Destruction modes of anode-supported SOFC caused by degrees of electrochemical oxidation in redox cycle

Toru Hatae, Yoshio Matsuzaki, Satoshi Yamashita, Yohtaro Yamazaki

研究成果: ジャーナルへの寄稿学術誌査読

27 被引用数 (Scopus)

抄録

The differences in the destruction mode of anode-supported solid oxide fuel cells (SOFCs) as a result of small and large amounts of oxidation were investigated. The cells were oxidized by O2- ions and rereduced by H2 gas (redox cycle). When 0.6% of Ni in the anode was oxidized, its microstructure near the electrolyte changed. Although this microstructural change in the anode by early redox cycles did not cause performance degradation, minor damage accumulated as the redox cycles increased. An increase in the microcracks in the anode led to partial delamination of the electrolyte, which finally resulted in a crack in the electrolyte. In contrast, when 31% of Ni in the anode was oxidized, a crack in the electrolyte was suddenly caused by two redox cycles. Because the electrolyte did not delaminate by a few redox cycles, the anode strain caused the electrolyte to crack, as reported by many researchers.

本文言語英語
ページ(範囲)B650-B654
ジャーナルJournal of the Electrochemical Society
157
5
DOI
出版ステータス出版済み - 2010
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 再生可能エネルギー、持続可能性、環境
  • 表面、皮膜および薄膜
  • 電気化学
  • 材料化学

フィンガープリント

「Destruction modes of anode-supported SOFC caused by degrees of electrochemical oxidation in redox cycle」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。

引用スタイル