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@ARTICLE{Zeng:891375,
      author       = {Zeng, Fanlin and Baumann, Stefan and Malzbender, Jürgen
                      and Nijmeijer, Arian and Winnubst, Louis and Guillon,
                      Olivier and Schwaiger, Ruth and Meulenberg, Wilhelm A.},
      title        = {{E}nhancing oxygen permeation of solid-state reactive
                      sintered {C}e0.8{G}d0.2{O}2--{F}e{C}o2{O}4 composite by
                      optimizing the powder preparation method},
      journal      = {Journal of membrane science},
      volume       = {628},
      issn         = {0376-7388},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2021-01464},
      pages        = {119248 -},
      year         = {2021},
      abstract     = {Dual phase membranes with mixed ionic-electronic
                      conductivity exhibit promising properties for applications
                      in pure oxygen separation under harsh atmospheres. The
                      conductivity of an individual phase within dual phase
                      membranes is often attenuated by the blocking effects from
                      the other phase(s). Here, facile but effective ways are
                      reported to alleviate such effects by optimizing the powder
                      preparation method for a solid-state reactive sintering
                      process. Powder mixtures with a nominal composition 85
                      $wt\%$ Ce0.8Gd0.2O2-δ:15 $wt\%$ FeCo2O4 were prepared by
                      traditional wet ball milling method, as well as a moderate
                      dry mixing approach. Using a modified wet ball milling
                      procedure, homogenous powder mixtures with fine particle
                      size are obtained and the synthesized membrane shows a fine
                      and homogenous microstructure that realizes high oxygen
                      permeance. Besides, a novel “dual phase” membrane having
                      one ionic conductive monophase zone and one mixed
                      ionic-electronic conductive multiphase zone was sintered
                      using dry-mixed powder mixtures. With individual mesoscale
                      percolations, two phase zones provide relatively straight
                      paths for ionic conduction and electronic conduction,
                      respectively, which contributes to achieving the highest
                      oxygen permeance among all the sintered membranes.},
      cin          = {IEK-1 / IEK-2 / JARA-ENERGY},
      ddc          = {570},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / I:(DE-Juel1)IEK-2-20101013 /
                      $I:(DE-82)080011_20140620$},
      pnm          = {123 - Chemische Energieträger (POF4-123)},
      pid          = {G:(DE-HGF)POF4-123},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000697104000002},
      doi          = {10.1016/j.memsci.2021.119248},
      url          = {https://juser.fz-juelich.de/record/891375},
}