Macromolecular protic ionic liquid-based proton-conducting membranes for anhydrous proton exchange membrane application

作者：Chu, Fuqiang; Lin, Bencai; Yan, Feng^*; Qiu, Lihua; Lu, Jianmei

来源：Journal of Power Sources, 2011, 196(19): 7979-7984.

DOI：10.1016/j.jpowsour.2011.05.064

• Ionic liquid
• Polyamidoamine dendrimer
• Polymer electrolyte membrane
• Fuel cells

A type of anhydrous proton-conducting membranes are prepared via in situ cross-linking of polymerizable oils containing polyamidoamine (PAMAM) dendrimer-based macromolecular protic ionic liquids (PILs). The resultant composite membranes are transparent, flexible, and thermally stable up to 350 degrees C. Under anhydrous conditions, the macromolecular PIL-based membranes show proton conductivity of 1.2 x 10(-2) S cm(-1) at 160 degrees C, which is higher than that of the membranes containing small-molecule PILs. Furthermore, the macromolecular PIL-based composite membranes have much better PIL retention ability than which containing small-molecule PILs. These properties make this type of macromolecular PIL-based membranes suitable for high-temperature anhydrous polymer electrolyte membrane fuel cells.

• 出版日期2011-10-1
• 单位苏州大学