A stable La1.95Ca0.05Ce2O 7-δ as the electrolyte for intermediate-temperature solid oxide fuel cells

Zetian Tao; Lei Bi; Shuming Fang; Wei Liu

doi:10.1016/j.jpowsour.2011.03.011

A stable La_1.95Ca_0.05Ce₂O _7-δ as the electrolyte for intermediate-temperature solid oxide fuel cells

Zetian Tao, Lei Bi, Shuming Fang, Wei Liu^*

^*Corresponding author for this work

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

38 Scopus citations

Abstract

The La_1.95Ca_0.05Ce₂O_7-δ (LCCO) material is successfully synthesized using the Pechini method. The synthesized powders are exposed to atmospheric CO₂ and H₂ with 3% H₂O at 700 °C. The treated LCCO powders are investigated using X-ray diffraction (XRD) to study the chemical stability. According to the XRD results, LCCO is very stable and shows no reactions with CO₂ or H₂O. A fuel cell with the LCCO electrolyte is prepared using the suspension spray method and is tested in the range from 600 °C to 700 °C using humidified hydrogen (∼3% H₂O) as the fuel and static air as the oxidant. An open-circuit potential of 0.832 V and a maximum power density of 259 mW cm^-2 are obtained for a single cell with an interface resistance of 0.23 Ω cm² at 700 °C.

Original language	English (US)
Pages (from-to)	5840-5843
Number of pages	4
Journal	Journal of Power Sources
Volume	196
Issue number	14
DOIs	https://doi.org/10.1016/j.jpowsour.2011.03.011
State	Published - Jul 15 2011
Externally published	Yes

Bibliographical note

Funding Information:
This work is supported by the National Natural Science Foundation of China (Grant Nos.: 21076204 ) and the National High-tech R&D Program of China (Grant No.: 2007AA05Z157 ).

Keywords

Chemical stability
In situ sintering
Pechini method
Solid oxide fuel cells
Spray

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.jpowsour.2011.03.011

Cite this

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title = "A stable La1.95Ca0.05Ce2O 7-δ as the electrolyte for intermediate-temperature solid oxide fuel cells",

abstract = "The La1.95Ca0.05Ce2O7-δ (LCCO) material is successfully synthesized using the Pechini method. The synthesized powders are exposed to atmospheric CO2 and H2 with 3% H2O at 700 °C. The treated LCCO powders are investigated using X-ray diffraction (XRD) to study the chemical stability. According to the XRD results, LCCO is very stable and shows no reactions with CO2 or H2O. A fuel cell with the LCCO electrolyte is prepared using the suspension spray method and is tested in the range from 600 °C to 700 °C using humidified hydrogen (∼3% H2O) as the fuel and static air as the oxidant. An open-circuit potential of 0.832 V and a maximum power density of 259 mW cm-2 are obtained for a single cell with an interface resistance of 0.23 Ω cm2 at 700 °C.",

keywords = "Chemical stability, In situ sintering, Pechini method, Solid oxide fuel cells, Spray",

author = "Zetian Tao and Lei Bi and Shuming Fang and Wei Liu",

note = "Funding Information: This work is supported by the National Natural Science Foundation of China (Grant Nos.: 21076204 ) and the National High-tech R&D Program of China (Grant No.: 2007AA05Z157 ).",

year = "2011",

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day = "15",

doi = "10.1016/j.jpowsour.2011.03.011",

language = "English (US)",

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T1 - A stable La1.95Ca0.05Ce2O 7-δ as the electrolyte for intermediate-temperature solid oxide fuel cells

AU - Tao, Zetian

AU - Bi, Lei

AU - Fang, Shuming

AU - Liu, Wei

N1 - Funding Information: This work is supported by the National Natural Science Foundation of China (Grant Nos.: 21076204 ) and the National High-tech R&D Program of China (Grant No.: 2007AA05Z157 ).

PY - 2011/7/15

Y1 - 2011/7/15

N2 - The La1.95Ca0.05Ce2O7-δ (LCCO) material is successfully synthesized using the Pechini method. The synthesized powders are exposed to atmospheric CO2 and H2 with 3% H2O at 700 °C. The treated LCCO powders are investigated using X-ray diffraction (XRD) to study the chemical stability. According to the XRD results, LCCO is very stable and shows no reactions with CO2 or H2O. A fuel cell with the LCCO electrolyte is prepared using the suspension spray method and is tested in the range from 600 °C to 700 °C using humidified hydrogen (∼3% H2O) as the fuel and static air as the oxidant. An open-circuit potential of 0.832 V and a maximum power density of 259 mW cm-2 are obtained for a single cell with an interface resistance of 0.23 Ω cm2 at 700 °C.

AB - The La1.95Ca0.05Ce2O7-δ (LCCO) material is successfully synthesized using the Pechini method. The synthesized powders are exposed to atmospheric CO2 and H2 with 3% H2O at 700 °C. The treated LCCO powders are investigated using X-ray diffraction (XRD) to study the chemical stability. According to the XRD results, LCCO is very stable and shows no reactions with CO2 or H2O. A fuel cell with the LCCO electrolyte is prepared using the suspension spray method and is tested in the range from 600 °C to 700 °C using humidified hydrogen (∼3% H2O) as the fuel and static air as the oxidant. An open-circuit potential of 0.832 V and a maximum power density of 259 mW cm-2 are obtained for a single cell with an interface resistance of 0.23 Ω cm2 at 700 °C.

KW - Chemical stability

KW - In situ sintering

KW - Pechini method

KW - Solid oxide fuel cells

KW - Spray

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