LaNi1-xCoxO3-δ (x=0.4 to 0.7) cathodes for solid oxide fuel cells by infiltration

Aleksander Chrzan, Simona Ovtar, Ming Chen

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Abstract

Performance of LaNi1-xCoxO3-δ (LNC) (x=0.4 to 0.7) as a cathode in solid oxide fuel cell (SOFC) is evaluated. Symmetrical cathode/electrolyte/cathode cells for electrochemical testing are prepared by infiltration of yttria stabilized zirconia (YSZ) backbone with LNC solutions. It is showed that the cathode infiltrated with LaNi0.5Co0.5O3-δ (LNC155) has the lowest polarization resistance and activation energy, 197 mΩ cm2 at 600 °C and 0.91 eV, respectively. Therefore it is the most promising material of the LNC group for electrochemical applications. X-ray diffraction analysis revealed that none of the materials is single-phased after heat treatment at 800 °C as they contain residues of La2O3 and La2NiO4-δ.
Original languageEnglish
Article number012019
JournalI O P Conference Series: Materials Science and Engineering
Volume104
Number of pages6
ISSN1757-8981
DOIs
Publication statusPublished - 2015
Event39th International Microelectronics and Packaging Conference - Gdansk, Poland
Duration: 20 Sep 201523 Sep 2015
Conference number: 39

Conference

Conference39th International Microelectronics and Packaging Conference
Number39
CountryPoland
CityGdansk
Period20/09/201523/09/2015

Keywords

  • ENGINEERING,
  • NANOSCIENCE
  • MATERIALS
  • GD-DOPED CERIA

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