Surface segregation and poisoning in materials for low-temperature SOFCs

John William Richard Druce, Helena Tellez Lozano, Junji Hyodo

研究成果: Contribution to journalReview article

30 被引用数 (Scopus)

抄録

Surfaces and interfaces determine the performance and long-term durability of solid-oxide fuel cells (SOFCs). In most cases, the surface chemical composition of the materials used in these electrochemical energy conversion devices shows significant deviations from the bulk chemistry. This might be as a result of surface cation segregation processes, as well as long-term surface poisoning due to external impurities. Both processes have implications for the electrochemical performance of the devices, leading to the degradation of the cell components. In order to suppress this degradation, an effort to lower the operation temperature to 500-800°C has been made. This article provides an overview of present research progress related to surface segregation and poisoning for low-temperature SOFCs.

元の言語英語
ページ(範囲)810-815
ページ数6
ジャーナルMRS Bulletin
39
発行部数9
DOI
出版物ステータス出版済み - 9 10 2014

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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