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@PHDTHESIS{Mbius:9148,
      author       = {Möbius, Sigrid Annett},
      title        = {{C}harakterisierung perowskitischer
                      {H}ochtemperaturmembranen zur {S}auerstoffbereitstellung
                      für fossil gefeuerte {K}raftwerksprozesse},
      volume       = {74},
      issn         = {1866-1793},
      school       = {RWTH Aachen},
      type         = {Dr.},
      address      = {Jülich},
      publisher    = {Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag},
      reportid     = {PreJuSER-9148},
      isbn         = {978-3-89336-643-9},
      series       = {Schriften des Forschungszentrums Jülich : Energie $\&$
                      Umwelt / Energy $\&$ Environment},
      pages        = {III, 208 S.},
      year         = {2010},
      note         = {Record converted from JUWEL: 18.07.2013; RWTH Aachen,
                      Diss., 2010},
      abstract     = {In this thesis thermochemical properties of mixed
                      conducting perovskite-type materials were investigated.
                      Those materials are assumed to be applicable as gas
                      separation membranes in the oxyfuel process. Here, the
                      materials are aimed to produce the required oxygen for the
                      combustion more energy-efficient than using cryogenic air
                      separation. High-temperature materials which are applicable
                      for this purpose must be gastight and should exhibit a high
                      oxygen permeation rate and a preferably low thermal
                      expansion coefficient. Moreover, the materials need to be
                      long-term stable under power plant relevant conditions. The
                      aim of this work is a better understanding of the material
                      behaviour. Furthermore, on the basis of the results it
                      should be possible to draw conclusions concerning the
                      suitability of the material for application in oxyfuel power
                      plant processes. Therefor, the influence of the chemical
                      composition (doping elements and stoichiometry) of the
                      perovskites, the temperature and the oxygen content in the
                      ambient atmosphere on the thermochemical properties are
                      studied systematically. In the framework of this thesis it
                      could be stated that the thermochemical behaviour of
                      prospective membrane materials strongly depends on the above
                      mentioned parameters. In addition, the degradation behaviour
                      (thermochemical stability) of the materials was
                      investigated. The degradation behaviour influences the
                      suitability of the material to be used in oxyfuel power
                      plant processes. Here, the influence of the chemical
                      composition of the perovskites, the temperature and the
                      CO$_{2}$-concentration in dry and humid atmospheres was also
                      studied. On the basis of the results it could be stated that
                      the thermochemical stability strongly depends on the
                      surrounding atmosphere and on the chemical composition of
                      the perovskites.},
      cin          = {IEF-2},
      ddc          = {500},
      cid          = {I:(DE-Juel1)VDB810},
      pnm          = {Rationelle Energieumwandlung},
      pid          = {G:(DE-Juel1)FUEK402},
      typ          = {PUB:(DE-HGF)11 / PUB:(DE-HGF)3},
      url          = {https://juser.fz-juelich.de/record/9148},
}