Ni doped PrSr3Fe3O10-δ Ruddlesden-Popper oxide for active oxygen reduction cathode for solid oxide fuel cell

Soamwadee Chaianansutcharit, Young Wan Ju, Shintaro Ida, Tatsumi Ishihara

    Research output: Contribution to journalArticlepeer-review

    15 Citations (Scopus)

    Abstract

    PrSr3Fe3-yNiyO10-δ (PSFNO10, 0 < y <0.2) was synthesized and investigated for the potential active cathode of a solid oxide fuel cell operating at low temperature. Effects of Ni substitution in PrSr3Fe3O10 on the structure, thermal expansion property, electrical conductivity, and cathodic performance of SOFC were studied. PSFNO10 has a tetragonal crystal structure with a I4/mmm space group. The unit cell parameter and crystallite size decreased when Ni was substituted at the Fe site. However, the electrical conductivity of PSFO10 was hardly changed by the addition of Ni and the dominant hole conduction was observed in PSFNO10 with and without Ni doping. The thermal expansion coefficient (TEC) was decreased by addition of Ni and the TEC was in good agreement with that of LSGM electrolyte. The power density of the single planar cell using PSFNO10 (Ni = 10 mol%) cathode achieved the large power density of 679 mW/cm2 and the cathodic overpotential was 131.3 mV at 1.25 A cm−2 at 1073 K.

    Original languageEnglish
    Pages (from-to)1853-1860
    Number of pages8
    JournalElectrochimica Acta
    Volume222
    DOIs
    Publication statusPublished - Dec 20 2016

    All Science Journal Classification (ASJC) codes

    • Chemical Engineering(all)
    • Electrochemistry

    Fingerprint

    Dive into the research topics of 'Ni doped PrSr3Fe3O10-δ Ruddlesden-Popper oxide for active oxygen reduction cathode for solid oxide fuel cell'. Together they form a unique fingerprint.

    Cite this