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@ARTICLE{Neuhaus:903677,
      author       = {Neuhaus, Kerstin and Schmidt, Christina and Fischer,
                      Liudmila and Meulenberg, Wilhelm Albert and Ran, Ke and
                      Mayer, Joachim and Baumann, Stefan},
      title        = {{M}easurement of polarization effects in dual-phase
                      ceria-based oxygen permeation membranes using {K}elvin probe
                      force microscopy},
      journal      = {Beilstein journal of nanotechnology},
      volume       = {12},
      issn         = {2190-4286},
      address      = {Frankfurt, M.},
      publisher    = {Beilstein-Institut zur Förderung der Chemischen
                      Wissenschaften},
      reportid     = {FZJ-2021-05326},
      pages        = {1380 - 1391},
      year         = {2021},
      abstract     = {In this study, a dual phase composite (CSO-FC2O) consisting
                      of 60 vol $\%$ Ce0.8Sm0.2O1.9 as oxygen-conductive phase and
                      40 vol $\%$ FeCo2O4 as electron-conductive phase was
                      synthesized. TEM measurements showed a relatively pure
                      dual-phase material with only minor amounts of a tertiary
                      (Sm,Ce)(Fe,Co)O3 perovskite phase and isolated residues of a
                      rock salt phase at the grain boundaries. The obtained
                      material was used as a model to demonstrate that a
                      combination of polarization relaxation measurements and
                      Kelvin probe force microscopy (KPFM)-based mapping of the
                      Volta potential before and after the end of polarization can
                      be used to determine the chemical diffusion coefficient of
                      the ceria component of the composite. The KPFM measurements
                      were performed at room temperature and show diffusion
                      coefficients in the range of 3 × 10−13 cm2·s−1, which
                      is comparable to values measured for single-phase Gd-doped
                      ceria thin films using the same method.},
      cin          = {IEK-12 / IEK-1 / ER-C-2},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-12-20141217 / I:(DE-Juel1)IEK-1-20101013 /
                      I:(DE-Juel1)ER-C-2-20170209},
      pnm          = {1232 - Power-based Fuels and Chemicals (POF4-123) / 1221 -
                      Fundamentals and Materials (POF4-122) / DFG project
                      387282673 - Die Rolle von Grenzflächen in mehrphasigen
                      Ceroxid-basierten Membranen für den Einsatz in
                      Membranreaktoren},
      pid          = {G:(DE-HGF)POF4-1232 / G:(DE-HGF)POF4-1221 /
                      G:(GEPRIS)387282673},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000732800000001},
      doi          = {10.3762/bjnano.12.102},
      url          = {https://juser.fz-juelich.de/record/903677},
}