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@ARTICLE{Liu:851717,
      author       = {Liu, Yang and Baumann, Stefan and Schulze-Küppers, Falk
                      and Müller, David and Guillon, Olivier},
      title        = {{C}o and {F}e co-doping influence on functional properties
                      of {S}r{T}i{O}3 for use as oxygen transport membranes},
      journal      = {Journal of the European Ceramic Society},
      volume       = {38},
      number       = {15},
      issn         = {0955-2219},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2018-05249},
      pages        = {5058 - 5066},
      year         = {2018},
      abstract     = {Perovskite-structured powders of SrTi1-xCoxO3-δ (STC-x)
                      with nominal stoichiometry of x = 0–0.75 as well as
                      SrTi0.75Co0.25-yFeyO3-δ (STCF-y) where y = 0–0.25
                      were synthesized using the Pechini method. Thermal/chemical
                      expansion behaviour, total electrical conductivities, and
                      oxygen permeation rates were investigated. The substitution
                      of Ti with Co leads to an increase in both electronic and
                      ionic conductivities and, therefore, oxygen permeability.
                      Thermal and chemical expansions also increase slightly. The
                      optimum Co content was found to be $25–35\%$ due to the
                      trade-off between phase stability and permeability. The
                      oxygen permeation rate of STC35 is comparable to that of
                      state-of-the-art (La,Sr)(Co,Fe)O3-δ, whereas the expansion
                      coefficients are lower. Co-doping in STCF-y did not produce
                      any significant differences in oxygen permeability at both
                      high temperature and sample thickness (1.0 mm), i.e. in a
                      solid-state diffusion-limited regime. At lower temperatures
                      (<800 °C), STC25 exhibits higher permeability than STF25
                      due to the higher catalytic activity of Co compared to Fe.},
      cin          = {IEK-1 / PGI-6 / JARA-ENERGY},
      ddc          = {660},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / I:(DE-Juel1)PGI-6-20110106 /
                      $I:(DE-82)080011_20140620$},
      pnm          = {113 - Methods and Concepts for Material Development
                      (POF3-113)},
      pid          = {G:(DE-HGF)POF3-113},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000444664300030},
      doi          = {10.1016/j.jeurceramsoc.2018.07.037},
      url          = {https://juser.fz-juelich.de/record/851717},
}