TY - GEN
T1 - Composite cathodes on barium cerate proton conducting electrolyte for intermediate temperature solid oxide fuel cells (IT-SOFCs)
AU - Fabbri, Emiliana
AU - Licoccia, Silvia
AU - Traversa, Enrico
AU - Wachsman, Eric D.
PY - 2009
Y1 - 2009
N2 - Composite cathodes were investigated for application in intermediate temperature solid oxide fuel cells (IT-SOFCs) based on ceramic proton conducting electrolytes. Composite cathodes were made combining a mixed protonic/electronic conductor phase, BaCe0.9Yb0.1,O 3-delta; (1OYbBC), and a mixed oxygen-ion/electronic conductor. La0.6Sr0.4Co0.2Fe0.803 (LSCF). Area specific resistance (ASR) measurements were performed in wet air for LSCF/1OYbBC composite cathodes, changing the weight ratio between the solid phases, the particle size and the sintering procedure. For comparison, the ASR of single phase LSCF cathode was studied in the same conditions. The lowest ASR values were obtained from the LSCF/1OYbBC composite cathode prepared using nanometre particle powder of 1OYbBC and sub-micrometer particle powder of LSCF in a 1:1 weight ratio and sintered at 1100°C. Fuel cell polarization curves demonstrated superior performance of the LSCF/1OYbBC(l :1) cathode with respect to Pt.
AB - Composite cathodes were investigated for application in intermediate temperature solid oxide fuel cells (IT-SOFCs) based on ceramic proton conducting electrolytes. Composite cathodes were made combining a mixed protonic/electronic conductor phase, BaCe0.9Yb0.1,O 3-delta; (1OYbBC), and a mixed oxygen-ion/electronic conductor. La0.6Sr0.4Co0.2Fe0.803 (LSCF). Area specific resistance (ASR) measurements were performed in wet air for LSCF/1OYbBC composite cathodes, changing the weight ratio between the solid phases, the particle size and the sintering procedure. For comparison, the ASR of single phase LSCF cathode was studied in the same conditions. The lowest ASR values were obtained from the LSCF/1OYbBC composite cathode prepared using nanometre particle powder of 1OYbBC and sub-micrometer particle powder of LSCF in a 1:1 weight ratio and sintered at 1100°C. Fuel cell polarization curves demonstrated superior performance of the LSCF/1OYbBC(l :1) cathode with respect to Pt.
UR - http://www.scopus.com/inward/record.url?scp=70349283107&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:70349283107
SN - 9781605110981
SN - 9781605110981
T3 - Materials Research Society Symposium Proceedings
SP - 41
EP - 46
BT - Materials Research Society Symposium Proceedings - Solid-State Ionics - 2008
T2 - Solid-State Ionics 2008 - 2008 MRS Fall Meeting
Y2 - 1 December 2008 through 5 December 2008
ER -