Journal
FUEL CELLS
Volume 12, Issue 4, Pages 589-598Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/fuce.201100147
Keywords
Electrolyte; Fuel cell; Membrane; Polymer; Proton conductivity
Categories
Funding
- Korea Science and Engineering Foundation (KOSEF) [R0A-2007-000-10029-0]
- National Research Foundation of Korea
- Korean Government (MEST) [NRF-2009-0093033, NRF-2011-0029478]
- National Research Foundation of Korea [2012M1A2A2671684] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
Sulfonated poly(arylene ether ketone) (SPAEK) possessing the pendant carboxylic acid groups was synthesized. The carboxylic acid groups of SPAEK were reacted with a cross-linking reagent to prepare a cross-linked membrane with a high ion exchange capacity (IEC), a high oxidative stability, and an excellent mechanical strength. The cross-linking hindered the mobility of the polymer chains and thus strongly affected the water uptake and the methanol permeability of the membranes. Also, as the cross-linker used in this study bore sulfonic acid groups, cross-linking did not lead to a noticeable loss of the proton conductivity. The cross-linked SPAEK membrane with 20% cross-linking density, CSPAEK-20% membrane, exhibited a high proton conductivity of 0.045?S?cm1 associated with a high IEC value of 1.78?mmol?g1 but a low methanol permeability of 4.3?x?107?cm2?s1. The CSPAEK-20% membrane also showed excellent cell performance and oxidation resistance.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available