Influence of La0.6Sr0.4Co0.2Fe0.8O3-δ Microstructure on GDC Interlayer Stability and Cation Diffusion across the LSCF/GDC/YSZ Interfaces
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作者:
De Vero, Jeffrey C.
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Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan
De Vero, Jeffrey C.
[1
]
Develos-Bagarinao, Katherine
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Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan
Develos-Bagarinao, Katherine
[1
]
Kishimoto, Haruo
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Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan
Kishimoto, Haruo
[1
]
Ishiyama, Tomohiro
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Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan
Ishiyama, Tomohiro
[1
]
Yamaji, Katsuhiko
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Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan
Yamaji, Katsuhiko
[1
]
Horita, Teruhisa
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Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan
Horita, Teruhisa
[1
]
Yokokawa, Harumi
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Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan
Univ Tokyo, Tokyo 1538505, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan
Yokokawa, Harumi
[1
,2
]
机构:
[1] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan
The degradation of GDC interlayer is one of the key issues in the long-term stability of LSCF cathode-YSZ electrolyte based solid oxide fuel cells (SOFCs). Here we demonstrate that the cathode microstructure has a strong influence on the stability of GDC interlayer and cation diffusion behavior of LSCF/GDC/YSZ triplets. LSCF was prepared into two distinct morphologies: porous layers by screen-printing and dense layers by pulsed laser deposition (PLD). Dense GDC barriers by PLD were applied to both porous and dense LSCF cathodes. Interdiffusion and microstructural evolution were investigated at temperatures of 800 degrees C to 1000 degrees C in air. At 800 degrees C, both cathodes showed no apparent formation of SrZrO3 at the GDC/YSZ interface. Instead, SrZrO3 formed at the LSCF/GDC interface, and was more evident for the porous LSCF annealed at 900 degrees C. At 1000 degrees C, severe cation interdiffusion at the LSCF/GDC interface became remarkable for the porous cathode, which exhibited rapid degradation of the GDC layer accompanied by the severe SrZrO3 formation; by contrast the dense cathode only showed localized SrZrO3 grains. The superior barrier stability of GDC in a dense cathode can be related to the air-tight interface which would minimize microstructural degradation occurring near the oxygen/LSCF/GDC triple phase boundary. (C) 2016 The Electrochemical Society. All rights reserved.
机构:
Tsinghua Univ, Dept Thermal Engn, State Key Lab Power Syst, Beijing 100084, Peoples R ChinaTsinghua Univ, Dept Thermal Engn, State Key Lab Power Syst, Beijing 100084, Peoples R China
Fan, Hui
;
Han, Minfang
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Tsinghua Univ, Dept Thermal Engn, State Key Lab Power Syst, Beijing 100084, Peoples R ChinaTsinghua Univ, Dept Thermal Engn, State Key Lab Power Syst, Beijing 100084, Peoples R China
机构:
Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, Japan
Izuki, Manabu
;
Brito, Manuel E.
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Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, Japan
Brito, Manuel E.
;
Yamaji, Katsuhiko
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Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, Japan
Yamaji, Katsuhiko
;
Kishimoto, Haruo
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Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, Japan
Kishimoto, Haruo
;
Cho, Do-Hyung
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Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, Japan
Cho, Do-Hyung
;
Shimonosono, Taro
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Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, Japan
Shimonosono, Taro
;
Horita, Teruhisa
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机构:
Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, Japan
Horita, Teruhisa
;
Yokokawa, Harumi
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Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, Japan
Tokyo City Univ, Adv Res Labs, Tokyo 1580082, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, Japan
机构:
FORSCHUNGSZENTRUM JULICH, INST MAT ENERGY SYST, RES CTR, D-52425 JULICH, GERMANYFORSCHUNGSZENTRUM JULICH, INST MAT ENERGY SYST, RES CTR, D-52425 JULICH, GERMANY
Kindermann, L
;
Das, D
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FORSCHUNGSZENTRUM JULICH, INST MAT ENERGY SYST, RES CTR, D-52425 JULICH, GERMANYFORSCHUNGSZENTRUM JULICH, INST MAT ENERGY SYST, RES CTR, D-52425 JULICH, GERMANY
Das, D
;
Nickel, H
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FORSCHUNGSZENTRUM JULICH, INST MAT ENERGY SYST, RES CTR, D-52425 JULICH, GERMANYFORSCHUNGSZENTRUM JULICH, INST MAT ENERGY SYST, RES CTR, D-52425 JULICH, GERMANY
机构:
Tsinghua Univ, Dept Thermal Engn, State Key Lab Power Syst, Beijing 100084, Peoples R ChinaTsinghua Univ, Dept Thermal Engn, State Key Lab Power Syst, Beijing 100084, Peoples R China
Fan, Hui
;
Han, Minfang
论文数: 0引用数: 0
h-index: 0
机构:
Tsinghua Univ, Dept Thermal Engn, State Key Lab Power Syst, Beijing 100084, Peoples R ChinaTsinghua Univ, Dept Thermal Engn, State Key Lab Power Syst, Beijing 100084, Peoples R China
机构:
Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, Japan
Izuki, Manabu
;
Brito, Manuel E.
论文数: 0引用数: 0
h-index: 0
机构:
Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, Japan
Brito, Manuel E.
;
Yamaji, Katsuhiko
论文数: 0引用数: 0
h-index: 0
机构:
Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, Japan
Yamaji, Katsuhiko
;
Kishimoto, Haruo
论文数: 0引用数: 0
h-index: 0
机构:
Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, Japan
Kishimoto, Haruo
;
Cho, Do-Hyung
论文数: 0引用数: 0
h-index: 0
机构:
Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, Japan
Cho, Do-Hyung
;
Shimonosono, Taro
论文数: 0引用数: 0
h-index: 0
机构:
Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, Japan
Shimonosono, Taro
;
Horita, Teruhisa
论文数: 0引用数: 0
h-index: 0
机构:
Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, Japan
Horita, Teruhisa
;
Yokokawa, Harumi
论文数: 0引用数: 0
h-index: 0
机构:
Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, Japan
Tokyo City Univ, Adv Res Labs, Tokyo 1580082, JapanNatl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3028565, Japan
机构:
FORSCHUNGSZENTRUM JULICH, INST MAT ENERGY SYST, RES CTR, D-52425 JULICH, GERMANYFORSCHUNGSZENTRUM JULICH, INST MAT ENERGY SYST, RES CTR, D-52425 JULICH, GERMANY
Kindermann, L
;
Das, D
论文数: 0引用数: 0
h-index: 0
机构:
FORSCHUNGSZENTRUM JULICH, INST MAT ENERGY SYST, RES CTR, D-52425 JULICH, GERMANYFORSCHUNGSZENTRUM JULICH, INST MAT ENERGY SYST, RES CTR, D-52425 JULICH, GERMANY
Das, D
;
Nickel, H
论文数: 0引用数: 0
h-index: 0
机构:
FORSCHUNGSZENTRUM JULICH, INST MAT ENERGY SYST, RES CTR, D-52425 JULICH, GERMANYFORSCHUNGSZENTRUM JULICH, INST MAT ENERGY SYST, RES CTR, D-52425 JULICH, GERMANY