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Evaluation of a sulfophenylated polysulfone membrane in a fuel cell at 60 to 110 °C

Ekström, Henrik; Lafitte, Benoit LU ; Ihonen, Jari; Markusson, Henrik; Jacobsson, Per; Lundblad, Anders; Jannasch, Patric LU and Lindbergh, Göran (2007) In Solid State Ionics 178(13-14). p.959-966
Abstract
A novel sulfophenylated polysulfone membrane material has been evaluated in a hydrogen/oxygen fuel cell using Nafion-impregnated commercial electrodes. Comparative measurements were performed with Nafion membranes to distinguish between different sources of potential losses. The operational temperatures in the experiments ranged from 60 to 110 °C, and the effect of different humidifying conditions was investigated. Membranes that were operated over 300 h under fully humidified conditions showed a slight increase in the cell resistance. At lower humidification levels the cell resistance increased significantly. No difference in the membrane composition between active areas and areas not subjected to ionic currents could be detected by... (More)
A novel sulfophenylated polysulfone membrane material has been evaluated in a hydrogen/oxygen fuel cell using Nafion-impregnated commercial electrodes. Comparative measurements were performed with Nafion membranes to distinguish between different sources of potential losses. The operational temperatures in the experiments ranged from 60 to 110 °C, and the effect of different humidifying conditions was investigated. Membranes that were operated over 300 h under fully humidified conditions showed a slight increase in the cell resistance. At lower humidification levels the cell resistance increased significantly. No difference in the membrane composition between active areas and areas not subjected to ionic currents could be detected by ATR-IR or Raman spectroscopy after fuel cell testing. The best fuel cell performance for these membranes was found at 90 °C and 100 °C. The current density at a cell voltage of 0.5 V ranged between 100 and 200 mA cm− 2 depending on the operating conditions. The relatively low current densities found when using the new membrane material are explained by high ionic contact resistances between the electrodes and the membrane. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Polysulfone, Fuel cell, Membrane, Durability, Humidity, Polymer electrolyte
in
Solid State Ionics
volume
178
issue
13-14
pages
959 - 966
publisher
Elsevier
external identifiers
  • wos:000248076300011
  • scopus:34249980042
ISSN
0167-2738
DOI
10.1016/j.ssi.2007.04.002
language
English
LU publication?
yes
id
1bf7bd12-8406-4d35-b804-12ea5a64d652 (old id 168672)
alternative location
http://www.sciencedirect.com.ludwig.lub.lu.se/science?_ob=ArticleURL&_udi=B6TY4-4NSV0TP-1&_user=745831&_coverDate=05%2F31%2F2007&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000041498&_version=1&_urlVersion=0&_userid=745831&md5=9b98ca8b29d0d840bc60e22fe71fbdbf
date added to LUP
2007-07-13 11:23:42
date last changed
2017-07-30 03:47:39
@article{1bf7bd12-8406-4d35-b804-12ea5a64d652,
  abstract     = {A novel sulfophenylated polysulfone membrane material has been evaluated in a hydrogen/oxygen fuel cell using Nafion-impregnated commercial electrodes. Comparative measurements were performed with Nafion membranes to distinguish between different sources of potential losses. The operational temperatures in the experiments ranged from 60 to 110 °C, and the effect of different humidifying conditions was investigated. Membranes that were operated over 300 h under fully humidified conditions showed a slight increase in the cell resistance. At lower humidification levels the cell resistance increased significantly. No difference in the membrane composition between active areas and areas not subjected to ionic currents could be detected by ATR-IR or Raman spectroscopy after fuel cell testing. The best fuel cell performance for these membranes was found at 90 °C and 100 °C. The current density at a cell voltage of 0.5 V ranged between 100 and 200 mA cm− 2 depending on the operating conditions. The relatively low current densities found when using the new membrane material are explained by high ionic contact resistances between the electrodes and the membrane.},
  author       = {Ekström, Henrik and Lafitte, Benoit and Ihonen, Jari and Markusson, Henrik and Jacobsson, Per and Lundblad, Anders and Jannasch, Patric and Lindbergh, Göran},
  issn         = {0167-2738},
  keyword      = {Polysulfone,Fuel cell,Membrane,Durability,Humidity,Polymer electrolyte},
  language     = {eng},
  number       = {13-14},
  pages        = {959--966},
  publisher    = {Elsevier},
  series       = {Solid State Ionics},
  title        = {Evaluation of a sulfophenylated polysulfone membrane in a fuel cell at 60 to 110 °C},
  url          = {http://dx.doi.org/10.1016/j.ssi.2007.04.002},
  volume       = {178},
  year         = {2007},
}