté, N.
PY - 2014
Y1 - 2014
N2 - Porous La0.6Sr0.4CoO3-δ thin films were fabricated by pulsed laser deposition for being used as a cathode for micro solid oxide fuel cell applications as MEMS power generators. Symmetrical La0.6Sr0.4CoO3-δ/ yttria-stabilized zirconia/La0.6Sr0.4CoO3-δ free-standing membranes were fabricated using silicon as a substrate. A novel large-area membrane design based on grids of doped-silicon slabs was used. Thermomechanical stability of the tri-layer membranes was ensured in the intermediate range of temperatures up to 700 °C. In-plane conductivity of ca. 300 S cm-1 was measured for the cathode within the whole range of application temperatures. Finally, area specific resistance values below 0.3 Ω cm2 were measured for the cathode/electrolyte bi-layer at 700 °C in the exact final micro solid oxide fuel cell device configuration, thus presenting La0.6Sr0.4CoO3-δ as a good alternative for fabricating reliable micro solid oxide fuel cells for intermediate temperature applications. © 2013 Elsevier B.V. All rights reserved.
AB - Porous La0.6Sr0.4CoO3-δ thin films were fabricated by pulsed laser deposition for being used as a cathode for micro solid oxide fuel cell applications as MEMS power generators. Symmetrical La0.6Sr0.4CoO3-δ/ yttria-stabilized zirconia/La0.6Sr0.4CoO3-δ free-standing membranes were fabricated using silicon as a substrate. A novel large-area membrane design based on grids of doped-silicon slabs was used. Thermomechanical stability of the tri-layer membranes was ensured in the intermediate range of temperatures up to 700 °C. In-plane conductivity of ca. 300 S cm-1 was measured for the cathode within the whole range of application temperatures. Finally, area specific resistance values below 0.3 Ω cm2 were measured for the cathode/electrolyte bi-layer at 700 °C in the exact final micro solid oxide fuel cell device configuration, thus presenting La0.6Sr0.4CoO3-δ as a good alternative for fabricating reliable micro solid oxide fuel cells for intermediate temperature applications. © 2013 Elsevier B.V. All rights reserved.
KW - Micro solid oxide fuel cell
KW - Thin film cathode
KW - Self-supported electrolyte
KW - Lanthanum strontium cobaltite
KW - Microelectromechanical systems
U2 - 10.1016/j.jpowsour.2013.10.038
DO - 10.1016/j.jpowsour.2013.10.038
M3 - Journal article
VL - 248
SP - 1042
EP - 1049
JO - Journal of Power Sources
JF - Journal of Power Sources
SN - 0378-7753
ER -