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@ARTICLE{Elumeeva:810769,
      author       = {Elumeeva, Karina and Masa, Justus and Sierau, Jennyfer and
                      Tietz, Frank and Muhler, Martin and Schuhmann, Wolfgang},
      title        = {{P}erovskite-based bifunctional electrocatalysts for oxygen
                      evolution and oxygen reduction in alkaline electrolytes},
      journal      = {Electrochimica acta},
      volume       = {208},
      issn         = {0013-4686},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2016-03358},
      pages        = {25 - 32},
      year         = {2016},
      abstract     = {Due to the high cost of precious metal-based
                      electrocatalysts for oxygen reduction and oxygen evolution,
                      the development of alternative low cost and efficient
                      catalysts is of high importance for energy storage and
                      conversion technologies. Although non-precious catalysts
                      that can efficiently catalyze oxygen reduction and oxygen
                      evolution have been developed, electrocatalysts with high
                      bifunctional activity for both oxygen evolution and
                      reduction are needed. Perovskites based on modified
                      lanthanum cobaltite possess significant activity for the
                      oxygen evolution reaction. We describe the synthesis of a
                      bifunctional oxygen electrode with simultaneous activity for
                      the oxygen evolution reaction (OER) and the oxygen reduction
                      reaction (ORR) in alkaline media by direct growth of
                      nitrogen-doped carbon nanotubes on the surface of a
                      perovskite containing Co and Fe by means of chemical vapor
                      deposition. The difference in the overvoltage between ORR
                      (at 1 mA/cm2) and OER (at 10 mA/cm2) was below 880 mV in 0.1
                      M KOH. The formation of H2O2 during the ORR was reduced by
                      at least three fold when using the bifunctional catalyst as
                      compared to the non-modified perovskite. Long-term
                      durability tests indicate stable performance for at least 37
                      h during the OER and 23 h during the ORR.},
      cin          = {IEK-1},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {131 - Electrochemical Storage (POF3-131) / 134 -
                      Electrolysis and Hydrogen (POF3-134)},
      pid          = {G:(DE-HGF)POF3-131 / G:(DE-HGF)POF3-134},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000377545300004},
      doi          = {10.1016/j.electacta.2016.05.010},
      url          = {https://juser.fz-juelich.de/record/810769},
}