Surface segregation and poisoning in materials for low-temperature SOFCs

John William Richard Druce, Helena Tellez Lozano, Junji Hyodo

Research output: Contribution to journalReview article

27 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)810-815
Number of pages6
JournalMRS Bulletin
Volume39
Issue number9
DOIs
Publication statusPublished - Sep 10 2014

Fingerprint

Surface segregation
poisoning
solid oxide fuel cells
Solid oxide fuel cells (SOFC)
Degradation
Temperature
degradation
Energy conversion
Cations
energy conversion
Durability
durability
Positive ions
Impurities
chemical composition
chemistry
deviation
cations
impurities
Chemical analysis

All Science Journal Classification (ASJC) codes

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

Cite this

Surface segregation and poisoning in materials for low-temperature SOFCs. / Druce, John William Richard; Tellez Lozano, Helena; Hyodo, Junji.

In: MRS Bulletin, Vol. 39, No. 9, 10.09.2014, p. 810-815.

Research output: Contribution to journalReview article

Druce, JWR, Tellez Lozano, H & Hyodo, J 2014, 'Surface segregation and poisoning in materials for low-temperature SOFCs', MRS Bulletin, vol. 39, no. 9, pp. 810-815. https://doi.org/10.1557/mrs.2014.170
Druce, John William Richard ; Tellez Lozano, Helena ; Hyodo, Junji. / Surface segregation and poisoning in materials for low-temperature SOFCs. In: MRS Bulletin. 2014 ; Vol. 39, No. 9. pp. 810-815.
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