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@ARTICLE{Xia:909121,
      author       = {Xia, Lu and Jiang, Wulyu and Hartmann, Heinrich and Mayer,
                      Joachim and Lehnert, Werner and Shviro, Meital},
      title        = {{M}ultistep {S}ulfur {L}eaching for the {D}evelopment of a
                      {H}ighly {E}fficient and {S}table {N}i{S} x /{N}i({OH}) 2
                      /{N}i{OOH} {E}lectrocatalyst for {A}nion {E}xchange
                      {M}embrane {W}ater {E}lectrolysis},
      journal      = {ACS applied materials $\&$ interfaces},
      volume       = {14},
      number       = {17},
      issn         = {1944-8244},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {FZJ-2022-03021},
      pages        = {19397 - 19408},
      year         = {2022},
      abstract     = {Nickel (poly)sulfides have been widely studied as anodic
                      catalysts for alkaline water electrolysis owing to their
                      diverse morphologies, high catalytic activities in the
                      oxygen evolution reaction (OER), and low cost. To utilize
                      low-cost and high-efficiency polysulfides with
                      industry-relevant cycling stability, we develop a Ni-rich
                      NiSx/Ni(OH)2/NiOOH catalyst derived from NiS2/Ni3S4
                      nanocubes. Ni-rich NiSx/Ni(OH)2/NiOOH shows improved OER
                      catalytic activity (η = 374 mV@50 mA cm–2) and stability
                      $(0.1\%$ voltage increase) after 65 h of a galvanostatic
                      test at 10 mA cm–2 compared with commercial Ni/NiO and
                      hydrothermally synthesized Ni(OH)2 (both show η > 460 mV@50
                      mA cm–2 along with 4.40 and $1.92\%$ voltage increase,
                      respectively). A water-splitting electrolyzer based on
                      Pt/C||AF1-HNN8-50||NiSx/Ni(OH)2/NiOOH exhibits a current
                      density of 1800 mA cm–2 at 2.0 V and 500 h high-rate
                      stability at 1000 mA cm–2 with negligible attenuation of
                      only 0.12 mV h–1. This work provides an understanding of
                      truly stable species, intrinsic active phases of Ni
                      polysulfides, their high-rate stability in a real cell, and
                      sheds light on the development of stable chalcogenide-based
                      anodic electrocatalysts for anion exchange membrane water
                      electrolysis (AEMWE).},
      cin          = {IEK-14 / ZEA-3 / ER-C-2},
      ddc          = {600},
      cid          = {I:(DE-Juel1)IEK-14-20191129 / I:(DE-Juel1)ZEA-3-20090406 /
                      I:(DE-Juel1)ER-C-2-20170209},
      pnm          = {1231 - Electrochemistry for Hydrogen (POF4-123)},
      pid          = {G:(DE-HGF)POF4-1231},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {35452215},
      UT           = {WOS:000812960400001},
      doi          = {10.1021/acsami.2c01302},
      url          = {https://juser.fz-juelich.de/record/909121},
}