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@ARTICLE{Unije:824616,
      author       = {Unije, U. and Mücke, R. and Niehoff, P. and Baumann, S.
                      and Vassen, Robert and Guillon, Olivier},
      title        = {{S}imulation of the effect of the porous support on flux
                      through an asymmetric oxygen transport membrane},
      journal      = {Journal of membrane science},
      volume       = {524},
      issn         = {0376-7388},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2016-07179},
      pages        = {334 - 343},
      year         = {2017},
      abstract     = {Asymmetric membranes provide a low ionic resistance of the
                      functional separation layer together with a high mechanical
                      stability. However, the microstructure of the porous support
                      in the membrane assembly affects the overall flux
                      significantly. This effect was studied by applying the
                      binary friction model (BFM) for the support together with a
                      modified Wagner equation for the dense membrane using
                      transport relevant parameters obtained from micro computed
                      tomography data of a tape cast Ba0.5Sr0.5Co0.8Fe0.2O3–δ
                      support. The influence of different pore diameters and
                      thicknesses of the support were compared for different feed
                      gases (oxygen and air) and flow configurations (3-end,
                      4-end, assembly orientation).The effect of the support at
                      large pore diameters (>35 µm) for the 3-end mode transport
                      process using oxygen as feed gas, was negligible. This was
                      not the case for the 4-end mode irrespective of the feed
                      gas, and for the 3-end mode using air as feed gas. This was
                      attributed to the binary diffusion term in the BFM. Thin
                      small-pored supports yield the same flux as thick
                      large-pored supports considering a non-linear relationship
                      between thickness and pore size. This can be used for the
                      optimization of the support's microstructure with regards to
                      mechanical strength and permeability.},
      cin          = {IEK-1 / JARA-ENERGY},
      ddc          = {570},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / $I:(DE-82)080011_20140620$},
      pnm          = {113 - Methods and Concepts for Material Development
                      (POF3-113) / HITEC - Helmholtz Interdisciplinary Doctoral
                      Training in Energy and Climate Research (HITEC)
                      (HITEC-20170406)},
      pid          = {G:(DE-HGF)POF3-113 / G:(DE-Juel1)HITEC-20170406},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000392769000035},
      doi          = {10.1016/j.memsci.2016.10.037},
      url          = {https://juser.fz-juelich.de/record/824616},
}