Evaluation of electrode performances of single-chamber solid oxide fuel cells

Mikihiro Hori*, Keisuke Nagasaka, Masaru Miyayama, Giuseppe Trunfio, Enrico Traversa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The interfacial resistances of La1-xSrxCo 1-yFeyO3-δ (denoted LSCF(10(l-x)/10x/10(1-y)/10y)) cathodes, and the catalytic activities of a Ni-Ce0.85Y0.15O1.925 (Ni-YDC) anode and an LSCF(2/8/8/2) cathode of a single-chamber solid oxide fuel cells (SOFCs) were investigated. LSCF cathodes with high oxide ion conductivities gave low interfacial resistances. LSCF cathodes with suitable thermal expansion coefficients formed favorable interfacial structures with a ceria-based electrolyte. Ni-YDC showed a higher conversion efficiency for CH4 and a lower selectivity for CO2 than LSCF(2/8/8/2). The single-chamber SOFC based on the Sm-doped ceria electrolyte with the Ni-YDC anode and LSCF(2/8/8/2) cathode showed a maximum power density of 186 mW/cm 2 at 800°C.

Original languageEnglish (US)
Pages (from-to)155-158
Number of pages4
JournalKey Engineering Materials
Volume301
DOIs
StatePublished - Mar 20 2006

Keywords

  • Catalytic Activity
  • Electrode
  • Interfacial resistance
  • Single-Chamber SOFC
  • Thermal Expansion Coefficient

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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