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@INPROCEEDINGS{Ma:851084,
      author       = {Ma, Qianli and Tietz, Frank and Menzler, Norbert H. and
                      Guillon, Olivier},
      title        = {{L}a0.97{N}i0.5{C}o0.5{O}3-δ as air electrode material for
                      solid oxide cells},
      reportid     = {FZJ-2018-04792},
      year         = {2018},
      abstract     = {Based on former research on perovskites in the
                      quasi-ternary system LaFeO3–LaCoO3–LaNiO3[1],
                      LaNi0.5Co0.5O3 (LNC) has been chosen as the most promising
                      air electrode material for solid oxide cells (SOCs) in this
                      system. In the present study, A-site deficiency of LNC is
                      discussed and La0.97Ni0.5Co0.5O3 (LNC97) is selected as the
                      further optimized composition, which has an electronic
                      conductivity of over 1000 S cm-1 at 800oC. Compatibility of
                      LNC97 with 8 $mol\%$ Y2O3 stabilized ZrO2 (8YSZ) is analyzed
                      and compared with that of La0.58Sr0.4Co0.8Fe0.2O3-δ (LSCF)
                      and 8YSZ. According to the requirements of the air electrode
                      materials with qualified performance, i.e. 1) high
                      electronic conductivity, 2) high ionic conductivity, and 3)
                      high catalytic activity for the oxygen reduction reaction,
                      LNC97 based electrodes are modified, characterized and
                      optimized by symmetric cell tests. Degradation of the
                      symmetric cells after 1000 h of operation is discussed.
                      Mechanisms for explaining the electrode-processes of
                      LNC97-based electrodes are raised, and full cells based on
                      optimized LNC97 material show performance of about 900 mA
                      cm-2 at 0.7 V and 800oC.[1] F. Tietz, I. ArulRaj, Q. Ma,
                      S.Baumann, A.Mahmoud, R.P.Hermann, J. Solid State Chem. 237
                      (2016) 183–191.},
      month         = {Jul},
      date          = {2018-07-22},
      organization  = {12th International Conference on
                       Ceramic Materials and Components for
                       Energy and Environmental Applications,
                       Singapore (Singapore), 22 Jul 2018 - 27
                       Jul 2018},
      subtyp        = {Invited},
      cin          = {IEK-1},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {135 - Fuel Cells (POF3-135) / SOFC - Solid Oxide Fuel Cell
                      (SOFC-20140602)},
      pid          = {G:(DE-HGF)POF3-135 / G:(DE-Juel1)SOFC-20140602},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/851084},
}