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@ARTICLE{alWahish:188357,
      author       = {al-Wahish, A. and Jalarvo, N. and Bi, Z. and Herwig, K. W.
                      and Bridges, C. A. and Paranthaman, M. P. and Mandrus, D.},
      title        = {{F}ast {P}roton {D}iffusion in {C}a-doped {L}a{PO}4 studied
                      by {Q}uasi-{E}lastic {N}eutron {S}cattering},
      journal      = {The journal of physical chemistry / C},
      volume       = {118},
      number       = {35},
      issn         = {1932-7455},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {FZJ-2015-01763},
      pages        = {20112-20121},
      year         = {2014},
      abstract     = {We have investigated the diffusion dynamics of protons in
                      hydrated $4.2\%Ca-doped$ LaPO4, a candidate electrolyte for
                      proton-conducting intermediate temperaturefuel cells. The
                      macroscopic and microscopic dynamics have been studied
                      usingelectrochemical impedance spectroscopy (EIS) and
                      quasi-elastic neutron scattering(QENS), respectively. The
                      conductivity of the bulk hydrated sample was determined
                      inthe temperature range of 500−850 °C by EIS and showed a
                      clear signature of protonconductivity with an activation
                      energy of about 1.0 eV. The QENS experiment revealed afast
                      dynamical process below 500 °C that was not observed by
                      EIS. The activation energyof the fast proton diffusion is
                      0.09 eV in the temperature range from 150 °C to 500 °C.},
      cin          = {ICS-1 / Neutronenstreuung ; JCNS-1 / JCNS-SNS},
      ddc          = {540},
      cid          = {I:(DE-Juel1)ICS-1-20110106 / I:(DE-Juel1)JCNS-1-20110106 /
                      I:(DE-Juel1)JCNS-SNS-20110128},
      pnm          = {54G - JCNS (POF2-54G24) / 451 - Soft Matter Composites
                      (POF2-451)},
      pid          = {G:(DE-HGF)POF2-54G24 / G:(DE-HGF)POF2-451},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000341337700008},
      doi          = {10.1021/jp5048425},
      url          = {https://juser.fz-juelich.de/record/188357},
}