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

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

3 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationECS Transactions
EditorsT. Kawada, S. C. Singhal
PublisherElectrochemical Society Inc.
Pages965-970
Number of pages6
Edition1
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 2017 May 30
Event15th International Symposium on Solid Oxide Fuel Cells, SOFC 2017 - Hollywood, United States
Duration: 2017 Jul 232017 Jul 28

Publication series

NameECS Transactions
Number1
Volume78
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

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

ASJC Scopus subject areas

  • Engineering(all)

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    Amezawa, K., Shindo, Y., Fujimaki, Y., Kimura, Y., Nakamura, T., Iguchi, F., Yashiro, K., Yugami, H., & Kawada, T. (2017). Mechanism of chromium poisoning in SOFC cathode investigated by using pattern thin film model electrode. In T. Kawada, & S. C. Singhal (Eds.), ECS Transactions (1 ed., pp. 965-970). (ECS Transactions; Vol. 78, No. 1). Electrochemical Society Inc.. https://doi.org/10.1149/07801.0965ecst