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@INPROCEEDINGS{Frhlich:1048575,
      author       = {Fröhlich, Kristina and Liu, Jialiang and Hilche, Tobias
                      and Bartoli, Francesco and Karl, André and Jodat, Eva and
                      Eichel, Rüdiger-A.},
      title        = {{A}node catalyst layer composition for {PEM}
                      {E}lectrolysis: {A}n in-depth electrochemical analysis},
      reportid     = {FZJ-2025-04715},
      year         = {2025},
      abstract     = {Proton exchange membrane (PEM) water electrolysis is a
                      technology for large-scale hydrogen production.[1,2] The
                      oxygen evolution reaction (OER) at the membrane electrode
                      assembly (MEA) is the rate determining step dominating the
                      overall cell performance. The choice of the OER catalyst and
                      deposition procedure significantly affect the reaction
                      kinetics, chemical stability and electronic conductivity.[3]
                      To maintain a high and long-term consistent cell
                      performance, manufacturing and performance control of the
                      MEA is indispensable.Electrochemical analysis is a powerful
                      tool for MEA evaluation providing information about
                      catalytic activity, kinetics and electrochemically active
                      surface area (ECSA). In addition, scanning electrochemical
                      microscopy and eddy current measurements give insights into
                      the micro- and macroscopic homogeneity of catalyst layers
                      and MEAs.[4,5]In this study, we clarify the significance of
                      electronic conductivity focusing on Ir-based anodes of
                      customized MEAs. The effect of catalyst material and loading
                      on the in-plane MEA resistance, OER performance and ECSA was
                      investigated.Funding: This work was financially supported by
                      the Bundesministerium für Bildung und Forschung (BMBF):
                      Wasserstoff - Leitprojekt H2Giga, Teilvorhaben DERIEL
                      (project number 03HY122C), SEGIWA (project number
                      03HY121B).[1] A. S. Aricò et al (2013) Appl. Electrochem.
                      43 107, DOI 10.1007/s10800-012-0490-5[2] T. Wang et al
                      (2022) Carbon Neutr. 1 21, DOI 0.1007/s43979-022-00022-8[3]
                      S. Mo et al (2023) Electrochem. Energy Rev. 6 28, DOI
                      0.1007/s41918-023-00190-w[4] D. Polcari et al (2016) Chem.
                      Rev. 116 13234, DOI 10.1021/acs.chemrev.6b00067[5] G.
                      Belkacem et al (2024) 24 1629, DOI 10.3390/s24051629},
      month         = {Jul},
      date          = {2025-07-23},
      organization  = {INTERNATIONAL SCHOOL OF
                       ELECTROCATALYSIS 2025 - ISECAT, Padova
                       (Italy), 23 Jul 2025 - 25 Jul 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)24},
      url          = {https://juser.fz-juelich.de/record/1048575},
}