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@ARTICLE{Wahyudi:282889,
      author       = {Wahyudi, O. and Ceretti, M. and Weill, I. and Cousson, A.
                      and Weill, F. and Meven, M. and Guerre, M. and Villesuzanne,
                      A. and Bassat, J.-M. and Paulus, W.},
      title        = {{G}rowth of high quality single crystals of strontium doped
                      ({N}d,{P}r)-nickelates, {N}d $_{2−x}$ {S}r $_{x}$ {N}i{O}
                      $_{4+δ}$ and {P}r $_{2−x}$ {S}r $_{x}$ {N}i{O} $_{4+δ}$},
      journal      = {CrystEngComm},
      volume       = {17},
      number       = {33},
      issn         = {1466-8033},
      address      = {London},
      publisher    = {RSC},
      reportid     = {FZJ-2016-01634},
      pages        = {6278 - 6285},
      year         = {2015},
      abstract     = {Large size and high quality single crystals of
                      Nd2−xSrxNiO4+δ and Pr2−xSrxNiO4+δ, with selected
                      composition (x = 0.0, 0.1 and 0.5), were grown by a
                      floating-zone technique using an image furnace. We found
                      that even small deviations from the ideal cation
                      stoichiometry led to either NiO segregation or formation of
                      Ni-poor Pr4Ni3O10−x, or RExOy intergrowth phases,
                      rendering the title compounds unstable even under ambient
                      conditions. Related to potential applications as membranes
                      in SOFC, we importantly found Nd2−xSrxNiO4+δ and
                      Pr2−xSrxNiO4+δ powders, obtained from ground
                      stoichiometric single crystals, to be stable in air at high
                      temperature (1000 °C), contrary to the partial
                      decomposition observed when synthesized as polycrystalline
                      powders by classical solid state synthesis. The presence of
                      NiO/Pr4Ni3O10−x or RExOy intergrowth phases are discussed
                      as a drawback limiting high temperature stability for
                      Pr2NiO4+δ. Grown single crystals were characterised by
                      neutron and X-ray diffraction as well as by electron
                      microscopy (SEM/EDS), revealing their excellent quality in
                      terms of composition, homogeneity and crystallinity. For
                      each crystal, the oxygen content was determined by
                      thermogravimetric analysis in a reductive atmosphere.
                      Transmission electron microscopy highlighted a complex
                      incommensurate structure for Pr2NiO4.25 and Nd2NiO4.25 with
                      a 2D modulation vector related to oxygen ordering.},
      cin          = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
                      (München) ; JCNS-FRM-II / JCNS-2},
      ddc          = {540},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-2-20110106},
      pnm          = {6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
                      / 6G15 - FRM II / MLZ (POF3-6G15)},
      pid          = {G:(DE-HGF)POF3-6G4 / G:(DE-HGF)POF3-6G15},
      experiment   = {EXP:(DE-MLZ)HEIDI-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000359270700004},
      doi          = {10.1039/C5CE00906E},
      url          = {https://juser.fz-juelich.de/record/282889},
}