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@ARTICLE{Colpan:826722,
      author       = {Colpan, C. Ozgur and Ouellette, David and Glüsen, Andreas
                      and Müller, Martin and Stolten, Detlef},
      title        = {{R}eduction of methanol crossover in a flowing
                      electrolyte-direct methanol fuel cell},
      journal      = {International journal of hydrogen energy},
      volume       = {42},
      number       = {33},
      issn         = {0360-3199},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2017-00940},
      pages        = {21530-21545},
      year         = {2017},
      abstract     = {The flowing electrolyte-direct methanol fuel cell (FE-DMFC)
                      is a type of fuel cell in which a flowing liquid electrolyte
                      is used, in addition to two solid membranes, to reduce
                      methanol crossover. In this study, FE-DMFCs having new
                      materials and design were manufactured and studied. In this
                      design, the flow field plates were made of stainless steel
                      2205 and had a pin type flow structure. PTFE treated carbon
                      felts were used as the backing layers as well as the flowing
                      electrolyte channel. Nafion® 115 or Nafion® 212 was used
                      as the membranes. The polarization curves and methanol
                      crossover current densities under different methanol
                      concentrations and flow rates of sulfuric acid were measured
                      using fully automated DMFC test stations. The performances
                      of the FE-DMFCs were compared with those of the DMFCs having
                      a single or double membrane. This study is, to the authors'
                      knowledge, the first experimental study on measuring the
                      methanol crossover in a FE-DMFC. The results of this study
                      demonstrate that this technology enables a significant
                      reduction of methanol permeation. At different cell current
                      densities, Faradaic efficiencies up to $98\%$ were achieved.
                      It was shown that for a fixed flow rate of sulfuric acid
                      solution (5 ml/min), at 0.1 A/cm2, the Nafion® 115 based
                      FE-DMFC operating at 1 M yields the highest cell voltage
                      (0.38 V). The maximum power density of the FE-DMFC (0.0561
                      W/cm2) was achieved when the cell operates with 3 M methanol
                      concentration and 10 ml/min sulfuric acid solution at 0.3
                      A/cm2.},
      cin          = {IEK-3},
      ddc          = {660},
      cid          = {I:(DE-Juel1)IEK-3-20101013},
      pnm          = {135 - Fuel Cells (POF3-135)},
      pid          = {G:(DE-HGF)POF3-135},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000410010600054},
      doi          = {10.1016/j.ijhydene.2017.01.004},
      url          = {https://juser.fz-juelich.de/record/826722},
}