Hybrid acid–base polymer membranes prepared for application in fuel cells

2009 ◽  
Vol 186 (2) ◽  
pp. 286-292 ◽  
Author(s):  
Dan Wu ◽  
Tongwen Xu ◽  
Liang Wu ◽  
Yonghui Wu
e-Polymers ◽  
2011 ◽  
Vol 11 (1) ◽  
Author(s):  
Wen-Chin Tsen ◽  
Fu-Sheng Chuang ◽  
Yao-Chi Shu ◽  
Chien-Chung Chen ◽  
Chunli Gong ◽  
...  

AbstractNew acid-base polymer blends based on sulfonated poly(phenylene oxide) (SPPO) as the proton-conducting component and poly(ether imide) (PEI) as the basic component were considered for use as proton-exchange membranes (PEM). The obtained blend membranes had a higher thermal stability and a higher glass transition temperature (Tg) than the pure SPPO, as revealed by TGA and DSC. The morphology of blend membranes indicated that PEI was highly compatible with SPPO polymers because of the formation of hydrogen bonds between the sulfonated acid and PEI. Although the blend membranes exhibited a lower water uptake and lower proton conductivity than the pure SPPO membrane, the PEI component improved the dimensional stability, mechanic properties, and especially inhibited methanol permeation. The methanol permeability coefficient of the blend membrane with 30 wt.% PEI content was 9.68×10-8 cm2/s, which is lower than that of the pure SPPO and just one tenth of that of Nafion® 112. This considerable reduction in methanol crossover revealed the feasibility of the blend membranes as promising electrolytes for direct methanol fuel cells.


1999 ◽  
Vol 125 (1-4) ◽  
pp. 243-249 ◽  
Author(s):  
Jochen Kerres ◽  
Andreas Ullrich ◽  
Frank Meier ◽  
Thomas Häring

2008 ◽  
Vol 322 (2) ◽  
pp. 331-338 ◽  
Author(s):  
Rong-Qiang Fu ◽  
David Julius ◽  
Liang Hong ◽  
Jim-Yang Lee

2021 ◽  
pp. 119399
Author(s):  
Lei Wu ◽  
Xiuling Chen ◽  
Zhiguang Zhang ◽  
Shan Xu ◽  
Canghai Ma ◽  
...  

Tehnika ◽  
2014 ◽  
Vol 69 (2) ◽  
pp. 190-195
Author(s):  
Ivan D. Stoševski ◽  
Jelena I. Krstić ◽  
Nikola Č. Vokić ◽  
Zorica M. Kačarević-Popović ◽  
Šćepan S. Miljanić

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