% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Schalenbach:1046697,
      author       = {Schalenbach, Maximilian and Wolf, Niklas and Poc,
                      Jean-Pierre and Heume, Christine and Basak, Shibabrata and
                      Schierholz, Roland and Karl, André and Jodat, Eva and
                      Eichel, Rüdiger-A.},
      title        = {{A}ccelerated {I}ridium {D}issolution in {P}roton
                      {E}xchange {M}embrane ({PEM}) {W}ater {E}lectrolyzers by
                      {I}nert {M}obile {A}nions {A}dsorbed in the {D}ouble
                      {L}ayer},
      journal      = {Journal of the Electrochemical Society},
      volume       = {172},
      number       = {6},
      issn         = {0013-4651},
      address      = {Bristol},
      publisher    = {IOP Publishing},
      reportid     = {FZJ-2025-03917},
      pages        = {064509},
      year         = {2025},
      abstract     = {Iridium oxides display state-of-the-art electrocatalysts
                      for anodes in proton exchange membrane water electrolyzers
                      (PEM-WE), combining electrocatalytic activity for the oxygen
                      evolution reaction (OER) and reasonable stability. During
                      OER with liquid electrolytes, iridium dissolution rates were
                      reported as orders of magnitude higher than those of
                      operating PEM-WE cells, while the reasons for these
                      differences are not well understood. Here, iridium oxide
                      dissolution in an operating PEM-WE cell is examined with
                      different feeds, including pure water, 0.1 M sulfuric acid,
                      and 0.1 M perchloric acid. With sulfuric acid feed, the
                      electrically contacted iridium oxide at the anode is found
                      to dissolve within 22 h. In comparison, the dissolution
                      rates with perchloric acid addition and pure water are
                      approximately 120 and 1500 times smaller, respectively.
                      These differences are explained with a novel theory that
                      correlates the influence of inert mobile anions on
                      dissolution rates by their adsorption in the electrochemical
                      double layer. This physicochemical effect also explains
                      previously reported discrepancies of reported iridium
                      dissolution rates with different electrolytes. Based on the
                      results, the quality of the feed water in terms of inert
                      anion pollution is highlighted as a critical factor for
                      achieving long life of PEM-WE cells with low iridium
                      loadings.},
      cin          = {IET-1},
      ddc          = {660},
      cid          = {I:(DE-Juel1)IET-1-20110218},
      pnm          = {1232 - Power-based Fuels and Chemicals (POF4-123) / HITEC -
                      Helmholtz Interdisciplinary Doctoral Training in Energy and
                      Climate Research (HITEC) (HITEC-20170406)},
      pid          = {G:(DE-HGF)POF4-1232 / G:(DE-Juel1)HITEC-20170406},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1149/1945-7111/ade0ef},
      url          = {https://juser.fz-juelich.de/record/1046697},
}