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@ARTICLE{Beez:830443,
      author       = {Beez, Alexander and Yin, Xiaoyan and Menzler, Norbert H.
                      and Spatschek, Robert and Bram, Martin},
      title        = {{I}nsight into the reaction mechanism of
                      ({L}a0.58{S}r0.40)({C}o0.20{F}e0.80){O}3-δ cathode with
                      volatile chromium species at high current density in a solid
                      oxide fuel cell stack},
      journal      = {Journal of the Electrochemical Society},
      volume       = {164},
      number       = {10},
      issn         = {0013-4651},
      address      = {Pennington, NJ},
      publisher    = {Electrochemical Soc.},
      reportid     = {FZJ-2017-03989},
      pages        = {F3028-F3034},
      year         = {2017},
      abstract     = {Anode-supported solid oxide fuel cells with different Cr
                      protection layers on the metallic interconnect were operated
                      in a short stack at 700°C for 1240 h. The current density
                      was raised sequentially from 0.5 A cm−2 during the first
                      240 h of operation to 0.75 A cm−2 for a further 1000 h.
                      After operation, the (La,Sr)(Co,Fe)O3-δ (LSCF) cathode
                      layers were analyzed with respect to Cr interaction by both
                      wet chemical and microstructural methods. For cells equipped
                      with interconnects coated with a dense APS protection layer,
                      the amount of Cr on the cathode was in the range of a few
                      μg. For cells with a porous WPS coating on the
                      interconnect, the amount of Cr was in the range of 110–160
                      μg cm−2 and Cr-containing phases were detected by SEM
                      analysis both on top of the cathode layer and also at the
                      LSCF/GDC interface, which has rarely been observed before.
                      In addition, a deterioration of the cathode microstructure
                      near the LSCF/GDC interface was observed. With respect to
                      the high current density during operation, a theory was
                      developed which explains both the Cr deposition at the
                      LSCF/GDC interface and also the deterioration of the
                      cathode.},
      cin          = {IEK-1 / IEK-2},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / I:(DE-Juel1)IEK-2-20101013},
      pnm          = {135 - Fuel Cells (POF3-135) / SOFC - Solid Oxide Fuel Cell
                      (SOFC-20140602) / HITEC - Helmholtz Interdisciplinary
                      Doctoral Training in Energy and Climate Research (HITEC)
                      (HITEC-20170406)},
      pid          = {G:(DE-HGF)POF3-135 / G:(DE-Juel1)SOFC-20140602 /
                      G:(DE-Juel1)HITEC-20170406},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000413258100002},
      doi          = {10.1149/2.0051710JES},
      url          = {https://juser.fz-juelich.de/record/830443},
}