TY - JOUR
T1 - Preparation and properties of epoxy-based cross-linked sulfonated poly(arylene ether ketone) proton exchange membrane for direct methanol fuel cell applications
AU - Zhang, Yang
AU - Fei, Xu
AU - Zhang, Gang
AU - Li, Hongtao
AU - Shao, Ke
AU - Zhu, Jing
AU - Zhao, Chengji
AU - Liu, Zhongguo
AU - Han, Miaomiao
AU - Na, Hui
N1 - Funding Information:
The authors thank the China High-Tech Development 863 Program (Grant No. 2007AA03Z218 ) for financial support of this work.
PY - 2010/6
Y1 - 2010/6
N2 - Sulfonated poly(arylene ether ketone) bearing pendant carboxylic acid group (C-SPAEK) had been prepared for direct methanol fuel cell applications, and subsequently cross-linked by a thermal curing reaction using hexafluoro-bisphenol-A novolac epoxy resin (HFANER) as a cross-linker. The cross-linked network structure caused significant enhancement in the mechanical properties and oxidative stability. Meanwhile, water uptake, swelling ratio and methanol permeability substantially decreased with increasing the content of cross-linker. Notably, the water uptake of C-SPAEK was 506.9% at 80 °C, but after cross-linking, Cr-SPAEK-17 exhibited a water uptake of 32.3%. Meanwhile, a 12.1% of swelling ratio was obtained which was lower than that of Nafion 117 (17.2%). Although the proton conductivities of the cross-linked membranes were lower than that of the pristine membrane, the higher selectivity defined as the proton conductivity to methanol permeability was obtained for the cross-linked membranes.
AB - Sulfonated poly(arylene ether ketone) bearing pendant carboxylic acid group (C-SPAEK) had been prepared for direct methanol fuel cell applications, and subsequently cross-linked by a thermal curing reaction using hexafluoro-bisphenol-A novolac epoxy resin (HFANER) as a cross-linker. The cross-linked network structure caused significant enhancement in the mechanical properties and oxidative stability. Meanwhile, water uptake, swelling ratio and methanol permeability substantially decreased with increasing the content of cross-linker. Notably, the water uptake of C-SPAEK was 506.9% at 80 °C, but after cross-linking, Cr-SPAEK-17 exhibited a water uptake of 32.3%. Meanwhile, a 12.1% of swelling ratio was obtained which was lower than that of Nafion 117 (17.2%). Although the proton conductivities of the cross-linked membranes were lower than that of the pristine membrane, the higher selectivity defined as the proton conductivity to methanol permeability was obtained for the cross-linked membranes.
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U2 - 10.1016/j.ijhydene.2010.03.116
DO - 10.1016/j.ijhydene.2010.03.116
M3 - Article
AN - SCOPUS:77955158390
SN - 0360-3199
VL - 35
SP - 6409
EP - 6417
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 12
ER -
