Material stability and cation transport of La 0.6Sr 0.4Co 0.2Fe 0.8O 3-δ, in SOFC cathodic conditions

M. Oh, A. Unemoto, K. Amezawa, T. Kawada

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

Material stability and cation transport of La 0.6Sr 0.4Co 0.2Fe 0.8O 3-δ were investigated by long-term annealing of the sintered pellets with and without applying oxygen potential gradients. The heat treatments at 1073 - 1273 K under uniform p(O 2) of 1.0 × 10 -4 - 0.21 bar for one week did not make any notable changes on the pellets. However, significant changes were observed when the pellets were placed under oxygen potential gradient between 1.0 bar oxygen and diluted oxygen (1.0 × 10 -4 - 1.0 × 10 -1 bar of p(O 2)). On the high p(O 2) side, many particles of cobalt and strontium oxide were found on the surface at 1273 K. The amount of the deposited particles increased with decreasing oxygen potential on the opposite side and/or increasing temperature. The results indicated that the cobalt and strontium ions are faster than the other cations and the cobalt ions are fastest among the cations involved in the LSCF.

本文言語English
ホスト出版物のタイトルSolid Oxide Fuel Cells 12, SOFC XII
ページ2249-2253
ページ数5
3 PART 3
DOI
出版ステータスPublished - 2011 12 1
イベント12th International Symposium on Solid Oxide Fuel Cells, SOFC-XII - 219th ECS Meeting - Montreal, QC, Canada
継続期間: 2011 5 12011 5 6

出版物シリーズ

名前ECS Transactions
番号3 PART 3
35
ISSN(印刷版)1938-5862
ISSN(電子版)1938-6737

Other

Other12th International Symposium on Solid Oxide Fuel Cells, SOFC-XII - 219th ECS Meeting
CountryCanada
CityMontreal, QC
Period11/5/111/5/6

ASJC Scopus subject areas

  • Engineering(all)

フィンガープリント 「Material stability and cation transport of La <sub>0.6</sub>Sr <sub>0.4</sub>Co <sub>0.2</sub>Fe <sub>0.8</sub>O <sub>3-δ</sub>, in SOFC cathodic conditions」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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