Double cross-linked polyetheretherketone proton exchange membrane for fuel cell

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• 作者：Hongze Luo^a ; ^{hongzee@gmail.com} ; Guntars Vaivars^b ; Mkhulu Mathe^a
• 关键词：Cross-linked PEEK ; Water uptake ; Proton conductivity ; Proton exchange membrane ; Fuel cell
• 刊名：International Journal of Hydrogen Energy
• 出版年：2012
• 期刊代码：42_03603199
• 类别：ch
• 出版时间：April, 2012
• 卷：37
• 期：7
• 页码：6148-6152
• 文件大小：405 K

摘要

The proton exchange membrane based on polyetheretherketone was prepared via two steps of cross-linking. The properties of the double cross-linked membrane (water uptake, proton conductivity, methanol permeability and thermal stability) have been investigated for fuel cell applications. The prepared membrane exhibited relatively high proton conductivity, 3.2聽脳聽10^鈭?聽S聽cm^鈭? at room temperature and 5.8聽脳聽10^鈭?聽S聽cm^鈭? at 80聽掳C. The聽second cross-linking significantly decreased the water uptake of the membrane. The performance of direct methanol fuel cell was slightly improved as compared to Nafion^庐 117 due to its low methanol permeability. The results indicated that the double cross-linked membrane is a promising candidate for the polymer electrolyte membrane fuel cell, especially for the direct methanol fuel cell due to its low methanol permeability and high stability in a methanol solution.