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@ARTICLE{Lin:894219,
      author       = {Lin, Jingjing and Willbold, Sabine and Zinkevich, Tatiana
                      and Indris, Sylvio and Korte, Carsten},
      title        = {{I}onic ({P}roton) transport and molecular interaction of
                      ionic {L}iquid–{PBI} blends for the use as electrolyte
                      membranes},
      journal      = {Journal of molecular liquids},
      volume       = {342},
      issn         = {0167-7322},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2021-03108},
      pages        = {116964},
      year         = {2021},
      abstract     = {Protic ionic liquids (PILs) are discussed as new candidates
                      for the use as non-aqueous electrolytes for fuel cells
                      operating at temperatures above 80 °C. The molecular
                      interactions in Diethylmethylammonium triflate ([Dema][TfO])
                      doped polybenzimidazole (PBI) blend membranes and the proton
                      transport mechanism were investigated by means of TGA, IR
                      and NMR. The mobility of the PIL ions is restricted to the
                      PBI host polymer. The [Dema]+ cations and [TfO]− anions
                      interact strongly via H bonds with the polar groups of the
                      PBI chains. This will significantly confine the proton
                      conductivity of the membrane to vehicular transport. The
                      proton transport was investigated by comparing to an
                      analogous liquid state model using the monomer benzimidazole
                      (BIm) instead of the PBI polymer. During fuel cell
                      operation, it is unavoidable that residual water is present
                      in significant quantities. Resulting from 1H NMR and PFG
                      self-diffusion measurements, proton transport in the liquid
                      state model takes place via a cooperative mechanism
                      involving all of the species NH[Dema]+/NHBIm/H2O depending
                      on the water fraction. Thus, it is suggested that
                      conductivity in the PIL–PBI membrane be mainly provided by
                      the cooperative transport of the protons. This study is
                      intended to broaden understanding of the structure and
                      proton transport mechanism, as well as to give possible ways
                      to optimize PIL electrolyte doped polymer blend membranes
                      for intermediate operating temperatures.},
      cin          = {ZEA-3 / IEK-14},
      ddc          = {540},
      cid          = {I:(DE-Juel1)ZEA-3-20090406 / 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:000708689300025},
      doi          = {10.1016/j.molliq.2021.116964},
      url          = {https://juser.fz-juelich.de/record/894219},
}