% 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{Wagner:892356,
      author       = {Wagner, Maximilian and Lorenz, Oliver and Lohmann-Richters,
                      Felix P. and Varga, Áron and Abel, Bernd},
      title        = {{S}tudy on solid electrolyte catalyst poisoning in solid
                      acid fuel cells},
      journal      = {Journal of materials chemistry / A},
      volume       = {9},
      issn         = {2050-7496},
      address      = {London ˜[u.a.]œ},
      publisher    = {RSC},
      reportid     = {FZJ-2021-02017},
      pages        = {11347-11358},
      year         = {2021},
      abstract     = {Solid acid fuel cells operate at intermediate temperatures
                      utilizing a solid electrolyte (CsH2PO4, CDP). However,
                      relatively little is known about the degradation mechanism
                      and the topic is rarely addressed. Phosphate poisoning of
                      the platinum catalyst is a well-known problem for fuel cells
                      working with H3PO4 as electrolyte. With CsH2PO4 as
                      electrolyte, phosphate poisoning is therefore likely to
                      occur as well. In this study we show a fast and reversible
                      degradation behavior of solid acid fuel cells and associate
                      it with poisoning of the catalyst. After a decline in power
                      output of around $50\%$ within hours, an in situ
                      reactivation of the cell to almost the initial performance
                      was possible by multiple cycling between the voltage of 0.1
                      V and 2.0 V. A limitation of the effect to the cathode is
                      shown and the underlying process was analyzed by changes in
                      the low frequency domain of impedance measurements, which is
                      indicating a catalyst poisoning, and by the dependency from
                      the upper vertex voltage. By employing a micro porous
                      current collector, a decrease in the low frequency domain as
                      well as enhanced stability (<125 μV h−1 at 0.43 V) was
                      achieved. This work extends from a detailed insight in the
                      degradation mechanism of solid acid fuel cells, to providing
                      a working electrode modification to prevent poisoning,
                      establishing a promising electrode stability on a laboratory
                      scale.},
      cin          = {IEK-14},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IEK-14-20191129},
      pnm          = {134 - Electrolysis and Hydrogen (POF3-134) / 1231 -
                      Electrochemistry for Hydrogen (POF4-123)},
      pid          = {G:(DE-HGF)POF3-134 / G:(DE-HGF)POF4-1231},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000644931100001},
      doi          = {10.1039/D1TA01002F},
      url          = {https://juser.fz-juelich.de/record/892356},
}