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@ARTICLE{Ceretti:859489,
      author       = {Ceretti, Monica and Wahyudi, Olivia and André, Gilles and
                      Meven, Martin and Villesuzanne, Antoine and Paulus, Werner},
      title        = {({N}d/{P}r) 2 {N}i{O} 4+δ : {R}eaction {I}ntermediates and
                      {R}edox {B}ehavior {E}xplored by in {S}itu {N}eutron
                      {P}owder {D}iffraction during {E}lectrochemical {O}xygen
                      {I}ntercalation},
      journal      = {Inorganic chemistry},
      volume       = {57},
      number       = {8},
      issn         = {1520-510X},
      address      = {Washington, DC},
      publisher    = {American Chemical Society},
      reportid     = {FZJ-2019-00342},
      pages        = {4657 - 4666},
      year         = {2018},
      abstract     = {Oxygen intercalation/deintercalation in Pr2NiO4+δ and
                      Nd2NiO4+δ was followed by in situ by neutron powder
                      diffraction during the electrochemical oxidation/reduction
                      reaction, in a dedicated reaction cell at room temperature.
                      Three phases were identified for both systems: orthorhombic
                      RE2NiO4.23, obtained by classical solid-state reaction, gets
                      reduced in a 2-phase reaction step to a tetragonal
                      intermediate phase RE2NiO4+δ with 0.07 ≤ δ ≤ 0.10,
                      which again transforms on further reduction in a 2-phase
                      reaction step towards the stoichiometric RE2NiO4.0.
                      Electrochemical oxidation does not proceed fully reversibly
                      for both cases: while the re-oxidation of Nd2NiO4+δ is
                      limited to the tetragonal intermediate phase with δ = 0.10,
                      the homologous Pr2NiO4+δ can be re-oxidized up to δ =
                      0.17, showing orthorhombic symmetry. For the tetragonal
                      Pr2NiO4.12 phase, we were able to establish a complex
                      anharmonic displacement behavior as analyzed by single
                      crystal neutron diffraction and Maximum Entropy Analysis, in
                      agreement with a low-T diffusion pathway for oxygen ions
                      activated by lattice dynamics.},
      cin          = {JCNS-FRM-II / JCNS-2 / MLZ},
      ddc          = {540},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-2-20110106 / I:(DE-588b)4597118-3},
      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 / EXP:(DE-MLZ)External-20140101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:29620364},
      UT           = {WOS:000430437400050},
      doi          = {10.1021/acs.inorgchem.8b00393},
      url          = {https://juser.fz-juelich.de/record/859489},
}