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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 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 languageEnglish
Title of host publicationSolid State Ionic Devices 9 - Ion Conducting Thin Films and Multilayers
Pages143-150
Number of pages8
Edition27
DOIs
Publication statusPublished - 2012 Dec 1
Event9th Solid State Ionic Devices Sympsoium - 22nd ECS Meeting - Honolulu, HI, United States
Duration: 2012 Oct 72012 Oct 12

Publication series

NameECS Transactions
Number27
Volume50
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other9th Solid State Ionic Devices Sympsoium - 22nd ECS Meeting
CountryUnited States
CityHonolulu, HI
Period12/10/712/10/12

ASJC Scopus subject areas

  • Engineering(all)

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