% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@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},
}