Chromium deposition and poisoning of LSCF and LSM oxygen electrodes of solid oxide electrolysis cells

K. F. Chen, W. Bo, J. Hyodo, T. Ishihara, S. P. Jiang

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

6 被引用数 (Scopus)

抄録

The degradation of solid oxide electrolysis cells (SOECs) is an issue of both scientific and technical importance. In this study, chromium deposition and poisoning at La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) and La0.8Sr0.2MnO3+δ (LSM) oxygen electrodes are studied under SOEC operation conditions at 800°C. Performance degradation was observed for the reaction in the presence of Fe-Cr alloy metallic interconnect. The results indicate the deposition of SrCrO4, CrO2.5 and Cr2O3 phases on the surface of LSCF oxygen electrodes and YSZ electrolyte surface and on the LSM electrode inner surface. Cr deposition is closely related to the increased segregation of SrO species under anodic polarization conditions.

本文言語英語
ホスト出版物のタイトルSolid Oxide Fuel Cells 14, SOFC 2015
編集者K. Eguchi, S. C. Singhal
出版社Electrochemical Society Inc.
ページ793-799
ページ数7
1
ISBN(電子版)9781607685395
DOI
出版ステータス出版済み - 2015
イベント14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage - Glasgow, 英国
継続期間: 7 26 20157 31 2015

出版物シリーズ

名前ECS Transactions
番号1
68
ISSN(印刷版)1938-5862
ISSN(電子版)1938-6737

その他

その他14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage
Country英国
CityGlasgow
Period7/26/157/31/15

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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