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@ARTICLE{Lin:897360,
      author       = {Lin, Jingjing and Noferini, Daria and Veroutis, Emmanouil
                      and Korte, Carsten and Holderer, Olaf},
      title        = {{T}he {C}harge {T}ransport {M}echanism in
                      {B}rønsted-{A}cidic {P}rotic {I}onic {L}iquid/{W}ater
                      {S}ystems – {A}n {NMR} and {QENS} {S}tudy},
      journal      = {Journal of molecular liquids},
      volume       = {343},
      issn         = {0167-7322},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2021-03748},
      pages        = {117712 -},
      year         = {2021},
      abstract     = {In this study, a protic ionic liquid (PIL),
                      2-Sulfoethylmethylammonium triflate [2-Sema][TfO] is
                      considered as a potential new proton conducting electrolyte
                      for future polymer membrane fuel cells capable of ambient
                      air operation above 100 °C. The proton dynamics of the PIL
                      with residual water are examined as a function of the
                      hydration level on different time scales using pulsed field
                      gradient nuclear magnetic resonance (PFG-NMR) and
                      quasi-elastic neutron scattering (QENS). The separation of
                      the different contributing relaxation processes enables a
                      quantification of the proton fractions for the underlying
                      hopping or vehicular motions. The hopping motion of the
                      water in the time scale of picosecond and the vehicular
                      motion in the time scale of nanosecond are detected by means
                      of QENS. Such dynamic processes can be well described by the
                      Chudley-Elliot jump model. This emphasised the presence of
                      fixed jump lenghts. In the timescale of millisecond, the
                      cooperative transport of the active protons of the acidic
                      SO3H group and of the H2O molecules, as well as the
                      vehicular transport of the PIL cations are detected by NMR.
                      The different diffusion coefficients obtained by the NMR and
                      QENS techniques are discussed in detail.},
      cin          = {JCNS-FRM-II / MLZ / JCNS-4 / JCNS-1 / IEK-14},
      ddc          = {540},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 / I:(DE-588b)4597118-3 /
                      I:(DE-Juel1)JCNS-4-20201012 / I:(DE-Juel1)JCNS-1-20110106 /
                      I:(DE-Juel1)IEK-14-20191129},
      pnm          = {6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ)
                      (POF4-6G4) / 1231 - Electrochemistry for Hydrogen (POF4-123)
                      / 632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632)},
      pid          = {G:(DE-HGF)POF4-6G4 / G:(DE-HGF)POF4-1231 /
                      G:(DE-HGF)POF4-632},
      experiment   = {EXP:(DE-MLZ)SPHERES-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000708703200074},
      doi          = {10.1016/j.molliq.2021.117712},
      url          = {https://juser.fz-juelich.de/record/897360},
}