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@ARTICLE{Burdzik:838463,
      author       = {Burdzik, Andrea and Stähler, Markus and Friedrich, Irene
                      and Carmo, Marcelo and Stolten, Detlef},
      title        = {{H}omogeneity {A}nalysis of {S}quare {M}eter-{S}ized
                      {E}lectrodes for {PEM} {E}lectrolysis and {PEM} {F}uel
                      {C}ells},
      journal      = {Journal of coatings technology and research},
      volume       = {15},
      number       = {6},
      issn         = {1547-0091},
      address      = {Blue Bell, Pa.},
      publisher    = {83326},
      reportid     = {FZJ-2017-07066},
      pages        = {1423-1432},
      year         = {2018},
      abstract     = {Electrodes for polymer electrolyte membrane electrolyzers
                      and fuel cells are manufactured by coating a catalyst
                      dispersion, consisting of precious metal, ionomer and
                      solvents, onto a substrate that is subsequently dried. One
                      target of current research is to produce square meter-sized
                      electrodes, but so far the homogeneity that can be achieved
                      in this scaling is unclear. To quantify the achievable
                      homogeneity of an electrode, manufactured by means of slot
                      die coating in a roll-to-roll pilot plant, this study
                      focuses first on the selection of an appropriate substrate
                      by investigating thickness, basis weight and surface free
                      energy distribution at the square meter scale. Afterward, a
                      dispersion is coated on the selected substrate, dried and
                      investigated with respect to thickness and basis weight
                      distribution. Among the investigated substrates, Kapton has
                      the smallest scatter in terms of thickness and basis weight.
                      The subsequent coating results in a precious metal loading
                      of 1.10 mg cm−2, with a scattering of $5.5\%$ that can be
                      further reduced to $4.5\%$ when edge effects can be
                      prevented. These results are now available for further
                      research in which it is necessary to investigate whether or
                      not these fluctuations affect the achievable electrochemical
                      efficiencies of electrodes.},
      cin          = {IEK-3},
      ddc          = {600},
      cid          = {I:(DE-Juel1)IEK-3-20101013},
      pnm          = {134 - Electrolysis and Hydrogen (POF3-134)},
      pid          = {G:(DE-HGF)POF3-134},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000449402600020},
      doi          = {10.1007/s11998-018-0074-3},
      url          = {https://juser.fz-juelich.de/record/838463},
}