Nafion (R)/mordenite composite membranes for improved direct methanol fuel cell performance

作者：Yoonoo Chaiwat; Dawson Craig P; Roberts Edward P L; Holmes Stuart M^*

来源：Journal of Membrane Science, 2011, 369(1-2): 367-374.

DOI：10.1016/j.memsci.2010.12.030

• Fuel cell
• Composite membrane
• Methanol crossover
• Zeolite
• Mordenite

Composite polymer proton exchange membranes (PEM) were prepared by solution recasting. The composite membranes formed are based on Nafion incorporating a silane functionalized zeolite, mordenite, as an additive. The composite membranes were placed within a single cell DMFC and compared to an MEA featuring a standard Nation 125 mu m membrane. The impact of mordenite particle size, the choice of the silane functionalizing agent and the membrane preparation procedure are investigated. A composite ion exchange membrane which featured Nation and a ground mordenite which was functionalized using glycidoxypropyltrimethoxysilane achieved a power density that outperformed a standard Nation MEA under all conditions.

• 出版日期2011-3-1