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@ARTICLE{Konysheva:57793,
      author       = {Konysheva, E. and Penkalla, H. and Wessel, E. and Mertens,
                      J. and Seeling, U. and Singheiser, L. and Hilpert, K.},
      title        = {{C}hromium poisoning of perovskite cathodes by the {ODS}
                      alloy {C}r5{F}e1{Y} 2{O}3 and the high chromium ferritic
                      steel crofer22{APU}},
      journal      = {Journal of the Electrochemical Society},
      volume       = {153},
      issn         = {0013-4651},
      address      = {Pennington, NJ},
      publisher    = {Electrochemical Society},
      reportid     = {PreJuSER-57793},
      pages        = {A765 - A773},
      year         = {2006},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {The alloys Cr5Fe1Y(2)O(3) and the ferritic steel
                      Crofer22APU are typical alloys used as solid oxide fuel cell
                      (SOFC) interconnect materials. Alloy Cr5Fe1Y(2)O(3) is an
                      oxide dispersion strengthened (ODS) alloy developed by
                      Plansee, Reutte, Austria, for use at high temperature. A
                      typical material for medium-temperature SOFC, is the high
                      chromium ferritic steel Crofer22APU supplied by Thyssen
                      Krupp VDM, Germany. The two alloys form different oxide
                      scales which affect chromium poisoning. Chromium
                      vaporization as source term and electrochemical degradation
                      of La1-xSrxMnO3 (LSM) and La0.58Sr0.4Co0.2Fe0.8O3 (LSCF)
                      describing the poisoning were studied for the two alloys.
                      The dynamics of the chromium deposition in porous perovskite
                      cathodes was studied by a dc method and impedance
                      spectroscopy. Electrical degradation of the LSM cathode by
                      alloy Cr5Fe1Y(2)O(3) was significantly higher than for
                      Crofer22APU. The microstructure of the cells was studied
                      after measurements by scanning and energy filtering
                      transmission electron microscopy. Significant amounts of
                      chromium were observed at the TPB in the functional layer of
                      cells, with the LSM cathode giving insight into the
                      degradation mechanism. Cells tested with the LSCF cathode
                      clearly show Cr poisoning. Formation of large SrCrO4
                      crystals was observed on the surface of the LSCF cathode.},
      keywords     = {J (WoSType)},
      cin          = {IWV-1 / IWV-2 / ZCH / JARA-ENERGY},
      ddc          = {540},
      cid          = {I:(DE-Juel1)VDB5 / I:(DE-Juel1)VDB2 /
                      I:(DE-Juel1)ZCH-20090406 / $I:(DE-82)080011_20140620$},
      pnm          = {Rationelle Energieumwandlung / SOFC - Solid Oxide Fuel Cell
                      (SOFC-20140602)},
      pid          = {G:(DE-Juel1)FUEK402 / G:(DE-Juel1)SOFC-20140602},
      shelfmark    = {Electrochemistry / Materials Science, Coatings $\&$ Films},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000235723600019},
      doi          = {10.1149/1.2172563},
      url          = {https://juser.fz-juelich.de/record/57793},
}