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@ARTICLE{He:861952,
      author       = {He, Guanghu and Baumann, Stefan and Liang, Fangyi and
                      Hartmann, Heinrich and Jiang, Heqing and Meulenberg, Wilhelm
                      Albert},
      title        = {{P}hase stability and oxygen permeability of {F}e-based
                      {B}a{F}e0.9{M}g0.05{X}0.05{O}3 ({X} = {Z}r, {C}e, {C}a)
                      membranes for air separation},
      journal      = {Separation and purification technology},
      volume       = {220},
      issn         = {1383-5866},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2019-02358},
      pages        = {176 - 182},
      year         = {2019},
      abstract     = {The effects of various dopants including Zr4+, Ce4+ and
                      Ca2+ on the structure and oxygen permeability of B-site
                      doped BaFe0.9Mg0.05X0.05O3−δ (BFM-X) perovskite-type
                      oxygen transport membranes were studied. Slight X cation
                      doping could stabilize the cubic structure of BFM-X
                      perovskite down to room temperature. XRD, SEM and
                      thermogravimetric results revealed that all the cubic BFM-X
                      oxides exhibited good phase stability under argon atmosphere
                      without any phase changes. The weight loss of BFM-Ce from TG
                      analysis suggests the reduction of cerium ions at high
                      temperatures, which may account for its larger electrical
                      conductivity and higher oxygen permeability comparing to
                      BFM-Zr and BFM-Ca membranes. X-ray photoelectron
                      spectroscopy (XPS) data revealed that Ca dopant with larger
                      size caused the mismatch with Fe ions and led to the
                      substitution of Ca ions at both Fe and Ba site in BFM-Ca
                      oxide, being detrimental to electrical conductivity and
                      oxygen permeation. Among these membranes, BFM-Ce has the
                      highest oxygen permeability and good long term permeation
                      stability under air/argon gradient, thus it was recommended
                      as a potential and promising material for air separation.},
      cin          = {IEK-1 / ZEA-3},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / I:(DE-Juel1)ZEA-3-20090406},
      pnm          = {113 - Methods and Concepts for Material Development
                      (POF3-113)},
      pid          = {G:(DE-HGF)POF3-113},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000466250100019},
      doi          = {10.1016/j.seppur.2019.03.058},
      url          = {https://juser.fz-juelich.de/record/861952},
}