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@ARTICLE{Ivanova:861378,
      author       = {Ivanova, Mariya and Deibert, W. and Marcano, D. and
                      Escolástico, S. and Mauer, G. and Meulenberg, Wilhelm
                      Albert and Bram, M. and Serra, J. M. and Vaßen, R. and
                      Guillon, O.},
      title        = {{L}anthanum tungstate membranes for {H}2 extraction and
                      {CO}2 utilization: {F}abrication strategies based on
                      sequential tape casting and plasma-spray physical vapor
                      deposition},
      journal      = {Separation and purification technology},
      volume       = {219},
      issn         = {1383-5866},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2019-01856},
      pages        = {100 - 112},
      year         = {2019},
      abstract     = {In the context of energy conversion efficiency and
                      decreasing greenhouse gas emissions from power generation
                      and energy-intensive industries, membrane technologies for
                      H2 extraction and CO2 capture and utilization become
                      pronouncedly important. Mixed protonic-electronic conducting
                      ceramic membranes are hence attractive for the
                      pre-combustion integrated gasification combined cycle,
                      specifically in the water gas shift and H2 separation
                      process, and also for designing catalytic membrane reactors.
                      This work presents the fabrication, microstructure and
                      functional properties of Lanthanum tungstates
                      (La28−xW4+xO54+δ, LaWO) asymmetric membranes supported on
                      porous ceramic and porous metallic substrates fabricated by
                      means of the sequential tape casting route and plasma
                      spray-physical vapor deposition (PS-PVD). Pure LaWO and W
                      site substituted LaWO were employed as membrane materials
                      due to the promising combination of properties: appreciable
                      mixed protonic-electronic conductivity at intermediate
                      temperatures and reducing atmospheres, good sinterability
                      and noticeable chemical stability under harsh operating
                      conditions. As substrate materials porous LaWO
                      (non-substituted), MgO and Crofer22APU stainless steel were
                      used to support various LaWO membrane layers. The effect of
                      fabrication parameters and material combinations on the
                      assemblies’ microstructure, LaWO phase formation and gas
                      tightness of the functional layers was explored along with
                      the related fabrication challenges for shaping LaWO layers
                      with sufficient quality for further practical application.
                      The two different fabrication strategies used in the present
                      work allow for preparing all-ceramic and ceramic-metallic
                      assemblies with LaWO membrane layers with thicknesses
                      between 25 and 60 μm and H2 flux of ca. 0.4 ml/min cm2
                      measured at 825 °C in $50 vol\%$ H2 in He dry feed and
                      humid Ar sweep configuration. Such a performance is an
                      exceptional achievement for the LaWO based H2 separation
                      membranes and it is well comparable with the H2 flux
                      reported for other newly developed dual phase cer-cer and
                      cer-met membranes.},
      cin          = {IEK-1 / JARA-ENERGY},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / $I:(DE-82)080011_20140620$},
      pnm          = {113 - Methods and Concepts for Material Development
                      (POF3-113)},
      pid          = {G:(DE-HGF)POF3-113},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000465054400012},
      doi          = {10.1016/j.seppur.2019.03.015},
      url          = {https://juser.fz-juelich.de/record/861378},
}