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@ARTICLE{Baumann:15949,
      author       = {Baumann, S. and Serra, J.M. and Lobera, M.P. and
                      Escolastico, S. and Schulze-Küppers, F. and Meulenberg,
                      W.A.},
      title        = {{U}ltrahigh oxygen permeation flux through supported
                      {B}a0.5{S}r0.5{C}o0.8{F}e0.2{O}3 membranes},
      journal      = {Journal of membrane science},
      volume       = {377},
      issn         = {0376-7388},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {PreJuSER-15949},
      year         = {2011},
      note         = {Financial support from the Spanish Ministry for Science and
                      Innovation (Project ENE2008-06302 and FPI Grant JAE-Pre
                      08-0058), EU through FP7 NASA-OTM Project
                      (NMP3-SL-2009-228701), and the Helmholtz Association of
                      German Research Centres through the Helmholtz Alliance
                      MEM-BRAIN (Initiative and Networking Fund) is kindly
                      acknowledged. Mrs H. Burlet has contributed to this work
                      with the careful revision of the English language.},
      abstract     = {Oxygen transport membranes made of
                      Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF) were manufactured by
                      tape casting and co-firing. The disk-shaped membranes
                      consisted of a top gastight layer (70 mu m thick) and a
                      porous substrate (830 mu m thick) with $34\%$ open porosity.
                      The variation of the permeation operation conditions allowed
                      (i) the identification of the different limitations steps in
                      the permeation process, i.e., bulk oxygen ion diffusion,
                      catalytic surface exchange and gas phase diffusion in the
                      membrane compartments and porous substrate, and (ii) the
                      ultimate optimization of the oxygen flux. The variables
                      considered in the systematic permeation study included the
                      inlet gas flow rate of the sweep and air feed, the
                      temperature and the nature of the oxygen feed gas (air or
                      pure oxygen). Moreover, the influence of the deposition of a
                      catalytic activation layer (17 mu m thick) made of BSCF on
                      top of the thin gastight layer was investigated. As a result
                      of this parametric study, unpreceded oxygen flux values were
                      achieved, i.e., a maximum flux of 67.7 ml(STP) min(-1)
                      cm(-2) was obtained at 1000 degrees C using pure oxygen as
                      the feed and argon as the sweep, while a flux of 12.2
                      ml(STP) min(-1) cm(-2) at 1000 degrees C was obtained when
                      air was used as the feed. (C) 2011 Elsevier BM. All rights
                      reserved.},
      keywords     = {J (WoSType)},
      cin          = {IEK-1},
      ddc          = {570},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {Rationelle Energieumwandlung / NASA-OTM - NAnostructured
                      Surface Activated ultra-thin Oxygen Transport Membrane
                      (228701)},
      pid          = {G:(DE-Juel1)FUEK402 / G:(EU-Grant)228701},
      shelfmark    = {Engineering, Chemical / Polymer Science},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000292580000020},
      doi          = {10.1016/j.memsci.2011.04.050},
      url          = {https://juser.fz-juelich.de/record/15949},
}