Surfactant Effect on Preparation of PTFE-reinforced Composite Electrolyte Membrane for PEMFC
발표자
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초록
내용
Poly(tetrafluoroethylene)(PTFE)-reinforced composite membrane have attracted in proton exchange membrane fuel cell (PEMFC) due to its superior mechanical and thermal properties, compared with Nafion ionomer membrane. PTFE-reinforced composite electrolyte membrane are prepared by impregnation of porous PTFE membrane with Nafion solution. However, hydrophilic Nafion solution is difficult to disperse during impregnation of hydrophobic PTFE membrane, which deteriorate the PEMFC performance dramatically. In this study, we fabricate ionomer solution containing surfactant such as Triton X-100 (Polyethylene glycol tert-octylphenyl ether) or IGEPAL CO-630 (Polyoxyethylene glycol nonylphenyl ether). It is found that the single-cell and durability performance of the PTFE-reinforced composite membrane containing IGEPAL CO-630 are much higher than those of membrane containing Triton X-100.