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@INPROCEEDINGS{Bartoli:1050251,
      author       = {Bartoli, Francesco and salavei, andrei and Hilche, Tobias
                      and Kiran, Kiran and Fröhlich, Kristina and Treutlein,
                      Leander and Wolf, Niklas and Mehlkoph, Tobias and Karl,
                      André and Jodat, Eva and Eichel, Rüdiger-A.},
      title        = {{O}ptimization of {B}lade {C}oating {P}rocesses for the
                      {P}roduction of {L}arge {S}cale {PEMEC} {MEA}s with {L}ow
                      {I}ridium {L}oading},
      reportid     = {FZJ-2026-00063},
      year         = {2025},
      abstract     = {Current efforts in the development of Proton Exchange
                      Membrane Water Electrolysis (PEMWE) are driven by the
                      ongoing energy transition and the need to phase out fossil
                      fuels, to reduce dependence on other countries for energy
                      supply. However, since this technology strongly relies on
                      precious metals for their functioning, it is imperative to
                      reduce their content while ensuring good performances.
                      Stability overtime is also a major concern, since these
                      devices are expected to operate for hundreds of hours while
                      delivering the same amount of H2 throughout their life
                      cycle.In this work we present our recent results regarding
                      the preparation of Membrane Electrode Assemblies (MEAs) made
                      with supported catalyst commercially available and their
                      performance on PEMWE.Firstly, we prepared the ink containing
                      the catalyst powder (Pt/C for the cathode and IrOx/TiOx for
                      the anode), DI water, IPA and Nafion ionomer. The mixtures
                      were ultrasonicated and the resulting slurries were used for
                      the deposition process on Kapton HN substrates by Doctor
                      Blade technique. This technique was chosen since it is
                      easily transferable to roll-to-roll compatible slot-die
                      coating, and hence for industrial application. Through decal
                      transfer process, catalyst layers of 25 cm2 were transferred
                      on Nafion 115 using a hot press machine, the MEA was named
                      Ir75OxTiOx|N115|PtC. Pt and Ir loading of cathode and anode
                      were 0.22 and 0.35 mg/cm2 respectively. Scanning electron
                      microscopy (SEM) was used to study the MEAs´ morphology and
                      cross section. In order to record stable results under
                      realistic conditions, the cell was subjected to 50 hours of
                      conditioning, in which the current density was increased
                      stepwise from 0.5, 1.0, 1.5 and finally 2.0 A/cm2. Then a
                      polarization curve was recorded, here performance of
                      Ir75OxTiOx|N115|PtC was reported; the plot show how at 1.0
                      A/cm2 the cell voltage was only 1.8 V, a very low value
                      considering that the Ir load was only 0.35 mg/cm2. Stability
                      curve at 2.0 A/cm2 was recorded after 50 h of conditioning,
                      showing no sign of degradation, paving the way for future
                      scale-up further to 100 cm2 and beyond.},
      month         = {Sep},
      date          = {2025-09-07},
      organization  = {76th Annual ISE Meeting Mainz, Mainz
                       (Germany), 7 Sep 2025 - 12 Sep 2025},
      subtyp        = {After Call},
      cin          = {IET-1},
      cid          = {I:(DE-Juel1)IET-1-20110218},
      pnm          = {1231 - Electrochemistry for Hydrogen (POF4-123)},
      pid          = {G:(DE-HGF)POF4-1231},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/1050251},
}