酸碱对型FSP/SPPESK质子传导膜的制备、表征及其在燃料电池中的应用
evelopment of Acid-base FSP/SPPESK polymer composite membranes for application in fuel cells
以不同质子化程度的全氟磺酸树脂（FSP）为酸性聚合物，以Na+-型的二氮杂萘酮型磺化聚芳醚砜酮（SPPESK）为碱性聚合物，,将二者在160oC下溶解在N，N-二甲基甲酰胺（DMF）中配成质量分数为20%的成膜液,80℃下刮制成膜,制得酸碱对型质子导电聚合物膜.首先用红外（FT-IR）谱图表征了膜中酸碱对的存在,并研究了不同的酸碱对含量对膜内部两相间的相容性，膜的热稳定性、耐溶胀性及质子传导性等等的影响，实验数据表明这种质子传导膜具有良好的物化性能和较高的质子电导率（>0.09 S cm-1）和优异的耐燃料渗透性（甲醇渗透率为Nafion®膜的30%左右）,故在80℃下表现出较Nafion®-112膜优异的燃料电池单池性能：当池电压在0.38V，电流密度在2600 mA cm-2时，能量密度能达到最高值990 mW cm-2，表明该膜完全有在质子交换膜燃料电池（PEMFCs）中应用的潜力。
For application in polymer electrolyte membrane fuel cells, acid-base polymer composite membranes were fabricated from blends of sulfonated poly(phthalazinone ether sulfone kentone) (SPPESK) and perfluorosulfonic polymer (FSP) via solution casting. Because of the acid-base interaction, these blend membranes exhibited a good miscibility and electrochemical performances. In particular, the blend can have a proton conductivity of ,0.09-0.12 S cm-1 at 25oC and water uptake of 20-50%. For application in fuel cells, these membranes should be prepared by control of protonation degree of FSP within 30-100 wt% and FSP content higher than 20 wt%. The resulting membrane exhibits better electrochemical performances during fuel cell tests than those of pure FSP and Nafion-112 membranes: 0.09-0.12 S cm-1 of proton conductivity at 25oC and 990mW cm-2 of the maximum power density at a current density of 2600 mA cm-2 and a cell voltage of 0.38 V.
徐铜文、吴亮
氢能、氢能利用高分子化合物工业电化学工业
质子传导膜酸碱对质子电导率质子交换膜燃料电池耐溶胀性甲醇渗透
proton conducting membraneacid base pairsproton conductivityproton conducting membrane fuel cellswelling resistancemethanol permeability
徐铜文,吴亮.酸碱对型FSP/SPPESK质子传导膜的制备、表征及其在燃料电池中的应用[EB/OL].(2009-09-10)[2025-08-11].http://www.paper.edu.cn/releasepaper/content/200909-299.点此复制
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