TY - JOUR
T1 - High proton-conducting polymer electrolytes based on pendent poly(arylene ether ketone) with H-bond for proton exchange membranes
AU - Zhang, Liyuan
AU - Zhang, Gang
AU - Zhao, Chengji
AU - Liu, Zhongguo
AU - Jiang, Hao
AU - Xu, Shuai
AU - Li, Mingyu
AU - Xu, Dan
AU - Na, Hui
N1 - Funding Information:
This work is supported by the National Nature Science Foundation of China (Grant Nos. 21074044 & 51101073 & 21104022 ).
PY - 2013
Y1 - 2013
N2 - A novel side-chain poly(arylene ether ketone) functionalized with 1,4-butane-sultone (SQNPAEK-x, "x" refers to the number of the attaching sulfobutyl groups in one unit) were synthesized for proton exchange membrane fuel cell. SQNPAEK-x showed high proton conductivity up to 0.317 S cm-1 at 80 C and excellent dimensional stability due to the remaining hydroxyl groups. Morphological investigations revealed that SQNPAEK-x contained more uniform ionic clusters than the main-chain sulfonated poly(arylene ether ketone), which increased the proton conductivity. Other properties such as water uptake, mechanical properties were also investigated. It should be noted that SQNPAEK-1.5 possesses the best overall performance with proton conductivity (0.204 S cm-1 at 80 C) higher that Nafion 117, while the swelling ratio was equivalent (13.2% at 80 C). All the results indicate that the SQNPAEK-x membranes are promising candidates for proton exchange membrane fuel cells.
AB - A novel side-chain poly(arylene ether ketone) functionalized with 1,4-butane-sultone (SQNPAEK-x, "x" refers to the number of the attaching sulfobutyl groups in one unit) were synthesized for proton exchange membrane fuel cell. SQNPAEK-x showed high proton conductivity up to 0.317 S cm-1 at 80 C and excellent dimensional stability due to the remaining hydroxyl groups. Morphological investigations revealed that SQNPAEK-x contained more uniform ionic clusters than the main-chain sulfonated poly(arylene ether ketone), which increased the proton conductivity. Other properties such as water uptake, mechanical properties were also investigated. It should be noted that SQNPAEK-1.5 possesses the best overall performance with proton conductivity (0.204 S cm-1 at 80 C) higher that Nafion 117, while the swelling ratio was equivalent (13.2% at 80 C). All the results indicate that the SQNPAEK-x membranes are promising candidates for proton exchange membrane fuel cells.
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U2 - 10.1016/j.ijhydene.2013.07.066
DO - 10.1016/j.ijhydene.2013.07.066
M3 - Article
AN - SCOPUS:84883793701
VL - 38
SP - 12363
EP - 12373
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
SN - 0360-3199
IS - 28
ER -