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@ARTICLE{Schober:32012,
      author       = {Schober, T.},
      title        = {{O}n the use of {P}d filters on proton conducting {SOFC}
                      ceramics},
      journal      = {Ionics},
      volume       = {9},
      issn         = {0947-7047},
      address      = {Berlin},
      publisher    = {Springer},
      reportid     = {PreJuSER-32012},
      pages        = {297},
      year         = {2003},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Ceramic proton conductors are materials which conduct
                      protons under an applied electric field and permit the
                      construction of a SOFC in analogy to the oxygen ion
                      conductor 8YSZ. Such protonic ceramic fuel cells have been
                      labelled PCFCs to distinguish them from the standard SOFCs.
                      PCFCs have several advantages when compared with standard
                      SOFCs. First, there is no water contamination of the fuel
                      gas. Second, the protonic conductivity may be higher in the
                      intermediate temperature range (550 to 700 degreesC). Also,
                      the activation energy for proton migration is much lower
                      than that of oxygen ion conduction. In addition, internal
                      reforming is also possible permitting the use of natural
                      gas.An intriguing possibility is the use of palladium
                      filters on the fuel side which only permit the diffusion of
                      protons to the filter-electrolyte interface. This may reduce
                      undesirable mixing of the fuel and the oxygen on either side
                      of the electrolyte. In this work, it is shown that the entry
                      of protons from the Pd into the ceramic conductor is
                      straightforward. Prototype test PCFCs are shown to operate
                      as required. To test the Pd - ceramic proton conductor
                      system a study was undertaken using Pd tubes which were
                      coated with thin layers of the proton conducting ceramics.
                      When flushing the tube insides with hydrogen and exposing
                      the outsides to air, Nernst voltages of such electrochemical
                      cells could be recorded as a function of temperature. The
                      present rather preliminary work, however, was hampered by
                      leakage of the thin film HTPC's. Thus, the theoretical
                      Nernst voltages were not attained.},
      keywords     = {J (WoSType)},
      cin          = {IFF-EKM},
      ddc          = {530},
      cid          = {I:(DE-Juel1)VDB35},
      pnm          = {Kondensierte Materie},
      pid          = {G:(DE-Juel1)FUEK242},
      shelfmark    = {Chemistry, Physical / Electrochemistry / Physics, Condensed
                      Matter},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000187528200023},
      doi          = {10.1007/BF02375983},
      url          = {https://juser.fz-juelich.de/record/32012},
}