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@ARTICLE{Khaneft:826230,
      author       = {Khaneft, Marina and Holderer, Olaf and Ivanova, Oxana and
                      Lüke, Wiebke and Kentzinger, Emmanuel and Appavou,
                      Marie-Sousai and Zorn, Reiner and Lehnert, Werner},
      title        = {{S}tructure and {P}roton {D}ynamics in {C}atalytic {L}ayer
                      of {HT}-{PEFC}},
      journal      = {Fuel cells},
      volume       = {16},
      number       = {4},
      issn         = {1615-6846},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2017-00476},
      pages        = {406-413},
      year         = {2016},
      abstract     = {The present study focuses on structural and dynamical
                      properties of the catalytic layer for high-temperature
                      polymer electrolyte fuel cells (HT-PEFC). The catalytic
                      layer is a composite material containing nanoporous carbon,
                      poly(tetrafluoroethylene) (PTFE) and platinum (Pt)
                      nanoparticles. The structure of the catalyst is investigated
                      using small angle X-ray scattering (SAXS) following
                      different preparation steps of the electrodes: pure carbon
                      support, platinum/carbon (Pt/C) powder and finally, complete
                      catalytic layer. The structural properties of the Pt/C
                      powder containing different amounts of Pt are discussed
                      along with the size distribution of Pt particles and their
                      arrangement on the surface of the carbon support. Following
                      the preparation sequence of the catalytic layer based on the
                      Pt/C powders the electrodes with different final Pt loadings
                      are analyzed in details. Investigation of the structure of
                      the catalytic layer is accompanied by the study of
                      nanosecond dynamics of the phosphoric acid (PA) in the
                      catalytic layer containing different amount of Pt by means
                      of neutron backscattering spectroscopy. The structure of the
                      catalytic layer is mostly determined by the structure of the
                      catalytic powder and does not vary significantly with Pt
                      loading in the electrode. The behavior of the PA is
                      sensitive to the Pt content in the electrode.},
      cin          = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
                      (München) ; JCNS-FRM-II / Neutronenstreuung ; JCNS-1 /
                      IEK-3 / PGI-4},
      ddc          = {620},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-1-20110106 / I:(DE-Juel1)IEK-3-20101013 /
                      I:(DE-Juel1)PGI-4-20110106},
      pnm          = {135 - Fuel Cells (POF3-135) / 144 - Controlling Collective
                      States (POF3-144) / 6213 - Materials and Processes for
                      Energy and Transport Technologies (POF3-621) / 6G15 - FRM II
                      / MLZ (POF3-6G15) / 6G4 - Jülich Centre for Neutron
                      Research (JCNS) (POF3-623)},
      pid          = {G:(DE-HGF)POF3-135 / G:(DE-HGF)POF3-144 /
                      G:(DE-HGF)POF3-6213 / G:(DE-HGF)POF3-6G15 /
                      G:(DE-HGF)POF3-6G4},
      experiment   = {EXP:(DE-MLZ)SPHERES-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000382557300002},
      doi          = {10.1002/fuce.201500167},
      url          = {https://juser.fz-juelich.de/record/826230},
}