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@ARTICLE{Kulikovsky:828747,
      author       = {Kulikovsky, Andrei},
      title        = {{C}an {W}e {Q}uantify {O}xygen {T}ransport in the {N}afion
                      {F}ilm {C}overing an {A}gglomerate of {P}t/{C} {P}articles?},
      journal      = {Journal of the Electrochemical Society},
      volume       = {164},
      number       = {4},
      issn         = {1945-7111},
      address      = {Pennington, NJ},
      publisher    = {Electrochemical Soc.},
      reportid     = {FZJ-2017-02613},
      pages        = {F379 - F386},
      year         = {2017},
      abstract     = {We report a model of the cathode catalyst layer (CCL)
                      impedance, which includes impedances due to oxygen transport
                      in the Nafion film covering Pt/C agglomerates, and due to
                      oxygen transport through the CCL depth. In the case of small
                      cell current density, analytical solutions for the CCL
                      impedance Zccl are derived; for larger currents, we analyze
                      numerical solution for Zccl. The characteristic frequencies
                      of the oxygen transport through the Nafion film and through
                      the CCL depth are close to each other, and the contribution
                      of the Nafion film impedance ZN to Zccl is small up to the
                      current densities ≃ 100 mA cm− 2. This makes it
                      difficult reliable determination of ZN from experimental
                      spectra of a standard 10 μm–thick CCL. However, with the
                      decrease in the CCL thickness, the relative contribution of
                      ZN to Zccl increases. It gives us a chance to determine ZN
                      by fitting the models of this work to measured spectra of a
                      low–loaded MEA with a thin CCL. An example of fitting the
                      model to a synthetic numerical impedance is given.},
      cin          = {IEK-3},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-3-20101013},
      pnm          = {135 - Fuel Cells (POF3-135)},
      pid          = {G:(DE-HGF)POF3-135},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000400958600148},
      doi          = {10.1149/2.1261704jes},
      url          = {https://juser.fz-juelich.de/record/828747},
}