电源技术2017，Vol.41Issue(2)：223-226,233,5.
锰离子及过氧化氢对质子交换膜稳定性的影响
Effect of Mn2+ and H2O2 on stability of proton exchange membrane
摘要
Abstract
The interaction between the proton exchange membrane and a solution containing manganese ions and hydrogen peroxide was investigated using thermo-gravimetric analysis (TGA) and infrared spectroscopy.The effects of manganese ion concentration,hydrogen peroxide concentration,and dipping time on membrane stability were investigated by TGA.It revealed that the pyrolysis peak temperature related to sulfonic acid groups nearly disappeared following corrosion.Another pyrolysis peak temperature appeared at high temperatures after corrosion.The corroded films were analyzed by scanning electron microscopy,dynamic thermo-mechanical analysis,impedance electrical conductivity measurements,and thermal lifetime measurements.Isothermal mass loss at 200 ℃ in air indicated that the IR vibration peaks were unchanged compared to those of an unaltered membrane,but the intensity of the CF2 stretching vibration peak decreased 67.7％ at 1 210 cm-1 when heated to 315 ℃.The membrane conversion rate for isothermal mass loss in air was far larger than that of non-isothermal mass loss in a nitrogen atmosphere.关键词
锰离子/过氧化氢/燃料电池/质子交换膜/稳定性Key words
manganese ion/hydrogen peroxide/fuel cell/proton exchange membrane/stability分类
信息技术与安全科学引用本文复制引用
陈颖,鲁伊恒,冯文权,杨涛..锰离子及过氧化氢对质子交换膜稳定性的影响[J].电源技术,2017,41(2):223-226,233,5.基金项目
安徽省国际科技合作计划资助项目(06088018) （06088018）
淮南市科技计划资助项目(2011A07923) （2011A07923）
