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@ARTICLE{Ran:862889,
      author       = {Ran, Ke and Deibert, W. and Ivanova, M. E. and Meulenberg,
                      W. A. and Mayer, J.},
      title        = {{C}rystal structure investigation of
                      {L}a5.4{W}1−y{M}oy{O}12−δ for gas separation by
                      high-resolution transmission electron microscopy},
      journal      = {Scientific reports},
      volume       = {9},
      number       = {1},
      issn         = {2045-2322},
      address      = {[London]},
      publisher    = {Macmillan Publishers Limited, part of Springer Nature},
      reportid     = {FZJ-2019-03072},
      pages        = {3274},
      year         = {2019},
      abstract     = {Lanthanum tungstate (LWO) and LWO with 20 $at.\%$ and 35
                      $at.\%$ molybdenum substituting tungsten were prepared by
                      the Pechini method. Phase purity and successful Mo
                      substitution inside these dense LWO membrane materials were
                      confirmed by conventional and high resolution transmission
                      electron microscopy techniques. The split of La2/W2 site by
                      around 0.3 Å was proven. Extra reflections show up in the
                      diffraction patterns from Mo-substituted LWO, and together
                      with simulations, these reflections were recognized as
                      forbidden reflections in a non-substituted LWO system, while
                      the extinction rules are broken by Mo substitution due to
                      the different scattering factors of W and Mo.
                      Energy-dispersive X-ray chemical mapping allowed direct
                      visualization of individual atomic columns, and revealed
                      that all Mo is located at the W1 sites in the Mo-substituted
                      LWO. Moreover, the diffuse scattering in diffraction
                      patterns provides direct evidence of short range clustering
                      of oxygen vacancies and could be further related to the
                      oxygen conduction of the LWO memb},
      cin          = {IEK-1 / ER-C-2},
      ddc          = {600},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / I:(DE-Juel1)ER-C-2-20170209},
      pnm          = {113 - Methods and Concepts for Material Development
                      (POF3-113)},
      pid          = {G:(DE-HGF)POF3-113},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:30824737},
      UT           = {WOS:000459983900080},
      doi          = {10.1038/s41598-019-39758-2},
      url          = {https://juser.fz-juelich.de/record/862889},
}