| 초록 |
Sulfonated poly(ether ether ketone) (sPEEK)/cerium ion (Ce3+) composite membrane was studied for PEMFC applications. Cerium ion removes the OH radicals, the major degradation reaction material, in PEMFC operation. Ce3+ ion was prepared with 18-crown-6-ether to form metal/organic complex. This structure could prohibit the direct interaction between cerium ion and sulfonic acid groups in membranes and leak of cerium ion from membrane. Fourier transform infrared spectroscopy (FT-IR), scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDX), and small angle X-ray scattering spectroscopy (SAXS) were used for structure analysis of membrane. Proton conductivity, wateruptake, tensile strength, degradation property by Fenton's test and other properties were analyzed for PEMFC application. |
