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@ARTICLE{Reimer:255572,
author = {Reimer, Uwe and Ehlert, Jannik and Janssen, Holger and
Lehnert, Werner},
title = {{W}ater distribution in high temperature polymer
electrolyte fuel cells},
journal = {International journal of hydrogen energy},
volume = {41},
number = {3},
issn = {0360-3199},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2015-05713},
pages = {1837 - 1845},
year = {2016},
abstract = {In this work a high temperature polymer electrolyte fuel
cell based on a phosphoric acid doped polybenzimidazole
membrane is operated at 160 °C on dry air and dry hydrogen.
The anodic stoichiometry was varied to resemble typical
operation with pure hydrogen or reformate gas. At the outlet
of the fuel cell liquid water was collected by condensers.
The resulting amounts of liquid water from cathode and anode
were computationally analyzed. The results yielded an
effective diffusion coefficient of water vapor of
D≈2.7⋅10−7D≈2.7⋅10−7 m2 s−1, which is the
average value for the cell based on the water partial
pressures at the outlets. From the calculated water partial
pressures at the anode and cathode it can be concluded that
the concentration of phosphoric acid differs significantly
within catalyst layer of the anode and cathode. Finally, the
crossover of hydrogen and oxygen was shown to depend on the
swelling of the membrane.},
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:000369461500048},
doi = {10.1016/j.ijhydene.2015.11.106},
url = {https://juser.fz-juelich.de/record/255572},
}