Layered perovskite oxide Y0.8Ca0.2BaCoFeO5+δ as a novel cathode material for intermediate-temperature solid oxide fuel cells

Lianghao Yu; Yonghong Chen; Qingwen Gu; Dong Tian; Xiaoyong Lu; Guangyao Meng; Bin Lin

doi:10.1016/S1002-0721(14)60450-6

Layered perovskite oxide Y_0.8Ca_0.2BaCoFeO₅₊_δ as a novel cathode material for intermediate-temperature solid oxide fuel cells

Lianghao Yu, Yonghong Chen^*, Qingwen Gu, Dong Tian, Xiaoyong Lu, Guangyao Meng, Bin Lin

^*Corresponding author for this work

Physical Sciences and Engineering

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

12 Scopus citations

Abstract

A layered perovskite oxide Y_0.8Ca_0.2BaCoFeO_5+d (YCBCF) was synthesized as a novel cathode material for intermediate-temperature solid oxide fuel cells (IT-SOFCs) by citric acid-nitrates self-propagating combustion method. The phase and microstructure of YCBCF were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. The average thermal expansion coefficient (TEC) of YCBCF was 14.6×10^-6 K^-1, which was close to other materials of SOFC at the range of RT-1000 °C. An open-circuit potential of 0.75 V and a maximum output power density of 426 mW/cm² were obtained at 650 °C in a Sm_0.2Ce_0.8O_1.9 (SDC)-based anode-supported SOFC by using humidified (∼3% H₂O) hydrogen as fuel and static air as oxidant. The results indicated that the YCBCF was a promising cathode candidate for IT-SOFCs.

Original language	English (US)
Pages (from-to)	519-523
Number of pages	5
Journal	Journal of Rare Earths
Volume	33
Issue number	5
DOIs	https://doi.org/10.1016/S1002-0721(14)60450-6
State	Published - May 1 2015

Bibliographical note

Publisher Copyright:
© 2015 The Chinese Society of Rare Earths.

Keywords

SmCeO
cathode
perovskite
rare earths
solid oxide fuel cell

ASJC Scopus subject areas

General Chemistry
Geochemistry and Petrology

Access to Document

10.1016/S1002-0721(14)60450-6

Cite this

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title = "Layered perovskite oxide Y0.8Ca0.2BaCoFeO5+δ as a novel cathode material for intermediate-temperature solid oxide fuel cells",

abstract = "A layered perovskite oxide Y0.8Ca0.2BaCoFeO5+d (YCBCF) was synthesized as a novel cathode material for intermediate-temperature solid oxide fuel cells (IT-SOFCs) by citric acid-nitrates self-propagating combustion method. The phase and microstructure of YCBCF were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. The average thermal expansion coefficient (TEC) of YCBCF was 14.6×10-6 K-1, which was close to other materials of SOFC at the range of RT-1000 °C. An open-circuit potential of 0.75 V and a maximum output power density of 426 mW/cm2 were obtained at 650 °C in a Sm0.2Ce0.8O1.9 (SDC)-based anode-supported SOFC by using humidified (∼3% H2O) hydrogen as fuel and static air as oxidant. The results indicated that the YCBCF was a promising cathode candidate for IT-SOFCs.",

keywords = "SmCeO, cathode, perovskite, rare earths, solid oxide fuel cell",

author = "Lianghao Yu and Yonghong Chen and Qingwen Gu and Dong Tian and Xiaoyong Lu and Guangyao Meng and Bin Lin",

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doi = "10.1016/S1002-0721(14)60450-6",

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T1 - Layered perovskite oxide Y0.8Ca0.2BaCoFeO5+δ as a novel cathode material for intermediate-temperature solid oxide fuel cells

AU - Yu, Lianghao

AU - Chen, Yonghong

AU - Gu, Qingwen

AU - Tian, Dong

AU - Lu, Xiaoyong

AU - Meng, Guangyao

AU - Lin, Bin

PY - 2015/5/1

Y1 - 2015/5/1

N2 - A layered perovskite oxide Y0.8Ca0.2BaCoFeO5+d (YCBCF) was synthesized as a novel cathode material for intermediate-temperature solid oxide fuel cells (IT-SOFCs) by citric acid-nitrates self-propagating combustion method. The phase and microstructure of YCBCF were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. The average thermal expansion coefficient (TEC) of YCBCF was 14.6×10-6 K-1, which was close to other materials of SOFC at the range of RT-1000 °C. An open-circuit potential of 0.75 V and a maximum output power density of 426 mW/cm2 were obtained at 650 °C in a Sm0.2Ce0.8O1.9 (SDC)-based anode-supported SOFC by using humidified (∼3% H2O) hydrogen as fuel and static air as oxidant. The results indicated that the YCBCF was a promising cathode candidate for IT-SOFCs.

AB - A layered perovskite oxide Y0.8Ca0.2BaCoFeO5+d (YCBCF) was synthesized as a novel cathode material for intermediate-temperature solid oxide fuel cells (IT-SOFCs) by citric acid-nitrates self-propagating combustion method. The phase and microstructure of YCBCF were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. The average thermal expansion coefficient (TEC) of YCBCF was 14.6×10-6 K-1, which was close to other materials of SOFC at the range of RT-1000 °C. An open-circuit potential of 0.75 V and a maximum output power density of 426 mW/cm2 were obtained at 650 °C in a Sm0.2Ce0.8O1.9 (SDC)-based anode-supported SOFC by using humidified (∼3% H2O) hydrogen as fuel and static air as oxidant. The results indicated that the YCBCF was a promising cathode candidate for IT-SOFCs.

KW - SmCeO

KW - cathode

KW - perovskite

KW - rare earths

KW - solid oxide fuel cell

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