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@INPROCEEDINGS{MicuBudisteanu:905441,
      author       = {Micu-Budisteanu and Bucher, Edith and Sitte, Werner and
                      Berger, Christian and Lenser, Christian and Menzler, Norbert
                      H.},
      title        = {{P}reparation and characterization of
                      {L}a$_{0.8}${C}a$_{0.2}${F}e$_{0.8}${C}o$_{0.2}${O}$_{3-δ}$
                      as a new air electrode material for solid oxide cells},
      reportid     = {FZJ-2022-00682},
      year         = {2021},
      abstract     = {Preparation and characterization of
                      La0.8Ca0.2Fe0.8Co0.2O3-δ as a new air electrode material
                      for solid oxide cellsMario Micu-Budisteanu1, Christian
                      Berger2, Edith Bucher1, Christian Lenser3, Norbert H.
                      Menzler3, Werner Sitte11 Chair of Physical Chemistry,
                      Montanuniversitaet Leoben, Franz-Josef-Straße 18, 8700
                      Leoben, Austria2 Max Planck Institute for Solid State
                      Research, Heisenbergstraße 1, 70569 Stuttgart, Germany3
                      Forschungszentrum Jülich GmbH, Institute of Energy and
                      Climate Research – Materials Synthesis and Processing
                      (IEK-1), 52425 Jülich, GermanyPerovskites from the series
                      (La,Sr)(Co,Fe)O3-δ are mixed ionic and electronic
                      conductors that are suitable for a broad variety of possible
                      applications, with cathodes for solid oxide fuel cells
                      (SOFCs), anodes for solid oxide electrolyser cells (SOECs),
                      electrochemical gas sensors and catalysts being the most
                      promising fields of application. However, due to long-term
                      stability issues, current research efforts are directed
                      towards development of alternative Sr-free materials.
                      Recently, high electronic- and good ionic conductivities, as
                      well as exceptionally fast oxygen exchange kinetics were
                      demonstrated for La0.8Ca0.2FeO3-δ (LCF82). In the present
                      work, substitution of this material with cobalt is
                      investigated with the aim to further improve sintering
                      activity and electronic conductivity. Therefore,
                      La0.8Ca0.2Fe0.8Co0.2O3-δ (LCFC8282) was synthesized using a
                      sol-gel method. XRD confirmed that the material is single
                      phase. Thermal expansion coefficients (TEC) were determined
                      as a function of oxygen partial pressure (1×10-3 ≤
                      pO2/bar ≤ 1) and temperature (600 ≤ T/°C ≤ 1000). In
                      comparison of LCF82 with LCFC8282, the TEC of the
                      Co-substituted material is slightly higher with values of
                      19-23×10- 6 K-1. The electronic conductivity of LCFC8282 is
                      in the range of 128 ≤ S cm-1 ≤ 145 at 600 ≤ T/°C ≤
                      800 and pO2=0.1 bar and thus higher than that of LCF82 (~110
                      S cm-1). First results on the oxygen exchange kinetics of
                      LCF8282 show high activity towards oxygen reduction.},
      month         = {Apr},
      date          = {2021-04-19},
      organization  = {KERAMIK 2021- 96. Jahrestagung der
                       Deutschen Keramischen Gesellschaft,
                       Online (German), 19 Apr 2021 - 21 Apr
                       2021},
      subtyp        = {Other},
      cin          = {IEK-1},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {1231 - Electrochemistry for Hydrogen (POF4-123) /
                      Development of improved anodes in solid oxide fuel cells for
                      conversion of synthesis gas from thermo-chemical
                      gasification of biomass (275388933)},
      pid          = {G:(DE-HGF)POF4-1231 / G:(GEPRIS)275388933},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/905441},
}