SrCo0.9Sb0.1O3-δ cubic perovskite as a novel cathode for intermediate-to-low temperature solid oxide fuel cells

Bin Lin; Songlin Wang; Huili Liu; Kui Xie; Hanping Ding; Mingfei Liu; Guangyao Meng

doi:10.1016/j.jallcom.2008.05.056

SrCo_0.9Sb_0.1O_3-δ cubic perovskite as a novel cathode for intermediate-to-low temperature solid oxide fuel cells

Bin Lin, Songlin Wang, Huili Liu, Kui Xie, Hanping Ding, Mingfei Liu, Guangyao Meng^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

The SrCo_0.9Sb_0.1O_3-δ (SCS) composite oxide with cubic perovskite structure was synthesized by a modified Pechini method and examined as a novel cathode for intermediate-to-low temperature solid oxide fuel cells (ILT-SOFCs). At 700 °C and under open-circuit condition, symmetrical SCS cathode on Sm_0.2Ce_0.8O_1.9 (SDC) electrolyte showed low polarization resistances (R_p) of 0.09 Ω cm² in air. A porous layer of SCS was deposited on an anode-supported fuel cell consisting of a ∼30-μm thick dense electrolyte of SDC prepared by a cost-effective dip coating process and a NiO-SDC cermet as an anode (Ni-SDC/SDC/SCS). The obtained single cells were tested with humidified (∼3% H₂O) hydrogen as fuel and the static air as oxidant. A high open-circuit potential of 0.86 V, a maximum power density of 354 mW cm^-2, and a low polarization resistance of the electrodes of 0.13 Ω cm² was achieved at 650 °C.

Original language	English (US)
Pages (from-to)	556-558
Number of pages	3
Journal	Journal of Alloys and Compounds
Volume	472
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2008.05.056
State	Published - Mar 20 2009
Externally published	Yes

Keywords

Cathode
Cubic perovskite
Pechini
Solid oxide fuel cells
SrCoSbO

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2008.05.056

Cite this

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title = "SrCo0.9Sb0.1O3-δ cubic perovskite as a novel cathode for intermediate-to-low temperature solid oxide fuel cells",

abstract = "The SrCo0.9Sb0.1O3-δ (SCS) composite oxide with cubic perovskite structure was synthesized by a modified Pechini method and examined as a novel cathode for intermediate-to-low temperature solid oxide fuel cells (ILT-SOFCs). At 700 °C and under open-circuit condition, symmetrical SCS cathode on Sm0.2Ce0.8O1.9 (SDC) electrolyte showed low polarization resistances (Rp) of 0.09 Ω cm2 in air. A porous layer of SCS was deposited on an anode-supported fuel cell consisting of a ∼30-μm thick dense electrolyte of SDC prepared by a cost-effective dip coating process and a NiO-SDC cermet as an anode (Ni-SDC/SDC/SCS). The obtained single cells were tested with humidified (∼3% H2O) hydrogen as fuel and the static air as oxidant. A high open-circuit potential of 0.86 V, a maximum power density of 354 mW cm-2, and a low polarization resistance of the electrodes of 0.13 Ω cm2 was achieved at 650 °C.",

keywords = "Cathode, Cubic perovskite, Pechini, Solid oxide fuel cells, SrCoSbO",

author = "Bin Lin and Songlin Wang and Huili Liu and Kui Xie and Hanping Ding and Mingfei Liu and Guangyao Meng",

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T1 - SrCo0.9Sb0.1O3-δ cubic perovskite as a novel cathode for intermediate-to-low temperature solid oxide fuel cells

AU - Lin, Bin

AU - Wang, Songlin

AU - Liu, Huili

AU - Xie, Kui

AU - Ding, Hanping

AU - Liu, Mingfei

AU - Meng, Guangyao

PY - 2009/3/20

Y1 - 2009/3/20

N2 - The SrCo0.9Sb0.1O3-δ (SCS) composite oxide with cubic perovskite structure was synthesized by a modified Pechini method and examined as a novel cathode for intermediate-to-low temperature solid oxide fuel cells (ILT-SOFCs). At 700 °C and under open-circuit condition, symmetrical SCS cathode on Sm0.2Ce0.8O1.9 (SDC) electrolyte showed low polarization resistances (Rp) of 0.09 Ω cm2 in air. A porous layer of SCS was deposited on an anode-supported fuel cell consisting of a ∼30-μm thick dense electrolyte of SDC prepared by a cost-effective dip coating process and a NiO-SDC cermet as an anode (Ni-SDC/SDC/SCS). The obtained single cells were tested with humidified (∼3% H2O) hydrogen as fuel and the static air as oxidant. A high open-circuit potential of 0.86 V, a maximum power density of 354 mW cm-2, and a low polarization resistance of the electrodes of 0.13 Ω cm2 was achieved at 650 °C.

AB - The SrCo0.9Sb0.1O3-δ (SCS) composite oxide with cubic perovskite structure was synthesized by a modified Pechini method and examined as a novel cathode for intermediate-to-low temperature solid oxide fuel cells (ILT-SOFCs). At 700 °C and under open-circuit condition, symmetrical SCS cathode on Sm0.2Ce0.8O1.9 (SDC) electrolyte showed low polarization resistances (Rp) of 0.09 Ω cm2 in air. A porous layer of SCS was deposited on an anode-supported fuel cell consisting of a ∼30-μm thick dense electrolyte of SDC prepared by a cost-effective dip coating process and a NiO-SDC cermet as an anode (Ni-SDC/SDC/SCS). The obtained single cells were tested with humidified (∼3% H2O) hydrogen as fuel and the static air as oxidant. A high open-circuit potential of 0.86 V, a maximum power density of 354 mW cm-2, and a low polarization resistance of the electrodes of 0.13 Ω cm2 was achieved at 650 °C.

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KW - Pechini

KW - Solid oxide fuel cells

KW - SrCoSbO

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