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@ARTICLE{Wolf:1037252,
      author       = {Wolf, Niklas and Javed, Ali and Treutlein, Leander and
                      Kungl, Hans and Karl, André and Jodat, Eva and Eichel,
                      Rüdiger-A.},
      title        = {{T}uning {P}roton {E}xchange {M}embrane {E}lectrolytic
                      {C}ell {P}erformance by {C}onditioning {N}afion
                      {N}115‐{B}ased {M}embrane {E}lectrode {A}ssemblies},
      journal      = {Electrochemical science advances},
      volume       = {5},
      number       = {3},
      issn         = {2698-5977},
      address      = {Weinheim},
      publisher    = {Wiley-VCH Verlag GmbH $\&$ Co KGaA},
      reportid     = {FZJ-2025-00585},
      pages        = {e202400038},
      year         = {2025},
      abstract     = {Conditioning of the membrane electrode assembly (MEA) is an
                      important step to establish functionality and obtain a
                      consistent performance of the proton exchange membrane
                      electrolytic cell (PEMEC) when setting it into operation. On
                      a laboratory scale in an academic context, conditioning
                      encompasses primary pre-treatment of the MEA by chemical or
                      thermal procedures under defined mechanical conditions and,
                      secondarily, the break-in procedure, during which the PEMEC
                      is subjected to initial electrical loads before actual
                      operation. This study demonstrates the effect of MEA
                      conditioning on the short-term performance of PEMEC. The
                      impact of mechanical, chemical and thermal conditions during
                      pre-treatment was investigated for Nafion N115-based MEAs
                      while keeping the break-in procedure invariant for all
                      pre-treatment conditions. The electrochemical
                      characterisation was performed using polarisation curves and
                      electrochemical impedance spectroscopy. The impact of ex
                      situ–before assembly of the cell–versus in situ–after
                      assembly of the cell–conditioning resulted in markedly
                      different mechanical conditions. The experimental results
                      showed an improvement in PEMEC performance by pre-treating
                      the MEA after cell assembly. Compared to pre-treatment with
                      deionised water (DI water) at 60°C, treatment with acidic
                      solution improved the performance, evidenced by a 21 mV
                      reduction in cell voltage at 2 A·cm−2. When compared with
                      DI water at 60°C, a pre-treatment at 90°C with DI water
                      reduced cell voltage by 23 mV.},
      cin          = {IET-1},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IET-1-20110218},
      pnm          = {1231 - Electrochemistry for Hydrogen (POF4-123)},
      pid          = {G:(DE-HGF)POF4-1231},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001390520700001},
      doi          = {10.1002/elsa.202400038},
      url          = {https://juser.fz-juelich.de/record/1037252},
}