pp 1–13 | Cite as

Fabrication of LSCF and LSCF-GDC nanocomposite thin films using polymeric precursors

  • Can Sındıraç
  • Ali Ahsen
  • Osman Ozturk
  • Sedat Akkurt
  • Viola I. Birss
  • Aligul BuyukaksoyEmail author
Original Paper


La1-xSrxCoyFe1-yO3 (LSCF) and LSCF-gadolinia-doped ceria (LSCF-GDC) composites are used as solid oxide fuel cell (SOFC) cathodes. In the present study, to maximize the LSCF/gas and LSCF/GDC interfacial area and thus enhance the performance, we fabricated both single-phase LSCF and composite LSCF-GDC thin-film electrodes using a facile and cost-effective polymeric precursor technique. This method involves molecular level mixing of cations in solution form and results in average particle sizes of ca. 72 nm and 60 nm upon annealing at 700 °C, respectively. For LSCF, electrochemical impedance spectroscopy measurements indicate very low electrode polarization resistances of ca. 0.6 Ω cm2 per electrode at 600 °C. However, the addition of GDC results in poorer electrochemical activity but better microstructural and electrochemical stability, all at 600 °C. Surface analysis revealed that Fe surface segregation occurs in the single-phase LSCF, while predominantly Co segregation is observed at the LSCF-GDC composite electrode surface.


Solid oxide fuel cell Thin-film electrodes Impedance spectroscopy Long-term stability Surface composition 



The authors also thank the Natural Sciences and Engineering Research Council of Canada (NSERC) and the Izmir Institute of Technology for the overall support of this research. Thanks are also due to Dr. Orhan Ozturk for his help with the XRD measurements.

Funding information

AB is financially supported by the Eyes High PDF program at the University of Calgary and Alberta Innovates – Technology Futures (AITF). This project was also partially supported by the Izmir Institute of Technology (BAP project number: 2015IYTE31).


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Can Sındıraç
    • 1
  • Ali Ahsen
    • 2
    • 3
  • Osman Ozturk
    • 2
    • 3
  • Sedat Akkurt
    • 1
  • Viola I. Birss
    • 4
  • Aligul Buyukaksoy
    • 4
    • 5
    Email author
  1. 1.Department of Mechanical EngineeringIzmir Institute of TechnologyİzmirTurkey
  2. 2.Department of PhysicsGebze Technical UniversityKocaeliTurkey
  3. 3.Institute of NanotechnologyGebze Technical UniversityKocaeliTurkey
  4. 4.Department of ChemistryUniversity of CalgaryCalgaryCanada
  5. 5.Department of Materials Science and EngineeringGebze Technical UniversityKocaeliTurkey

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