Kim Je-Deok, Matsushita Satoshi, Tamura Kenji
Polymer Electrolyte Fuel Cell Group, Global Research Center for Environmental and Energy Based on Nanomaterials Science (GREEN),Tsukuba Ibaraki 305-0044, Japan.
Hydrogen Production Materials Group, Center for Green Research on Energy and Environmental Materials, Tsukuba Ibaraki 305-0044, Japan.
Polymers (Basel). 2020 Jun 16;12(6):1354. doi: 10.3390/polym12061354.
A crosslinked sulfonated polyphenylsulfone (CSPPSU) polymer and polyvinyl alcohol (PVA) were thermally crosslinked; then, a CSPPSU-vinylon membrane was synthesized using a formalization reaction. Its use as an electrolyte membrane for fuel cells was investigated. PVA was synthesized from polyvinyl acetate (PVAc), using a saponification reaction. The CSPPSU-vinylon membrane was synthesized by the addition of PVA (5 wt%, 10 wt%, 20 wt%), and its chemical, mechanical, conductivity, and fuel cell properties were studied. The conductivity of the CSPPSU-10vinylon membrane is higher than that of the CSPPSU membrane, and a conductivity of 66 mS/cm was obtained at 120 °C and 90% RH (relative humidity). From a fuel cell evaluation at 80 °C, the CSPPSU-10vinylon membrane has a higher current density than CSPPSU and Nafion212 membranes, in both high (100% RH) and low humidification (60% RH). By using a CSPPSU-vinylon membrane instead of a CSPPSU membrane, the conductivity and fuel cell performance improved.
将交联磺化聚砜（CSPPSU）聚合物与聚乙烯醇（PVA）进行热交联；然后，通过缩醛化反应合成了CSPPSU - 维尼纶膜。研究了其作为燃料电池电解质膜的用途。PVA由聚醋酸乙烯酯（PVAc）通过皂化反应合成。通过添加PVA（5 wt%、10 wt%、20 wt%）合成了CSPPSU - 维尼纶膜，并对其化学、机械、导电和燃料电池性能进行了研究。CSPPSU - 10维尼纶膜的电导率高于CSPPSU膜，在120℃和90%相对湿度（RH）下获得了66 mS/cm的电导率。在80℃进行的燃料电池评估中，在高湿度（100% RH）和低湿度（60% RH）条件下，CSPPSU - 10维尼纶膜的电流密度均高于CSPPSU膜和Nafion212膜。通过使用CSPPSU - 维尼纶膜代替CSPPSU膜，电导率和燃料电池性能得到了改善。
