Mechanism of chromium poisoning in SOFC cathode investigated by using pattern thin film model electrode

K. Amezawa, Y. Shindo, Y. Fujimaki, Y. Kimura, T. Nakamura, F. Iguchi, K. Yashiro, H. Yugami, T. Kawada

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

Cr-poisoning at an SOFC cathode was investigated by using the patterned thin film model electrode of La0.6Sr0.4CoO3-δ on a Ce0.9Gd0.1O1.95 electrolyte. The model electrode was exposed to Cr-containing oxygen gas for a week at 973 K while applying the cathodic bias. After the Cr-poisoning test, the surface morphology and the distribution of Cr were examined by means of SEM and SIMS. Deposition of Cr-containing particles was observed on the electrode surface preferentially near the electrode/electrolyte interface. This result demonstrated that the cathodic polarization accelerated the Cr deposition especially at the area where the cathodic reaction took place.

本文言語English
ホスト出版物のタイトルECS Transactions
編集者T. Kawada, S. C. Singhal
出版社Electrochemical Society Inc.
ページ965-970
ページ数6
1
ISBN(電子版)9781607685395
DOI
出版ステータスPublished - 2017 5 30
イベント15th International Symposium on Solid Oxide Fuel Cells, SOFC 2017 - Hollywood, United States
継続期間: 2017 7 232017 7 28

出版物シリーズ

名前ECS Transactions
番号1
78
ISSN(印刷版)1938-5862
ISSN(電子版)1938-6737

Other

Other15th International Symposium on Solid Oxide Fuel Cells, SOFC 2017
国/地域United States
CityHollywood
Period17/7/2317/7/28

ASJC Scopus subject areas

  • 工学(全般)

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