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@ARTICLE{Loutati:912435,
      author       = {Loutati, Asmaa and Guillon, Olivier and Tietz, Frank and
                      Fattakhova-Rohlfing, Dina},
      title        = {{N}a{SICON}-type solid-state {L}i+ ion conductors with
                      partial polyanionic substitution of phosphate with silicate},
      journal      = {Open ceramics},
      volume       = {12},
      issn         = {2666-5395},
      address      = {Amsterdam},
      publisher    = {Elsevier},
      reportid     = {FZJ-2022-05614},
      pages        = {100313},
      year         = {2022},
      note         = {Grant names:BMBF-03XP0173A Kompetenzcluster
                      Festbatt-OxideBMBF-13XP0434A Kompetenzcluster
                      Festbatt2-Oxide},
      abstract     = {The increasing demand for safe energy storage has led to
                      intensive investigations of solid-state Li+-ion conductors
                      in the Li2O-M2O3–ZrO2–SiO2–P2O5 system. As a
                      continuation of the cation substitution in this system,
                      which we reported on very recently, a study of the impact of
                      polyanionic substitutions on ionic conductivity was carried
                      out here in two series, Li3+xSc2SixP3-xO12 (0 ≤
                      x ≤ 0.6) and Li1.2+xSc0.2Zr1.8SixP3-xO12 (0.3 ≤
                      x ≤ 2.8), with the aim of increasing ionic conductivity,
                      determing the phase stability, and optimizing the processing
                      conditions – especially decreasing the sintering
                      temperatures – depending on the level of substitution.The
                      polyanionic substitution, i.e. the substitution of (PO4)3-
                      with (SiO4)4-, in the Li2O–Sc2O3–ZrO2–SiO2–P2O5
                      system revealed that a) the sintering temperature can
                      effectively be reduced, b) the presence of zirconium can
                      limit the evaporation of lithium species even at high
                      sintering temperatures, c) the purity of the NaSICON
                      materials has a strong influence on the grain boundary
                      resistance, and therefore on the ionic conductivity, and d)
                      the silicate substitution in Li3+xSc2SixP3-xO12 (0 ≤
                      x ≤ 0.6) stabilized the monoclinic polymorph (space
                      group P21/n) with an enhanced total ionic conductivity at
                      25 °C from 6.5 × 10−7 S cm−1 to
                      1.2 × 10−5 S cm−1 for x = 0 to x = 0.15,
                      respectively, exhibiting the highest ionic conductivity at
                      25 °C among the compositions investigated.},
      cin          = {IEK-1 / IEK-12},
      ddc          = {600},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / I:(DE-Juel1)IEK-12-20141217},
      pnm          = {1221 - Fundamentals and Materials (POF4-122)},
      pid          = {G:(DE-HGF)POF4-1221},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001103438600004},
      doi          = {10.1016/j.oceram.2022.100313},
      url          = {https://juser.fz-juelich.de/record/912435},
}