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@ARTICLE{Wagner:860846,
      author       = {Wagner, Maximilian and Dreßler, Christian and
                      Lohmann-Richters, Felix and Hanus, Kevin and Sebastiani,
                      Daniel and Varga, Aron and Abel, Bernd},
      title        = {{M}echanism of {I}on {C}onductivity through
                      {P}olymer-{S}tabilized {C}s{H}2{PO}4 {N}anoparticular
                      {L}ayers from {E}xperiment and {T}heory},
      journal      = {Journal of materials chemistry / A},
      volume       = {7},
      number       = {48},
      issn         = {2050-7488},
      address      = {London ˜[u.a.]œ},
      publisher    = {RSC},
      reportid     = {FZJ-2019-01501},
      pages        = {27367 - 27376},
      year         = {2019},
      abstract     = {Electrodes are currently the primary performance-limiting
                      component in low and intermediate temperature fuel cells. A
                      proven method for improving electrode performance in solid
                      acid fuel cells is to create ever finer nanostructures and
                      thus increase the electrochemically-active surface area.
                      However, this performance enhancement is limited by issues
                      of long-term stability, as well as increasing both the
                      electronic and ionic conduction pathways. Here, we combine a
                      systematic experimental study with a computational model to
                      quantify the effect of (1) the stabilizing polymer
                      polyvinylpyrrolidone as well as (2) the porosity and
                      electrode layer thickness on the average ionic conductivity
                      of the solid acid electrolyte CsH2PO4 in a composite solid
                      acid fuel cell electrode. With a multiscale simulation
                      approach using a combined molecular dynamics and lattice
                      Monte Carlo method, proton conduction through a porous
                      electrode is simulated at mesoscopic timescales while
                      retaining near-atomistic structured evolution.
                      Electrochemical impedance spectroscopy is used to evaluate
                      the porous electrodes obtained via spray drying. Both
                      approaches reveal a similar and significant contribution of
                      the porous electrolyte layer to the overall cell resistance.
                      This indicates that geometrical parameters, as well as
                      stabilizing materials may play an essential role when
                      designing a high-performance solid acid fuel cell.},
      cin          = {IEK-14},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IEK-14-20191129},
      pnm          = {135 - Fuel Cells (POF3-135)},
      pid          = {G:(DE-HGF)POF3-135},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000502302300015},
      doi          = {10.1039/C9TA04275J},
      url          = {https://juser.fz-juelich.de/record/860846},
}