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@ARTICLE{LohmannRichters:903812,
      author       = {Lohmann-Richters, F. P. and Renz, S. and Lehnert, W. and
                      Müller, Martin and Carmo, M.},
      title        = {{R}eview—{C}hallenges and {O}pportunities for {I}ncreased
                      {C}urrent {D}ensity in {A}lkaline {E}lectrolysis by
                      {I}ncreasing the {O}perating {T}emperature},
      journal      = {Journal of the Electrochemical Society},
      volume       = {168},
      number       = {11},
      issn         = {0013-4651},
      address      = {Bristol},
      publisher    = {IOP Publishing},
      reportid     = {FZJ-2021-05445},
      pages        = {114501 -},
      year         = {2021},
      abstract     = {The highly-efficient, low-cost, large-scale production of
                      green hydrogen by means of electrolysis is urgently needed
                      for achieving a decarbonized energy supply. Alkaline water
                      electrolysis is a wellestablished technology with relatively
                      low costs which does not require scarce noble metal
                      catalysts, but it suffers from low current densities.
                      Increasing the operating temperature can allow this
                      limitation to be overcome. This article summarizes both
                      long-standing and recent developments in alkaline water
                      electrolysis at increased temperature and sheds light on the
                      challenges and unique opportunities of this approach. It is
                      found that electrochemical improvements induced by higher
                      temperature enable competitive current densities and offer
                      unique possibilities for thermal management. The selection
                      and development of stable materials, catalysts, and
                      diaphragms is challenging, but some have proven long-term
                      stability up to at least 150 °C and promising candidates
                      are available at up to 200 °C. Further research will allow
                      the present challenges to be overcome by understanding and
                      improving the basic processes and components for alkaline
                      electrolysis at increased temperature and capitalizing on
                      its unique advantages.},
      cin          = {IEK-14},
      ddc          = {660},
      cid          = {I:(DE-Juel1)IEK-14-20191129},
      pnm          = {1231 - Electrochemistry for Hydrogen (POF4-123)},
      pid          = {G:(DE-HGF)POF4-1231},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000717274400001},
      doi          = {10.1149/1945-7111/ac34cc},
      url          = {https://juser.fz-juelich.de/record/903812},
}