Nanocomposite membranes based on quaternized polysulfone and functionalized montmorillonite for anion-exchange membranes

作者：Liao, Xiaofeng; Ren, Li; Chen, Dongzhi; Liu, Xiaohong; Zhang, Hongwei^*

来源：Journal of Power Sources, 2015, 286: 258-263.

DOI：10.1016/j.jpowsour.2015.03.182

• Quatemized polysulfone
• Montmorillonite
• Hydroxide conductivity

In this paper, functionalized montmorillonite is intercalated with cetyl trimethyl ammonium chloride and (3-aminopropyl)triethoxysilane. Quaternized polysulfone/functionalized montmorillonite nanocomposite membranes are fabricated to evaluate their potential in anion-exchange membrane fuel cells. Fourier transform infrared spectroscopy, thermogravimetric analyzer and X-ray diffractometer are used to confirm the success of intercalation. The performances of the composite membranes for the anion-exchange membrane fuel cells in terms of their water uptake, mechanical property and ionic conductivity are investigated. Compared with other anion-exchange membranes, the nanocomposite membrane containing 5% montmorillonite modified by cetyl trimethyl ammonium chloride exhibits lower water uptake, higher ultimate stress and larger ionic conductivity. It exhibits an ionic conductivity of 4.73 x 10(-2) S cm(-1) at 95 degrees C.

• 出版日期2015-7-15
• 单位武汉纺织大学