Compositional and mechanical stabilities of a (La,Sr)(Co,Fe)O 3-δ cathode under SOFC operation

Tatsuya Kawada, M. Y. Oh, H. Watanabe, Yuta Kimura, Y. Fujimaki, T. Masumitsu, S. Watanabe, S. Hashimoto, Koji Amezawa

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

2 Citations (Scopus)

Abstract

Compositional and mechanical stability issues of (La,Sr)(Co,Fe)O 3 electrode were evaluated in terms of the behavior of the material under operation conditions. Electrochemical impedance measurement was performed to estimate the oxygen potential gradient in the electrode layer, which was found to be large enough to cause kinetic decomposition. Dependence of elastic behaviors on temperature and oxygen partial pressure was measured, and risk of mechanical failure caused by the cathode layer was discussed.

Original languageEnglish
Title of host publicationIonic and Mixed Conducting Ceramics 8
Pages307-312
Number of pages6
Volume45
Edition1
DOIs
Publication statusPublished - 2012 Nov 19
EventIonic and Mixed Conducting Ceramics 8 - 221st ECS Meeting - Seattle, WA, United States
Duration: 2012 May 62012 May 10

Other

OtherIonic and Mixed Conducting Ceramics 8 - 221st ECS Meeting
CountryUnited States
CitySeattle, WA
Period12/5/612/5/10

ASJC Scopus subject areas

  • Engineering(all)

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