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@ARTICLE{Kulikovsky:838185,
      author       = {Kulikovsky, Andrei},
      title        = {{H}ydrogen crossover impedance of a {PEM} fuel cell at open
                      circuit},
      journal      = {Electrochimica acta},
      volume       = {247},
      issn         = {0013-4686},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2017-06859},
      pages        = {730 - 735},
      year         = {2017},
      abstract     = {We report a physics–based model for impedance due to
                      hydrogen crossover in a PEM fuel cell at open circuit. The
                      model takes into account conversion of hydrogen flux to
                      protons in the cathode catalyst layer (CCL). Transient
                      equations for the proton current conservation and for the
                      hydrogen transport in the CCL are formulated and an
                      analytical expression for the impedance due to hydrogen
                      oxidation is derived. This impedance is summed with the
                      impedance due to conversion of the proton current into water
                      derived previously, and the resulting model impedance is
                      fitted to experimental data. Fitting gives an estimate of
                      the hydrogen diffusion coefficient in the CCL D$_{hy}$ ≃
                      10$^{−3}$ cm$^{2}$ s$^{−1}$.},
      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:000408582300077},
      doi          = {10.1016/j.electacta.2017.07.004},
      url          = {https://juser.fz-juelich.de/record/838185},
}