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@ARTICLE{Opitz:866370,
      author       = {Opitz, A. K. and Gerstl, M. and Bram, M.},
      title        = {{M}odel {S}ystem {S}upported {I}mpedance {S}imulation of
                      {C}omposite {E}lectrodes},
      journal      = {Fuel cells},
      volume       = {19},
      number       = {4},
      issn         = {1615-6854},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2019-05526},
      pages        = {417 - 428},
      year         = {2019},
      abstract     = {Current research on fuel electrodes of solid oxide cells
                      (SOCs) is done either on model‐type pattern electrodes or
                      by interpretation of impedance spectra measured on
                      “real” porous paste electrodes. However, results
                      obtained by both methods are not always straightforward to
                      compare. To bridge this gap, in this study impedance spectra
                      of 3D porous composite electrodes with a well‐defined
                      geometry are simulated using elementary parameters from
                      model‐type experiments. By independent variation of these
                      elementary parameters, it is possible to analyze the
                      influence of the individual elementary processes on the
                      overall electrode performance without the issue of changing
                      its microstructure, which usually occurs when changing
                      materials in case of real porous electrodes. The obtained
                      results identify the electrochemical reaction resistance as
                      the parameter with the highest impact on the polarization
                      resistance of porous electrodes. This study thus provides a
                      basis for a knowledge‐based improvement of existing and
                      novel composite fuel electrodes.},
      cin          = {IEK-1},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {135 - Fuel Cells (POF3-135)},
      pid          = {G:(DE-HGF)POF3-135},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000476070000001},
      doi          = {10.1002/fuce.201800198},
      url          = {https://juser.fz-juelich.de/record/866370},
}