Influence of water vapor on sulfur distribution within La 0.6Sr0.4Co0.2Fe0.8O3 cathode

F. Wang; K. Yamaji; D. H. Cho; T. Shimonosono; M. Nishi; H. Kishimoto; M. E. Brito; T. Horita; H. Yokokawa

doi:10.1149/05027.0143ecst

Influence of water vapor on sulfur distribution within La _0.6Sr_0.4Co_0.2Fe_0.8O₃ cathode

F. Wang, K. Yamaji, D. H. Cho, T. Shimonosono, M. Nishi, H. Kishimoto, M. E. Brito, T. Horita, H. Yokokawa

Department of System Design Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

6 Citations (Scopus)

Abstract

Effect of water vapor on the sulfur poisoning of LSCF6428 cathode were investigated by comparison in performance and impedance spectroscopy of LSCF6428/10GDC cells, which were tested at 1073 K (800 °C) for 100 h under two conditions: (a) 1 ppm SO₂ with dry air and (b) 1 ppm SO ₂ with 1.2% humidified air. Results of performance degradation revealed that degradation speed is accelerated about 10 times in the presence of water vapor. Detailed SEM analyses show that the amount of formed SrSO ₄ during the same operation time is much larger in the humidified air atmosphere.

Original language	English
Title of host publication	Solid State Ionic Devices 9 - Ion Conducting Thin Films and Multilayers
Pages	143-150
Number of pages	8
Edition	27
DOIs	https://doi.org/10.1149/05027.0143ecst
Publication status	Published - 2012 Dec 1
Event	9th Solid State Ionic Devices Sympsoium - 22nd ECS Meeting - Honolulu, HI, United States Duration: 2012 Oct 7 → 2012 Oct 12

Publication series

Name	ECS Transactions
Number	27
Volume	50
ISSN (Print)	1938-5862
ISSN (Electronic)	1938-6737

Other

Other	9th Solid State Ionic Devices Sympsoium - 22nd ECS Meeting
Country	United States
City	Honolulu, HI
Period	12/10/7 → 12/10/12

ASJC Scopus subject areas

Engineering(all)

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10.1149/05027.0143ecst

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Wang, F., Yamaji, K., Cho, D. H., Shimonosono, T., Nishi, M., Kishimoto, H., Brito, M. E., Horita, T., & Yokokawa, H. (2012). Influence of water vapor on sulfur distribution within La _0.6Sr_0.4Co_0.2Fe_0.8O₃ cathode. In Solid State Ionic Devices 9 - Ion Conducting Thin Films and Multilayers (27 ed., pp. 143-150). (ECS Transactions; Vol. 50, No. 27). https://doi.org/10.1149/05027.0143ecst

Influence of water vapor on sulfur distribution within La _0.6Sr_0.4Co_0.2Fe_0.8O₃ cathode. / Wang, F.; Yamaji, K.; Cho, D. H.; Shimonosono, T.; Nishi, M.; Kishimoto, H.; Brito, M. E.; Horita, T.; Yokokawa, H.

Solid State Ionic Devices 9 - Ion Conducting Thin Films and Multilayers. 27. ed. 2012. p. 143-150 (ECS Transactions; Vol. 50, No. 27).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Wang, F, Yamaji, K, Cho, DH, Shimonosono, T, Nishi, M, Kishimoto, H, Brito, ME, Horita, T & Yokokawa, H 2012, Influence of water vapor on sulfur distribution within La _0.6Sr_0.4Co_0.2Fe_0.8O₃ cathode. in Solid State Ionic Devices 9 - Ion Conducting Thin Films and Multilayers. 27 edn, ECS Transactions, no. 27, vol. 50, pp. 143-150, 9th Solid State Ionic Devices Sympsoium - 22nd ECS Meeting, Honolulu, HI, United States, 12/10/7. https://doi.org/10.1149/05027.0143ecst

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abstract = "Effect of water vapor on the sulfur poisoning of LSCF6428 cathode were investigated by comparison in performance and impedance spectroscopy of LSCF6428/10GDC cells, which were tested at 1073 K (800 °C) for 100 h under two conditions: (a) 1 ppm SO2 with dry air and (b) 1 ppm SO 2 with 1.2% humidified air. Results of performance degradation revealed that degradation speed is accelerated about 10 times in the presence of water vapor. Detailed SEM analyses show that the amount of formed SrSO 4 during the same operation time is much larger in the humidified air atmosphere.",

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AB - Effect of water vapor on the sulfur poisoning of LSCF6428 cathode were investigated by comparison in performance and impedance spectroscopy of LSCF6428/10GDC cells, which were tested at 1073 K (800 °C) for 100 h under two conditions: (a) 1 ppm SO2 with dry air and (b) 1 ppm SO 2 with 1.2% humidified air. Results of performance degradation revealed that degradation speed is accelerated about 10 times in the presence of water vapor. Detailed SEM analyses show that the amount of formed SrSO 4 during the same operation time is much larger in the humidified air atmosphere.

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